497

Exhibit Index

Exhibit No.
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

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SPDR Barclays 1-10 Year TIPS ETF

SPDR^® Barclays 1-10 Year TIPS ETF

INVESTMENT OBJECTIVE

The SPDR Barclays 1-10 Year TIPS ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the 1-10 year inflation protected sector of the United States Treasury market.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR Barclays 1-10 Year TIPS ETF
MANAGEMENT FEES		0.15%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES	[2]	none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.15%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3
SPDR Barclays 1-10 Year TIPS ETF	15	48

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the period from the commencement of the Fund’s operations (May 29, 2013) to the end of the most recent fiscal year, the Fund’s portfolio turnover rate was 1% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the Barclays 1-10 Year Government Inflation-linked Bond Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities the Adviser determines have economic characteristics substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index is designed to measure the performance of the inflation protected public obligations of the U.S. Treasury commonly known as “TIPS” that have a remaining maturity greater than or equal to 1 year and less than 10 years. TIPS are securities issued by the U.S. Treasury that are designed to provide inflation protection to investors. The Index includes publicly issued, TIPS that have at least 1 year remaining to maturity and less than 10 years on index rebalancing date, with an issue size equal to or in excess of $500 million. The total amount outstanding for each issue is reflected, there are no adjustments made for sums held in the Federal Reserve System Open Market Account (SOMA) account. Bonds must be capital-indexed and linked to a domestic inflation index. The securities must be issued by the US Government and must be denominated in U.S. dollars and pay coupon and principal in U.S. dollars. New bonds/ reopening’s entering the Index must settle on or before the index rebalancing date. The Index is rebalanced on the last calendar date of each month. As of September 30, 2013, the Index was comprised of 22 securities.

The Index is sponsored by Barclay’s, Inc. (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index and relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

INFLATION PROTECTED SECURITIES RISK:  Inflation protected securities, such as TIPS, generally fluctuate in response to changes in “real” interest rates. Real interest rates represent nominal (stated) interest rates reduced by the expected impact of inflation. Generally, an inflation protected security’s value will decrease when real interest rates rise and increase when real interest rates fall. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal and/or interest is adjusted for inflation. During periods of “deflation,” the principal and income of an inflation protected security may decline in price, which could result in losses for the Fund.

DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns based on net assets and comparing the Fund’s performance to the Index.

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] "Other Expenses" are based on estimated amounts for the current fiscal year.

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SPDR(R) S&P(R) Software & Services ETF

SPDR^® S&P^® Software & Services ETF

INVESTMENT OBJECTIVE

The SPDR S&P Software & Services ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the computer software segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Software & Services ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Software & Services ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 37% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Software & Services Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the software and services industry group of the S&P Total Stock Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 163 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

COMPUTER SOFTWARE/SERVICES SECTOR RISK:  The Fund’s assets will generally be concentrated in the computer industry, which means the Fund will be more affected by the performance of the computer industry versus a fund that was more diversified. The Fund will concentrate in segments of the computer industry. The computer industry, including companies servicing the computer industry, can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of industry participants depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results.

Many computer companies rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.

TECHNOLOGY SECTOR RISK:  The Fund is subject to the risk that market or economic factors impacting technology companies and companies that rely heavily on technology advances could have a major effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 14.52% (Q1 2012)
Lowest Quarterly Return: -4.09% (Q2 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Software & Services ETF	15.43%	22.81%	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF RETURN AFTER TAXES ON DISTRIBUTIONS	14.39%	21.91%	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	10.40%	19.09%	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF S&P SOFTWARE & SERVICES SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	15.87%	23.27%	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 36.05%.

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SPDR(R) S&P(R) Health Care Equipment ETF

SPDR^® S&P^® Health Care Equipment ETF

INVESTMENT OBJECTIVE

The SPDR S&P Health Care Equipment ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the health care equipment and supplies segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Health Care Equipment ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Health Care Equipment ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Health Care Equipment Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the health care equipment industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 58 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

HEALTH CARE EQUIPMENT SECTOR RISK:  The Fund’s assets will generally be concentrated in the health care equipment and supplies industry, which means the Fund will be more affected by the performance of the health care equipment and supplies industry versus a fund that was more diversified. Companies in the health care industry are affected by rising costs of medical products, devices and services and the increased emphasis on the delivery of health care through outpatient services. The health care industry is highly competitive and can be significantly affected by extensive government regulation or government reimbursement for medical expenses. The equipment may be subject to extensive litigation based on malpractice claims, product liability claims or other litigation. Medical equipment manufacturers are heavily dependent on patent protection and the expiration of patents may adversely affect their profitability. Many new health care products are subject to the approval of the U.S. Food and Drug Administration (“FDA”). The process of obtaining FDA approval is often long and expensive.

HEALTH CARE SECTOR RISK:  Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the health care sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of the companies. Health care companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the health care sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 14.44% (Q1 2012)
Lowest Quarterly Return: -4.64% (Q4 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Health Care Equipment ETF	16.51%	7.09%	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF RETURN AFTER TAXES ON DISTRIBUTIONS	16.05%	6.81%	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	11.06%	5.97%	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF S&P HEALTH CARE EQUIPMENT SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	16.98%	7.51%	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 23.11%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Telecom ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Telecom ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Telecom ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the telecommunications segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	42.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Telecom Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the telecommunications industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 54 stocks. Should the Index not contain the required minimum of 35 qualifying companies, it may contain members of the Communications Equipment sub-industry. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. TELECOMMUNICATIONS SECTOR RISK:  The Fund’s assets will generally be concentrated in the telecommunications industry, which means the Fund will be more affected by the performance of the telecommunications industry versus a fund that was more diversified. The telecommunications industry is subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals or the enactment of new adverse regulatory requirements may adversely affect the business of the telecommunications companies. The telecommunications industry can also be significantly affected by intense competition, including competition with alternative technologies such as wireless communications, product compatibility, consumer preferences, rapid product obsolescence and research and development of new products. Technological innovations may make the products and services of telecommunications companies obsolete. Other risks include uncertainties resulting from such companies’ diversification into new domestic and international businesses, as well as agreements by any such companies linking future rate increases to inflation or other factors not directly related to the actual operating profits of the enterprise. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 11.65% (Q1 2012) Lowest Quarterly Return: -11.54% (Q2 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Telecom ETF | SPDR(R) S&P(R) Telecom ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	11.97%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	14.90%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	11.65%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(11.54%)
ONE YEAR	rr_AverageAnnualReturnYear01	11.97%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	(3.90%)
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Telecom ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	11.15%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	(4.33%)
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Telecom ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	8.16%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	(3.45%)
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF | S&P TELECOM SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	12.47%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	(3.56%)
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 14.90%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Health Care Equipment ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Health Care Equipment ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Health Care Equipment ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the health care equipment and supplies segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	34.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Health Care Equipment Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the health care equipment industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 58 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. HEALTH CARE EQUIPMENT SECTOR RISK:  The Fund’s assets will generally be concentrated in the health care equipment and supplies industry, which means the Fund will be more affected by the performance of the health care equipment and supplies industry versus a fund that was more diversified. Companies in the health care industry are affected by rising costs of medical products, devices and services and the increased emphasis on the delivery of health care through outpatient services. The health care industry is highly competitive and can be significantly affected by extensive government regulation or government reimbursement for medical expenses. The equipment may be subject to extensive litigation based on malpractice claims, product liability claims or other litigation. Medical equipment manufacturers are heavily dependent on patent protection and the expiration of patents may adversely affect their profitability. Many new health care products are subject to the approval of the U.S. Food and Drug Administration (“FDA”). The process of obtaining FDA approval is often long and expensive. HEALTH CARE SECTOR RISK:  Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the health care sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of the companies. Health care companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the health care sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 14.44% (Q1 2012) Lowest Quarterly Return: -4.64% (Q4 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Health Care Equipment ETF | SPDR(R) S&P(R) Health Care Equipment ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	16.51%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	23.11%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	14.44%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.64%)
ONE YEAR	rr_AverageAnnualReturnYear01	16.51%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	7.09%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Health Care Equipment ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	16.05%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	6.81%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Health Care Equipment ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	11.06%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	5.97%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Health Care Equipment ETF | S&P HEALTH CARE EQUIPMENT SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	16.98%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	7.51%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 23.11%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Software & Services ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Software & Services ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Software & Services ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the computer software segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 37% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	37.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Software & Services Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the software and services industry group of the S&P Total Stock Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 163 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. COMPUTER SOFTWARE/SERVICES SECTOR RISK:  The Fund’s assets will generally be concentrated in the computer industry, which means the Fund will be more affected by the performance of the computer industry versus a fund that was more diversified. The Fund will concentrate in segments of the computer industry. The computer industry, including companies servicing the computer industry, can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by computer companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of industry participants depends in substantial part on the timely and successful introduction of new products and the ability to service such products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Many computer companies rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by computer companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology. TECHNOLOGY SECTOR RISK:  The Fund is subject to the risk that market or economic factors impacting technology companies and companies that rely heavily on technology advances could have a major effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 14.52% (Q1 2012) Lowest Quarterly Return: -4.09% (Q2 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Software & Services ETF | SPDR(R) S&P(R) Software & Services ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	15.43%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	36.05%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	14.52%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.09%)
ONE YEAR	rr_AverageAnnualReturnYear01	15.43%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	22.81%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Software & Services ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	14.39%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	21.91%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Software & Services ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	10.40%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	19.09%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Software & Services ETF | S&P SOFTWARE & SERVICES SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	15.87%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	23.27%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 36.05%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR Barclays Short Term High Yield Bond ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® Barclays Short Term High Yield Bond ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR Barclays Short Term High Yield Bond ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the U.S. high yield short term corporate bond market.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 54% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	54.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the Barclays US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities that the Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index is designed to measure the performance of short-term publicly issued U.S. dollar-denominated high yield corporate bonds. High yield securities are generally rated below investment-grade and are commonly referred to as “junk” bonds. The Index includes publicly issued U.S. dollar denominated, non-investment-grade, fixed rate, taxable corporate bonds that have a remaining maturity of less than 5 years regardless of optionality, are rated between Caa3/CCC-/CCC- and Ba1/BB+/BB+ using the middle rating of Moody’s Investors Service, Inc., Fitch, Inc., or Standard & Poor’s, Inc., respectively, and have at least a $350 million outstanding par value. The Index includes only corporate sectors. The corporate sectors are Industrial, Utility and Financial Institutions. Excluded from the Index are non-corporate bonds, structured notes with embedded swaps or other special features, bonds with equity-type features (e.g., warrants, convertibility), floating-rate securities and securities that move from fixed to floating-rate, Emerging Market Bonds, defaulted bonds, original issue zero coupon bonds, private placements and payment in kind securities. The Index is issuer-capped and the securities in the Index are updated on the index rebalancing date. As of September 30, 2013, there were approximately 399 securities in the Index and the modified adjusted duration of securities in the Index was approximately 2.14 years. The Index is sponsored by Barclays, Inc. (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index and the relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income. HIGH YIELD SECURITIES RISK:  Securities rated below investment grade, commonly referred to as “junk bonds,” include bonds that are rated Ba1/BB+/BB+ or below by Moody’s Investors Service, Inc., Fitch, Inc., or Standard & Poor’s, Inc., respectively, or unrated securities considered to be of equivalent quality by the Adviser, and may involve greater risks than securities in higher rating categories. Such bonds are regarded as speculative in nature, involve greater risk of default by the issuing entity and may be subject to greater market fluctuations than higher-rated fixed income securities. They are usually issued by companies without long track records of sales and earnings, or by those companies with questionable credit strength. The retail secondary market for these “junk bonds” may be less liquid than that of higher-rated securities and adverse conditions could make it difficult at times to sell certain securities or could result in lower prices than those used in calculating the Fund’s net asset value. When the Fund invests in “junk bonds,” it may also be subject to greater credit risk because it may invest in debt securities issued in connection with corporate restructuring by highly leveraged issuers or in debt securities not current in the payment of interest or principal or in default. INDUSTRIAL SECTOR RISK:  Industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the government budgets. Transportation securities, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs. UTILITIES SECTOR RISK:  The rates that traditional regulated utility companies may charge their customers generally are subject to review and limitation by governmental regulatory commissions. Although rate changes of a utility usually fluctuate in approximate correlation with financing costs due to political and regulatory factors, rate changes ordinarily occur only following a delay after the changes in financing costs. This factor will tend to favorably affect a regulated utility company’s earnings and dividends in times of decreasing costs, but conversely, will tend to adversely affect earnings and dividends when costs are rising. The value of regulated utility debt securities (and, to a lesser extent, equity securities) tends to have an inverse relationship to the movement of interest rates. Certain utility companies have experienced full or partial deregulation in recent years. These utility companies are frequently more similar to industrial companies in that they are subject to greater competition and have been permitted by regulators to diversify outside of their original geographic regions and their traditional lines of business. These opportunities may permit certain utility companies to earn more than their traditional regulated rates of return. Some companies, however, may be forced to defend their core business and may be less profitable. Among the risks that may affect utility companies are the following: risks of increases in fuel and other operating costs; the high cost of borrowing to finance capital construction during inflationary periods; restrictions on operations and increased costs and delays associated with compliance with environmental and nuclear safety regulations; and the difficulties involved in obtaining natural gas for resale or fuel for generating electricity at reasonable prices. Other risks include those related to the construction and operation of nuclear power plants; the effects of energy conservation and the effects of regulatory changes. FINANCIAL SECTOR RISK:  Financial services companies are subject to extensive governmental regulation which may limit both the amounts and types of loans and other financial commitments they can make, and the interest rates and fees they can charge. Profitability is largely dependent on the availability and cost of capital funds, and can fluctuate significantly when interest rates change or due to increased competition. In addition, the recent deterioration of the credit markets generally has caused an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Recent events in the financial sector have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Numerous financial services companies have experienced substantial declines in the valuations of their assets, taken action to raise capital (such as the issuance of debt or equity securities), or even ceased operations. These actions have caused the securities of many financial services companies to experience a dramatic decline in value. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Insurance companies may be subject to severe price competition. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns based on net assets and comparing the Fund’s performance to the Index.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history.
SPDR Barclays Short Term High Yield Bond ETF | SPDR Barclays Short Term High Yield Bond ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.40%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.40%
YEAR 1	rr_ExpenseExampleYear01	$ 41
YEAR 3	rr_ExpenseExampleYear03	128
YEAR 5	rr_ExpenseExampleYear05	224
YEAR 10	rr_ExpenseExampleYear10	$ 505

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Aerospace & Defense ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Aerospace & Defense ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Aerospace & Defense ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the aerospace and defense segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	34.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Aerospace & Defense Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the aerospace and defense industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 35 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. AEROSPACE AND DEFENSE SECTOR RISK:  The Fund’s assets will generally be concentrated in the aerospace and defense industry, which means the Fund will be more affected by the performance of the aerospace and defense industry versus a fund that was more diversified. The aerospace and defense industry can be significantly affected by government aerospace and defense regulation and spending policies because companies involved in this industry rely to a significant extent on U.S. (and other) government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets. INDUSTRIAL SECTOR RISK:  Stock prices for industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on U.S. and foreign government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets. Transportation stocks, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 10.80% (Q1 2012) Lowest Quarterly Return: -3.79% (Q2 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Aerospace & Defense ETF | SPDR(R) S&P(R) Aerospace & Defense ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	17.42%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	34.71%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	10.80%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.79%)
ONE YEAR	rr_AverageAnnualReturnYear01	17.42%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	23.85%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Aerospace & Defense ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	16.86%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	23.34%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Aerospace & Defense ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	11.68%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	20.21%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF | S&P AEROSPACE & DEFENSE SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	17.86%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	24.27%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund’s Calendar Year-To-Date return was 34.71%.

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SPDR(R) Global Dow ETF

SPDR^® Global Dow ETF

INVESTMENT OBJECTIVE

The SPDR Global Dow ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of multinational blue-chip issuers.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) Global Dow ETF
MANAGEMENT FEES		0.50%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.50%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) Global Dow ETF	51	160	280	628

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 13% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of The Global Dow (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA FM).

The Index is made up of 150 constituents from around the world selected by an Averages Committee comprised of the managing editor of the Wall Street Journal, the head of Dow Jones Indexes research and the head of CME Group research. The 150 companies are selected not just based on size and reputation, but also on their promise of future growth. The Index has been designed to cover both developed and emerging countries. The Index is equal weighted and will be reset to equal weights annually each September. As of September 30, 2013, the Index was comprised of 150 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (“Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

FOREIGN SECURITIES RISK:  Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in securities issued by entities based outside the U.S. pose distinct risks since political and economic events unique to a country or region will affect those markets and their issuers. Further, such entities and/or their securities may also be affected by currency controls; different accounting, auditing, financial reporting, and legal standards and practices; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. These risks may be heightened in connection with investments in developing or emerging countries.

EMERGING MARKETS RISK:  Investment in emerging markets subjects the Fund to a greater risk of loss than investments in a developed market. This is due to, among other things, greater market volatility, lower trading volume, political and economic instability, high levels of inflation, deflation or currency devaluation, greater risk of market shut down, and more governmental limitations on foreign investment policy than those typically found in a developed market. In addition, the financial stability of issuers (including governments) in emerging market countries may be more precarious than in other countries. As a result, there will tend to be an increased risk of price volatility in a Fund’s investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar. Settlement practices for transactions in foreign markets may differ from those in U.S. markets. Such differences include delays beyond periods customary in the United States and practices, such as delivery of securities prior to receipt of payment, which increase the likelihood of a “failed settlement.” Failed settlements can result in losses to the Fund. For these and other reasons, investments in emerging markets are often considered speculative.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 15.94% (Q2 2009)
Lowest Quarterly Return: -19.80% (Q4 2008)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective May 2, 2011, the Fund changed its benchmark index to The Global Dow from the Dow Jones Global Titans 50 Index U.S. Close. The Fund’s performance prior to May 2, 2011 is therefore based on the Fund’s prior investment strategy to track a different benchmark index.

Average Annual Total Returns		ONE YEAR	FIVE YEARS	TEN YEARS	INCEPTION DATE
SPDR(R) Global Dow ETF		13.54%	(4.17%)	3.53%
SPDR(R) Global Dow ETF RETURN AFTER TAXES ON DISTRIBUTIONS		13.12%	(4.57%)	3.16%
SPDR(R) Global Dow ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES		9.32%	(3.54%)	3.04%
SPDR(R) Global Dow ETF THE GLOBAL DOW (reflects no deduction for fees, expenses or taxes)	[1]	13.41%			Nov. 09, 2008
SPDR(R) Global Dow ETF DOW JONES GLOBAL TITANS 50 INDEX U.S. CLOSE (reflects no deduction for fees, expenses or taxes)		5.43%	(3.21%)	4.32%

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 17.65%.

[1] The Global Dow inception date is November 9, 2008.

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SPDR(R) S&P(R) Health Care Services ETF

SPDR^® S&P^® Health Care Services ETF

INVESTMENT OBJECTIVE

The SPDR S&P Health Care Services ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the health care providers and services segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Health Care Services ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Health Care Services ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 48% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Health Care Services Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the health care services industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 53 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

HEALTH CARE SERVICES SECTOR RISK:  The Fund’s assets will generally be concentrated in the health care providers and services industry, which means the Fund will be more affected by the performance of the health care providers and services industry versus a fund that was more diversified. Companies in the health care industry are affected by rising costs of medical products, devices and services and the increased emphasis on the delivery of health care through outpatient services. The health care industry is highly competitive and can be significantly affected by extensive government regulation or government reimbursement for medical expenses. The equipment may be subject to extensive litigation based on malpractice claims, product liability claims or other litigation. Medical equipment manufacturers are heavily dependent on patent protection and the expiration of patents may adversely affect their profitability. Many new health care products are subject to the approval of the U.S. Food and Drug Administration (“FDA”). The process of obtaining FDA approval is often long and expensive.

HEALTH CARE SECTOR RISK:  Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the health care sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of the companies. Health care companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the health care sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 11.47% (Q1 2012)
Lowest Quarterly Return: -0.99% (Q2 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Health Care Services ETF	22.60%	29.24%	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF RETURN AFTER TAXES ON DISTRIBUTIONS	21.16%	28.03%	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	14.95%	24.37%	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF S&P HEALTH CARE SERVICES SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	23.12%	29.78%	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 26.84%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Health Care Services ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Health Care Services ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Health Care Services ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the health care providers and services segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 48% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	48.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Health Care Services Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the health care services industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 53 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. HEALTH CARE SERVICES SECTOR RISK:  The Fund’s assets will generally be concentrated in the health care providers and services industry, which means the Fund will be more affected by the performance of the health care providers and services industry versus a fund that was more diversified. Companies in the health care industry are affected by rising costs of medical products, devices and services and the increased emphasis on the delivery of health care through outpatient services. The health care industry is highly competitive and can be significantly affected by extensive government regulation or government reimbursement for medical expenses. The equipment may be subject to extensive litigation based on malpractice claims, product liability claims or other litigation. Medical equipment manufacturers are heavily dependent on patent protection and the expiration of patents may adversely affect their profitability. Many new health care products are subject to the approval of the U.S. Food and Drug Administration (“FDA”). The process of obtaining FDA approval is often long and expensive. HEALTH CARE SECTOR RISK:  Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services. Companies in the health care sector are heavily dependent on obtaining and defending patents, which may be time consuming and costly, and the expiration of patents may also adversely affect the profitability of the companies. Health care companies are also subject to extensive litigation based on product liability and similar claims. In addition, their products can become obsolete due to industry innovation, changes in technologies or other market developments. Many new products in the health care sector require significant research and development and may be subject to regulatory approvals, all of which may be time consuming and costly with no guarantee that any product will come to market. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 11.47% (Q1 2012) Lowest Quarterly Return: -0.99% (Q2 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Health Care Services ETF | SPDR(R) S&P(R) Health Care Services ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	22.60%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	26.84%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	11.47%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(0.99%)
ONE YEAR	rr_AverageAnnualReturnYear01	22.60%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	29.24%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Health Care Services ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	21.16%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	28.03%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Health Care Services ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	14.95%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	24.37%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011
SPDR(R) S&P(R) Health Care Services ETF | S&P HEALTH CARE SERVICES SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	23.12%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	29.78%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 26.84%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
Document Creation Date	dei_DocumentCreationDate	Oct. 31, 2013

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S&P(R) Transportation ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P® Transportation ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P Transportation ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the transportation segment of a U.S. total market composite index.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 36% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	36.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P Transportation Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index represents the transportation industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 43 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. TRANSPORTATION SECTOR RISK:  The Fund’s assets will generally be concentrated in the transportation industry, which means the Fund will be more affected by the performance of the transportation industry versus a fund that was more diversified. The transportation industry can be significantly affected by changes in the economy, fuel prices, labor relations, technology developments, exchange rates, insurance costs, industry competition and government regulation. INDUSTRIAL SECTOR RISK:  Stock prices for industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on U.S. and foreign government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets. Transportation stocks, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 12.91% (Q4 2012) Lowest Quarterly Return: -3.26% (Q3 2012)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) S&P(R) Transportation ETF | SPDR(R) S&P(R) Transportation ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.35%
YEAR 1	rr_ExpenseExampleYear01	$ 36
YEAR 3	rr_ExpenseExampleYear03	113
YEAR 5	rr_ExpenseExampleYear05	197
YEAR 10	rr_ExpenseExampleYear10	$ 443
2012	rr_AnnualReturn2012	20.38%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	32.38%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	12.91%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.26%)
ONE YEAR	rr_AverageAnnualReturnYear01	20.38%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	3.64%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S&P(R) Transportation ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	20.23%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	3.54%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S&P(R) Transportation ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	13.44%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	3.10%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF | S&P TRANSPORTATION SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	20.90%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	4.04%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 32.38%.

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SPDR(R) S&P(R) Transportation ETF

SPDR^® S&P^® Transportation ETF

INVESTMENT OBJECTIVE

The SPDR S&P Transportation ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the transportation segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Transportation ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Transportation ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 36% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Transportation Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the transportation industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 43 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

TRANSPORTATION SECTOR RISK:  The Fund’s assets will generally be concentrated in the transportation industry, which means the Fund will be more affected by the performance of the transportation industry versus a fund that was more diversified. The transportation industry can be significantly affected by changes in the economy, fuel prices, labor relations, technology developments, exchange rates, insurance costs, industry competition and government regulation.

INDUSTRIAL SECTOR RISK:  Stock prices for industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on U.S. and foreign government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets. Transportation stocks, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 12.91% (Q4 2012)
Lowest Quarterly Return: -3.26% (Q3 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Transportation ETF	20.38%	3.64%	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF RETURN AFTER TAXES ON DISTRIBUTIONS	20.23%	3.54%	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	13.44%	3.10%	Jan. 26, 2011
SPDR(R) S&P(R) Transportation ETF S&P TRANSPORTATION SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	20.90%	4.04%	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 32.38%.

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SPDR(R) Morgan Stanley Technology ETF

SPDR^® Morgan Stanley Technology ETF

INVESTMENT OBJECTIVE

The SPDR Morgan Stanley Technology ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of publicly traded electronics-based technology companies.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) Morgan Stanley Technology ETF
MANAGEMENT FEES		0.50%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.50%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) Morgan Stanley Technology ETF	51	160	280	628

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 27% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the Morgan Stanley Technology Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index is composed purely of electronics-based technology companies. The Index was the first listed broad-market technology barometer dedicated exclusively to the electronics-based technology industry. The Index comprises companies drawn from the following technology sub-sectors: computer services; design software; server software, PC software and new media; networking and telecom equipment; server hardware, PC hardware and peripherals; specialized systems; and semiconductors. The New York Stock Exchange (“NYSE”) calculates the Index. Morgan Stanley & Co. Incorporated acts as consultant to the NYSE in connection with NYSE’s maintenance of the Index. The Index is equal-dollar-weighted to ensure that each of its component securities is represented in approximate equal dollar value. To ensure that each component stock continues to represent approximate equal market value in the Index, adjustments, if necessary, are made annually after the close of trading on the third Friday of December. As of September 30, 2013, the Index was comprised of 35 stocks.

The Index is sponsored by Morgan Stanley & Co. Incorporated (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

TECHNOLOGY SECTOR RISK:  The Fund’s assets will generally be concentrated in the technology industry, which means the Fund will be more affected by the performance of the technology industry versus a fund that was more diversified. The Fund is subject to the risk that market or economic factors impacting technology companies and companies that rely heavily on technology advances could have a major effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.

ELECTRONICS INDUSTRY RISK:  The electronics industry can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of industry participants depends in substantial part on the timely and successful introduction of new products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Companies in the electronics industry may rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by such companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.

EQUITY INVESTING RISK:   An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 27.51% (Q2 2003)
Lowest Quarterly Return: -28.11% (Q4 2008)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	FIVE YEARS	TEN YEARS
SPDR(R) Morgan Stanley Technology ETF	17.61%	2.62%	9.41%
SPDR(R) Morgan Stanley Technology ETF RETURN AFTER TAXES ON DISTRIBUTIONS	17.44%	2.52%	9.35%
SPDR(R) Morgan Stanley Technology ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	11.67%	2.23%	8.38%
SPDR(R) Morgan Stanley Technology ETF MORGAN STANLEY TECHNOLOGY INDEX (reflects no deduction for fees, expenses or taxes)	18.16%	3.06%	9.92%

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 20.74%.

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SPDR(R) S & P 600 Small Cap ETF

SPDR^® S&P 600 Small Cap ETF

INVESTMENT OBJECTIVE

The SPDR S&P 600 Small Cap ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of small capitalization exchange traded U.S. equity securities.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). “Acquired Fund Fees and Expenses” reflect the Fund’s pro rata share of the fees and expenses incurred indirectly through its ownership in other investment companies, such as business development companies (“BDCs”). BDC expenses are similar to the expenses paid by any operating company held by the Fund. They are not direct costs paid by the Fund shareholders and are not used to calculate the Fund’s net asset value. They have no impact on the costs associated with fund operations. This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S & P 600 Small Cap ETF
MANAGEMENT FEES		0.20%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
ACQUIRED FUND FEES AND EXPENSES	[2]	0.04%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	0.24%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S & P 600 Small Cap ETF	25	77	135	306

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P SmallCap 600 Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index measures the performance of the small-capitalization sector in the U.S. equity market. The selection universe for the Index includes all U.S. common equities, including BDCs, listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $350 million and $1.6 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is float-adjusted, market capitalization weighted and changes to the Index are made on an as-needed basis. As of September 30, 2013, the Index was comprised of 600 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

SMALL CAP RISK:  Small-sized companies may be more volatile and more likely than large- and mid-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of small companies could trail the returns on investments in stocks of larger companies.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 26.04% (Q2 2009)
Lowest Quarterly Return: -26.84% (Q4 2008)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund’s investment strategy sought to track the total return performance of an index different from the S&P SmallCap 600 Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund’s prior investment strategy to track a different benchmark index.

Average Annual Total Returns	ONE YEAR	FIVE YEARS	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S & P 600 Small Cap ETF	16.14%	5.68%	6.97%	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF RETURN AFTER TAXES ON DISTRIBUTIONS	15.71%	5.31%	6.58%	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	10.76%	4.72%	5.91%	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF S&P SMALLCAP 600 INDEX (reflects no deduction for fees, expenses or taxes)	16.33%	5.13%	5.79%	Nov. 08, 2005

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] "Acquired Fund Fees and Expenses" are not included in the Fund's financial statements, which provide a clearer picture of a fund's actual operating costs.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 28.48%.

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SPDR(R) S&P(R) Telecom ETF

SPDR^® S&P^® Telecom ETF

INVESTMENT OBJECTIVE

The SPDR S&P Telecom ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the telecommunications segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Telecom ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Telecom ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Telecom Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the telecommunications industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 54 stocks.

Should the Index not contain the required minimum of 35 qualifying companies, it may contain members of the Communications Equipment sub-industry.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

TELECOMMUNICATIONS SECTOR RISK:  The Fund’s assets will generally be concentrated in the telecommunications industry, which means the Fund will be more affected by the performance of the telecommunications industry versus a fund that was more diversified. The telecommunications industry is subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals or the enactment of new adverse regulatory requirements may adversely affect the business of the telecommunications companies. The telecommunications industry can also be significantly affected by intense competition, including competition with alternative technologies such as wireless communications, product compatibility, consumer preferences, rapid product obsolescence and research and development of new products. Technological innovations may make the products and services of telecommunications companies obsolete. Other risks include uncertainties resulting from such companies’ diversification into new domestic and international businesses, as well as agreements by any such companies linking future rate increases to inflation or other factors not directly related to the actual operating profits of the enterprise.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 11.65% (Q1 2012)
Lowest Quarterly Return: -11.54% (Q2 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Telecom ETF	11.97%	(3.90%)	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF RETURN AFTER TAXES ON DISTRIBUTIONS	11.15%	(4.33%)	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	8.16%	(3.45%)	Jan. 26, 2011
SPDR(R) S&P(R) Telecom ETF S&P TELECOM SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	12.47%	(3.56%)	Jan. 26, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 14.90%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) Barclays International Corporate Bond ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® Barclays International Corporate Bond ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR Barclays International Corporate Bond ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the investment grade corporate sector of the global bond market outside of the United States.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 37% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	37.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the Barclays Global Aggregate ex-USD >$1B: Corporate Bond Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, State Street Global Advisors Limited (“SSgA LTD” or the “Sub-Adviser”), the investment sub-adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities that the Sub-Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund). The Fund may also enter into forward currency exchange contracts for hedging and/or investment purposes. Swaps and futures contracts may be used by the Fund in seeking performance that corresponds to its Index and in managing cash flows. The Index is designed to be a broad based measure of the global investment grade, fixed rate, fixed income corporate markets outside the United States. The Index is part of the Barclays Global ex-USD Aggregate Bond Index. The securities in the Index must have a minimum $1 billion USD equivalent market capitalization outstanding and at least 1 year remaining. Securities must be fixed rate, although zero coupon bonds and step-ups are permitted. Additionally, securities must be rated investment grade (Baa3/BBB-/BBB- or better) using the middle rating from Moody’s Investors Service, Inc., Fitch Inc., or Standard & Poor’s, Inc. after dropping the highest and lowest available ratings. If only two agencies rate a security, then the more conservative (lower) rating will be used. If only one rating agency rates a security, then that one rating will be used. Excluded from the Index are subordinated debts, convertible securities, floating-rate notes, fixed-rate perpetuals, warrants, linked bonds, and structured products. The Index is market capitalization weighted and the securities in the Index are updated on the last business day of each month. As of September 30, 2013, there were approximately 534 securities in the Index and the modified adjusted duration of securities in the Index was approximately 4.72 years. As of September 30, 2013, the following countries were represented in the Index: Australia, Belgium, Canada, Denmark, France, Germany, Hong Kong, Israel, Italy, Japan, Mexico, the Netherlands, Norway, Spain, Sweden, Switzerland, the United Kingdom and the United States. The Index is sponsored by Barclays, Inc. (the “Index Provider”) which is not affiliated with the Fund, the Adviser or the Sub-Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Sub-Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income. DERIVATIVES RISK:  A derivative is a financial contract the value of which depends on, or is derived from, the value of a financial asset (such as stock, bond or currency), a physical asset (such as gold) or a market index (such as the S&P 500 Index). The Fund may invest in swaps, futures contracts and forward foreign currency contracts. Swaps are contracts in which one party agrees to make periodic payments to the other party based on the change in market value or level of a specified rate, index or asset in return for payments based on the return of a different specified rate, index or asset. Futures contracts generally provide for the future sale by one party and purchase by another party of a specified commodity or security at a specified future time and at a specified price. Forward foreign currency contracts involve an obligation to purchase or sell a specific amount of currency at a future date or date range at a specific price, thereby fixing the exchange rate for a specified time in the future. When used for hedging purposes, forward foreign currency contracts tend to limit any potential gain that may be realized if the value of the Fund’s foreign holdings increases because of currency fluctuations. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and thus a Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities. FOREIGN INVESTMENT RISK:  Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in securities issued by entities based outside the U.S. pose distinct risks since political and economic events unique to a country or region will affect those markets and their issuers. Further, such entities and/or their securities may also be affected by currency controls; different accounting, auditing, financial reporting, and legal standards and practices; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. In addition, the value of the currency of the country in which the Fund has invested could decline relative to the value of the U.S. dollar, which may affect the value of the investment to U.S. investors. These risks may be heightened in connection with investments in developing or emerging countries. GEOGRAPHIC RISK:  Funds that are less diversified across countries or geographic regions are generally riskier than more geographically diversified funds. For example, a Fund that focuses on a single country (e.g., China or Japan), or a specific region (e.g., the Middle East or African countries) is more exposed to that country’s or region’s economic cycles, currency exchange rates, stock market valuations and political risks compared with a more geographically diversified fund. The economies and financial markets of certain regions, such as Latin America, Asia or Eastern Europe, can be interdependent and may decline all at the same time. EUROPE:  Developed and emerging market countries in Europe will be significantly affected by the fiscal and monetary controls of the European Monetary Union. Changes in regulations on trade, decreasing imports or exports, changes in the exchange rate of the euro and recessions among European countries may have a significant adverse effect on the economies of other European countries including those of Eastern Europe. The markets in Eastern Europe remain relatively undeveloped and can be particularly sensitive to political and economic developments. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (year ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 6.77% (Q1 2012) Lowest Quarterly Return: -6.36% (Q3 2011)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) Barclays International Corporate Bond ETF | SPDR(R) Barclays International Corporate Bond ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.55%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.55%
YEAR 1	rr_ExpenseExampleYear01	$ 56
YEAR 3	rr_ExpenseExampleYear03	176
YEAR 5	rr_ExpenseExampleYear05	307
YEAR 10	rr_ExpenseExampleYear10	$ 689
2011	rr_AnnualReturn2011	0.44%	[2]
2012	rr_AnnualReturn2012	12.98%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	2.74%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	6.77%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(6.36%)
ONE YEAR	rr_AverageAnnualReturnYear01	12.98%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	8.61%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) Barclays International Corporate Bond ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	12.50%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	7.79%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) Barclays International Corporate Bond ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	8.44%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	6.89%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF | BARCLAYS GLOBAL AGGREGATE EX-USD >$1B: CORPORATE BOND INDEX (reflects no deductions for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	13.44%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	9.13%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	May 19, 2010

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 2.74%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) Global Dow ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® Global Dow ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR Global Dow ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of multinational blue-chip issuers.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 13% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	13.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of The Global Dow (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA FM). The Index is made up of 150 constituents from around the world selected by an Averages Committee comprised of the managing editor of the Wall Street Journal, the head of Dow Jones Indexes research and the head of CME Group research. The 150 companies are selected not just based on size and reputation, but also on their promise of future growth. The Index has been designed to cover both developed and emerging countries. The Index is equal weighted and will be reset to equal weights annually each September. As of September 30, 2013, the Index was comprised of 150 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (“Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. FOREIGN SECURITIES RISK:  Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in securities issued by entities based outside the U.S. pose distinct risks since political and economic events unique to a country or region will affect those markets and their issuers. Further, such entities and/or their securities may also be affected by currency controls; different accounting, auditing, financial reporting, and legal standards and practices; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. These risks may be heightened in connection with investments in developing or emerging countries. EMERGING MARKETS RISK:  Investment in emerging markets subjects the Fund to a greater risk of loss than investments in a developed market. This is due to, among other things, greater market volatility, lower trading volume, political and economic instability, high levels of inflation, deflation or currency devaluation, greater risk of market shut down, and more governmental limitations on foreign investment policy than those typically found in a developed market. In addition, the financial stability of issuers (including governments) in emerging market countries may be more precarious than in other countries. As a result, there will tend to be an increased risk of price volatility in a Fund’s investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar. Settlement practices for transactions in foreign markets may differ from those in U.S. markets. Such differences include delays beyond periods customary in the United States and practices, such as delivery of securities prior to receipt of payment, which increase the likelihood of a “failed settlement.” Failed settlements can result in losses to the Fund. For these and other reasons, investments in emerging markets are often considered speculative. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 15.94% (Q2 2009) Lowest Quarterly Return: -19.80% (Q4 2008)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective May 2, 2011, the Fund changed its benchmark index to The Global Dow from the Dow Jones Global Titans 50 Index U.S. Close. The Fund’s performance prior to May 2, 2011 is therefore based on the Fund’s prior investment strategy to track a different benchmark index.
SPDR(R) Global Dow ETF | SPDR(R) Global Dow ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.50%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.50%
YEAR 1	rr_ExpenseExampleYear01	$ 51
YEAR 3	rr_ExpenseExampleYear03	160
YEAR 5	rr_ExpenseExampleYear05	280
YEAR 10	rr_ExpenseExampleYear10	$ 628
2003	rr_AnnualReturn2003	24.94%	[2]
2004	rr_AnnualReturn2004	7.32%	[2]
2005	rr_AnnualReturn2005	2.90%	[2]
2006	rr_AnnualReturn2006	19.83%	[2]
2007	rr_AnnualReturn2007	5.95%	[2]
2008	rr_AnnualReturn2008	(37.73%)	[2]
2009	rr_AnnualReturn2009	23.40%	[2]
2010	rr_AnnualReturn2010	4.73%	[2]
2011	rr_AnnualReturn2011	(11.58%)	[2]
2012	rr_AnnualReturn2012	13.54%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	17.65%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	15.94%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(19.80%)
ONE YEAR	rr_AverageAnnualReturnYear01	13.54%
FIVE YEARS	rr_AverageAnnualReturnYear05	(4.17%)
TEN YEARS	rr_AverageAnnualReturnYear10	3.53%
SPDR(R) Global Dow ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) Global Dow ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	13.12%
FIVE YEARS	rr_AverageAnnualReturnYear05	(4.57%)
TEN YEARS	rr_AverageAnnualReturnYear10	3.16%
SPDR(R) Global Dow ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) Global Dow ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	9.32%
FIVE YEARS	rr_AverageAnnualReturnYear05	(3.54%)
TEN YEARS	rr_AverageAnnualReturnYear10	3.04%
SPDR(R) Global Dow ETF | THE GLOBAL DOW (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	13.41%	[3]
FIVE YEARS	rr_AverageAnnualReturnYear05		[3]
TEN YEARS	rr_AverageAnnualReturnYear10		[3]
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Nov. 09, 2008	[3]
SPDR(R) Global Dow ETF | DOW JONES GLOBAL TITANS 50 INDEX U.S. CLOSE (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	5.43%
FIVE YEARS	rr_AverageAnnualReturnYear05	(3.21%)
TEN YEARS	rr_AverageAnnualReturnYear10	4.32%

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 17.65%.

[3] The Global Dow inception date is November 9, 2008.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) S & P 600 Small Cap ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® S&P 600 Small Cap ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR S&P 600 Small Cap ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of small capitalization exchange traded U.S. equity securities.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). “Acquired Fund Fees and Expenses” reflect the Fund’s pro rata share of the fees and expenses incurred indirectly through its ownership in other investment companies, such as business development companies (“BDCs”). BDC expenses are similar to the expenses paid by any operating company held by the Fund. They are not direct costs paid by the Fund shareholders and are not used to calculate the Fund’s net asset value. They have no impact on the costs associated with fund operations. This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	11.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the S&P SmallCap 600 Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index measures the performance of the small-capitalization sector in the U.S. equity market. The selection universe for the Index includes all U.S. common equities, including BDCs, listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $350 million and $1.6 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is float-adjusted, market capitalization weighted and changes to the Index are made on an as-needed basis. As of September 30, 2013, the Index was comprised of 600 stocks. The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. SMALL CAP RISK:  Small-sized companies may be more volatile and more likely than large- and mid-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of small companies could trail the returns on investments in stocks of larger companies. EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 26.04% (Q2 2009) Lowest Quarterly Return: -26.84% (Q4 2008)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund’s investment strategy sought to track the total return performance of an index different from the S&P SmallCap 600 Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund’s prior investment strategy to track a different benchmark index.
SPDR(R) S & P 600 Small Cap ETF | SPDR(R) S & P 600 Small Cap ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.20%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.04%	[2]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.24%	[2]
YEAR 1	rr_ExpenseExampleYear01	$ 25
YEAR 3	rr_ExpenseExampleYear03	77
YEAR 5	rr_ExpenseExampleYear05	135
YEAR 10	rr_ExpenseExampleYear10	$ 306
2006	rr_AnnualReturn2006	16.59%	[3]
2007	rr_AnnualReturn2007	1.69%	[3]
2008	rr_AnnualReturn2008	(37.47%)	[3]
2009	rr_AnnualReturn2009	41.21%	[3]
2010	rr_AnnualReturn2010	27.38%	[3]
2011	rr_AnnualReturn2011	0.92%	[3]
2012	rr_AnnualReturn2012	16.14%	[3]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	28.48%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	26.04%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(26.84%)
ONE YEAR	rr_AverageAnnualReturnYear01	16.14%
FIVE YEARS	rr_AverageAnnualReturnYear05	5.68%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	6.97%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) S & P 600 Small Cap ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	15.71%
FIVE YEARS	rr_AverageAnnualReturnYear05	5.31%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	6.58%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) S & P 600 Small Cap ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	10.76%
FIVE YEARS	rr_AverageAnnualReturnYear05	4.72%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	5.91%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Nov. 08, 2005
SPDR(R) S & P 600 Small Cap ETF | S&P SMALLCAP 600 INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	16.33%
FIVE YEARS	rr_AverageAnnualReturnYear05	5.13%
SINCE INCEPTION	rr_AverageAnnualReturnSinceInception	5.79%
INCEPTION DATE	rr_AverageAnnualReturnInceptionDate	Nov. 08, 2005

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] "Acquired Fund Fees and Expenses" are not included in the Fund's financial statements, which provide a clearer picture of a fund's actual operating costs.

[3] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 28.48%.

XML

SPDR Barclays Short Term High Yield Bond ETF

SPDR^® Barclays Short Term High Yield Bond ETF

INVESTMENT OBJECTIVE

The SPDR Barclays Short Term High Yield Bond ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the U.S. high yield short term corporate bond market.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR Barclays Short Term High Yield Bond ETF
MANAGEMENT FEES		0.40%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.40%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR Barclays Short Term High Yield Bond ETF	41	128	224	505

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 54% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the Barclays US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities that the Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index is designed to measure the performance of short-term publicly issued U.S. dollar-denominated high yield corporate bonds. High yield securities are generally rated below investment-grade and are commonly referred to as “junk” bonds. The Index includes publicly issued U.S. dollar denominated, non-investment-grade, fixed rate, taxable corporate bonds that have a remaining maturity of less than 5 years regardless of optionality, are rated between Caa3/CCC-/CCC- and Ba1/BB+/BB+ using the middle rating of Moody’s Investors Service, Inc., Fitch, Inc., or Standard & Poor’s, Inc., respectively, and have at least a $350 million outstanding par value. The Index includes only corporate sectors. The corporate sectors are Industrial, Utility and Financial Institutions. Excluded from the Index are non-corporate bonds, structured notes with embedded swaps or other special features, bonds with equity-type features (e.g., warrants, convertibility), floating-rate securities and securities that move from fixed to floating-rate, Emerging Market Bonds, defaulted bonds, original issue zero coupon bonds, private placements and payment in kind securities. The Index is issuer-capped and the securities in the Index are updated on the index rebalancing date. As of September 30, 2013, there were approximately 399 securities in the Index and the modified adjusted duration of securities in the Index was approximately 2.14 years.

The Index is sponsored by Barclays, Inc. (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index and the relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income.

HIGH YIELD SECURITIES RISK:  Securities rated below investment grade, commonly referred to as “junk bonds,” include bonds that are rated Ba1/BB+/BB+ or below by Moody’s Investors Service, Inc., Fitch, Inc., or Standard & Poor’s, Inc., respectively, or unrated securities considered to be of equivalent quality by the Adviser, and may involve greater risks than securities in higher rating categories. Such bonds are regarded as speculative in nature, involve greater risk of default by the issuing entity and may be subject to greater market fluctuations than higher-rated fixed income securities. They are usually issued by companies without long track records of sales and earnings, or by those companies with questionable credit strength. The retail secondary market for these “junk bonds” may be less liquid than that of higher-rated securities and adverse conditions could make it difficult at times to sell certain securities or could result in lower prices than those used in calculating the Fund’s net asset value. When the Fund invests in “junk bonds,” it may also be subject to greater credit risk because it may invest in debt securities issued in connection with corporate restructuring by highly leveraged issuers or in debt securities not current in the payment of interest or principal or in default.

INDUSTRIAL SECTOR RISK:  Industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the government budgets. Transportation securities, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.

UTILITIES SECTOR RISK:  The rates that traditional regulated utility companies may charge their customers generally are subject to review and limitation by governmental regulatory commissions. Although rate changes of a utility usually fluctuate in approximate correlation with financing costs due to political and regulatory factors, rate changes ordinarily occur only following a delay after the changes in financing costs. This factor will tend to favorably affect a regulated utility company’s earnings and dividends in times of decreasing costs, but conversely, will tend to adversely affect earnings and dividends when costs are rising. The value of regulated utility debt securities (and, to a lesser extent, equity securities) tends to have an inverse relationship to the movement of interest rates. Certain utility companies have experienced full or partial deregulation in recent years. These utility companies are frequently more similar to industrial companies in that they are subject to greater competition and have been permitted by regulators to diversify outside of their original geographic regions and their traditional lines of business. These opportunities may permit certain utility companies to earn more than their traditional regulated rates of return. Some companies, however, may be forced to defend their core business and may be less profitable.

Among the risks that may affect utility companies are the following: risks of increases in fuel and other operating costs; the high cost of borrowing to finance capital construction during inflationary periods; restrictions on operations and increased costs and delays associated with compliance with environmental and nuclear safety regulations; and the difficulties involved in obtaining natural gas for resale or fuel for generating electricity at reasonable prices. Other risks include those related to the construction and operation of nuclear power plants; the effects of energy conservation and the effects of regulatory changes.

FINANCIAL SECTOR RISK:  Financial services companies are subject to extensive governmental regulation which may limit both the amounts and types of loans and other financial commitments they can make, and the interest rates and fees they can charge. Profitability is largely dependent on the availability and cost of capital funds, and can fluctuate significantly when interest rates change or due to increased competition. In addition, the recent deterioration of the credit markets generally has caused an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Recent events in the financial sector have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Numerous financial services companies have experienced substantial declines in the valuations of their assets, taken action to raise capital (such as the issuance of debt or equity securities), or even ceased operations. These actions have caused the securities of many financial services companies to experience a dramatic decline in value. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Insurance companies may be subject to severe price competition.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns based on net assets and comparing the Fund’s performance to the Index.

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR Barclays 1-10 Year TIPS ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® Barclays 1-10 Year TIPS ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR Barclays 1-10 Year TIPS ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the 1-10 year inflation protected sector of the United States Treasury market.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the period from the commencement of the Fund’s operations (May 29, 2013) to the end of the most recent fiscal year, the Fund’s portfolio turnover rate was 1% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	1.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the Barclays 1-10 Year Government Inflation-linked Bond Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities the Adviser determines have economic characteristics substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index is designed to measure the performance of the inflation protected public obligations of the U.S. Treasury commonly known as “TIPS” that have a remaining maturity greater than or equal to 1 year and less than 10 years. TIPS are securities issued by the U.S. Treasury that are designed to provide inflation protection to investors. The Index includes publicly issued, TIPS that have at least 1 year remaining to maturity and less than 10 years on index rebalancing date, with an issue size equal to or in excess of $500 million. The total amount outstanding for each issue is reflected, there are no adjustments made for sums held in the Federal Reserve System Open Market Account (SOMA) account. Bonds must be capital-indexed and linked to a domestic inflation index. The securities must be issued by the US Government and must be denominated in U.S. dollars and pay coupon and principal in U.S. dollars. New bonds/ reopening’s entering the Index must settle on or before the index rebalancing date. The Index is rebalanced on the last calendar date of each month. As of September 30, 2013, the Index was comprised of 22 securities. The Index is sponsored by Barclay’s, Inc. (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index and relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. INFLATION PROTECTED SECURITIES RISK:  Inflation protected securities, such as TIPS, generally fluctuate in response to changes in “real” interest rates. Real interest rates represent nominal (stated) interest rates reduced by the expected impact of inflation. Generally, an inflation protected security’s value will decrease when real interest rates rise and increase when real interest rates fall. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal and/or interest is adjusted for inflation. During periods of “deflation,” the principal and income of an inflation protected security may decline in price, which could result in losses for the Fund. DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns based on net assets and comparing the Fund’s performance to the Index.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund has not yet completed a full calendar year of investment operations and therefore does not have any performance history.
SPDR Barclays 1-10 Year TIPS ETF | SPDR Barclays 1-10 Year TIPS ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.15%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none	[2]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.15%
YEAR 1	rr_ExpenseExampleYear01	$ 15
YEAR 3	rr_ExpenseExampleYear03	$ 48

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] "Other Expenses" are based on estimated amounts for the current fiscal year.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013
SPDR(R) Morgan Stanley Technology ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	SPDR® Morgan Stanley Technology ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The SPDR Morgan Stanley Technology ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of publicly traded electronics-based technology companies.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 27% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	27.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	THE FUND’S PRINCIPAL INVESTMENT STRATEGY
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In seeking to track the performance of the Morgan Stanley Technology Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index. Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). The Index is composed purely of electronics-based technology companies. The Index was the first listed broad-market technology barometer dedicated exclusively to the electronics-based technology industry. The Index comprises companies drawn from the following technology sub-sectors: computer services; design software; server software, PC software and new media; networking and telecom equipment; server hardware, PC hardware and peripherals; specialized systems; and semiconductors. The New York Stock Exchange (“NYSE”) calculates the Index. Morgan Stanley & Co. Incorporated acts as consultant to the NYSE in connection with NYSE’s maintenance of the Index. The Index is equal-dollar-weighted to ensure that each of its component securities is represented in approximate equal dollar value. To ensure that each component stock continues to represent approximate equal market value in the Index, adjustments, if necessary, are made annually after the close of trading on the third Friday of December. As of September 30, 2013, the Index was comprised of 35 stocks. The Index is sponsored by Morgan Stanley & Co. Incorporated (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. TECHNOLOGY SECTOR RISK:  The Fund’s assets will generally be concentrated in the technology industry, which means the Fund will be more affected by the performance of the technology industry versus a fund that was more diversified. The Fund is subject to the risk that market or economic factors impacting technology companies and companies that rely heavily on technology advances could have a major effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. ELECTRONICS INDUSTRY RISK:  The electronics industry can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of industry participants depends in substantial part on the timely and successful introduction of new products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results. Companies in the electronics industry may rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by such companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology. EQUITY INVESTING RISK:   An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	http://www.spdrs.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	ANNUAL TOTAL RETURN (years ended 12/31)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarterly Return: 27.51% (Q2 2003) Lowest Quarterly Return: -28.11% (Q4 2008)
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.
SPDR(R) Morgan Stanley Technology ETF | SPDR(R) Morgan Stanley Technology ETF
Risk/Return:	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.50%
DISTRIBUTION AND SERVICE (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none	[1]
OTHER EXPENSES	rr_OtherExpensesOverAssets	none
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	0.50%
YEAR 1	rr_ExpenseExampleYear01	$ 51
YEAR 3	rr_ExpenseExampleYear03	160
YEAR 5	rr_ExpenseExampleYear05	280
YEAR 10	rr_ExpenseExampleYear10	$ 628
2003	rr_AnnualReturn2003	65.05%	[2]
2004	rr_AnnualReturn2004	6.56%	[2]
2005	rr_AnnualReturn2005	2.85%	[2]
2006	rr_AnnualReturn2006	8.83%	[2]
2007	rr_AnnualReturn2007	9.73%	[2]
2008	rr_AnnualReturn2008	(44.91%)	[2]
2009	rr_AnnualReturn2009	70.21%	[2]
2010	rr_AnnualReturn2010	15.41%	[2]
2011	rr_AnnualReturn2011	(10.60%)	[2]
2012	rr_AnnualReturn2012	17.61%	[2]
Year to Date Return, Label	rr_YearToDateReturnLabel	Fund’s Calendar Year-To-Date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	20.74%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarterly Return:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2003
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	27.51%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarterly Return:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(28.11%)
ONE YEAR	rr_AverageAnnualReturnYear01	17.61%
FIVE YEARS	rr_AverageAnnualReturnYear05	2.62%
TEN YEARS	rr_AverageAnnualReturnYear10	9.41%
SPDR(R) Morgan Stanley Technology ETF | RETURN AFTER TAXES ON DISTRIBUTIONS | SPDR(R) Morgan Stanley Technology ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	17.44%
FIVE YEARS	rr_AverageAnnualReturnYear05	2.52%
TEN YEARS	rr_AverageAnnualReturnYear10	9.35%
SPDR(R) Morgan Stanley Technology ETF | RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES | SPDR(R) Morgan Stanley Technology ETF
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	11.67%
FIVE YEARS	rr_AverageAnnualReturnYear05	2.23%
TEN YEARS	rr_AverageAnnualReturnYear10	8.38%
SPDR(R) Morgan Stanley Technology ETF | MORGAN STANLEY TECHNOLOGY INDEX (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
ONE YEAR	rr_AverageAnnualReturnYear01	18.16%
FIVE YEARS	rr_AverageAnnualReturnYear05	3.06%
TEN YEARS	rr_AverageAnnualReturnYear10	9.92%

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[2] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 20.74%.

XML

SPDR(R) S&P(R) Aerospace & Defense ETF

SPDR^® S&P^® Aerospace & Defense ETF

INVESTMENT OBJECTIVE

The SPDR S&P Aerospace & Defense ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index derived from the aerospace and defense segment of a U.S. total market composite index.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) S&P(R) Aerospace & Defense ETF
MANAGEMENT FEES		0.35%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.35%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) S&P(R) Aerospace & Defense ETF	36	113	197	443

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the S&P Aerospace & Defense Select Industry Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser).

The Index represents the aerospace and defense industry group of the S&P Total Market Index (“S&P TMI”). The Index is one of twenty-five (25) of the S&P Select Industry Indices (the “Select Industry Indices”), each designed to measure the performance of a narrow sub-industry or group of sub-industries determined based on the Global Industry Classification Standards (“GICS”). Membership in the Select Industry Indices is based on the GICS classification, as well as liquidity and market cap requirements. Companies in the Select Industry Indices are classified based primarily on revenues; however, earnings and market perception are also considered. The Index consists of the S&P TMI constituents belonging to the particular GICS sub-industry or group of sub-industries that satisfy the following criteria: (i) have a float-adjusted market capitalization above $500 million with a float-adjusted liquidity ratio (defined by dollar value traded over the previous 12 months divided by the float-adjusted market capitalization as of the index rebalancing reference date) above 90% or have a float-adjusted market capitalization above $400 million with a float-adjusted liquidity ratio (as defined above) above 150%; and (ii) are U.S. based companies. The length of time to evaluate liquidity is reduced to the available trading period for initial public offerings or spin-offs that do not have 12 months of trading history. If there are fewer than 35 stocks, stocks from a supplementary list of highly correlated sub-industries that meet the market capitalization and liquidity thresholds are included in order of their float-adjusted market capitalization. The market capitalization threshold may be relaxed to ensure that there are at least 22 stocks in the Index as of the rebalancing effective date. Existing Index constituents are removed at the quarterly rebalancing effective date if either their float-adjusted market capitalization falls below $300 million or their float-adjusted liquidity ratio falls below 50%. The market capitalization threshold and the liquidity threshold are each reviewed from time to time based on market conditions. Rebalancing occurs on the third Friday of the quarter ending month. The S&P TMI tracks all the U.S. common stocks listed on the NYSE (including NYSE Arca and NYSE Amex), the NASDAQ Global Select Market, the NASDAQ Select Market and the NASDAQ Capital Market. The Index is an equal weighted market cap index. As of September 30, 2013, the Index was comprised of 35 stocks.

The Index is sponsored by S&P Dow Jones Indices LLC (the “Index Provider”) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

AEROSPACE AND DEFENSE SECTOR RISK:  The Fund’s assets will generally be concentrated in the aerospace and defense industry, which means the Fund will be more affected by the performance of the aerospace and defense industry versus a fund that was more diversified. The aerospace and defense industry can be significantly affected by government aerospace and defense regulation and spending policies because companies involved in this industry rely to a significant extent on U.S. (and other) government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets.

INDUSTRIAL SECTOR RISK:  Stock prices for industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrial sector, can be significantly affected by government spending policies because companies involved in this industry rely to a significant extent on U.S. and foreign government demand for their products and services. Thus, the financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by governmental defense spending policies which are typically under pressure from efforts to control the U.S. (and other) government budgets. Transportation stocks, a component of the industrial sector, are cyclical and have occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements and insurance costs.

EQUITY INVESTING RISK:  An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund’s performance for the most recent calendar year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (years ended 12/31)

Highest Quarterly Return: 10.80% (Q1 2012)
Lowest Quarterly Return: -3.79% (Q2 2012)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) S&P(R) Aerospace & Defense ETF	17.42%	23.85%	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF RETURN AFTER TAXES ON DISTRIBUTIONS	16.86%	23.34%	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	11.68%	20.21%	Sep. 28, 2011
SPDR(R) S&P(R) Aerospace & Defense ETF S&P AEROSPACE & DEFENSE SELECT INDUSTRY INDEX (reflects no deduction for fees, expenses or taxes)	17.86%	24.27%	Sep. 28, 2011

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made; however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund’s Calendar Year-To-Date return was 34.71%.

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Document Type	dei_DocumentType	Other
Document Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2013
Registrant Name	dei_EntityRegistrantName	SPDR SERIES TRUST
Central Index Key	dei_EntityCentralIndexKey	0001064642
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Document Creation Date	dei_DocumentCreationDate	Oct. 31, 2013
Document Effective Date	dei_DocumentEffectiveDate	Oct. 31, 2013
Prospectus Date	rr_ProspectusDate	Oct. 31, 2013

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SPDR(R) Barclays International Corporate Bond ETF

SPDR^® Barclays International Corporate Bond ETF

INVESTMENT OBJECTIVE

The SPDR Barclays International Corporate Bond ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the investment grade corporate sector of the global bond market outside of the United States.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund’s Shares.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses		SPDR(R) Barclays International Corporate Bond ETF
MANAGEMENT FEES		0.55%
DISTRIBUTION AND SERVICE (12b-1) FEES	[1]	none
OTHER EXPENSES		none
TOTAL ANNUAL FUND OPERATING EXPENSES		0.55%

EXAMPLE:

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	YEAR 1	YEAR 3	YEAR 5	YEAR 10
SPDR(R) Barclays International Corporate Bond ETF	56	176	307	689

PORTFOLIO TURNOVER:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 37% of the average value of its portfolio.

THE FUND’S PRINCIPAL INVESTMENT STRATEGY

In seeking to track the performance of the Barclays Global Aggregate ex-USD >$1B: Corporate Bond Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, State Street Global Advisors Limited (“SSgA LTD” or the “Sub-Adviser”), the investment sub-adviser to the Fund, may invest the Fund’s assets in a subset of securities in the Index or may invest the Fund’s assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index.

Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index or in securities that the Sub-Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the Index. The Fund will provide shareholders with at least 60 days’ notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in debt securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (“SSgA FM” or the “Adviser”), the investment adviser to the Fund). The Fund may also enter into forward currency exchange contracts for hedging and/or investment purposes. Swaps and futures contracts may be used by the Fund in seeking performance that corresponds to its Index and in managing cash flows.

The Index is designed to be a broad based measure of the global investment grade, fixed rate, fixed income corporate markets outside the United States. The Index is part of the Barclays Global ex-USD Aggregate Bond Index. The securities in the Index must have a minimum $1 billion USD equivalent market capitalization outstanding and at least 1 year remaining. Securities must be fixed rate, although zero coupon bonds and step-ups are permitted. Additionally, securities must be rated investment grade (Baa3/BBB-/BBB- or better) using the middle rating from Moody’s Investors Service, Inc., Fitch Inc., or Standard & Poor’s, Inc. after dropping the highest and lowest available ratings. If only two agencies rate a security, then the more conservative (lower) rating will be used. If only one rating agency rates a security, then that one rating will be used. Excluded from the Index are subordinated debts, convertible securities, floating-rate notes, fixed-rate perpetuals, warrants, linked bonds, and structured products. The Index is market capitalization weighted and the securities in the Index are updated on the last business day of each month. As of September 30, 2013, there were approximately 534 securities in the Index and the modified adjusted duration of securities in the Index was approximately 4.72 years. As of September 30, 2013, the following countries were represented in the Index: Australia, Belgium, Canada, Denmark, France, Germany, Hong Kong, Israel, Italy, Japan, Mexico, the Netherlands, Norway, Spain, Sweden, Switzerland, the United Kingdom and the United States.

The Index is sponsored by Barclays, Inc. (the “Index Provider”) which is not affiliated with the Fund, the Adviser or the Sub-Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index.

PRINCIPAL RISKS OF INVESTING IN THE FUND

As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.

PASSIVE STRATEGY/INDEX RISK:  The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy.

INDEX TRACKING RISK:  While the Sub-Adviser seeks to track the performance of the Index as closely as possible (i.e., achieve a high degree of correlation with the Index), the Fund’s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.

DEBT SECURITIES INVESTING RISK:  The value of the debt securities may increase or decrease as a result of the following: market fluctuations, increases in interest rates, inability of issuers to repay principal and interest or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. This may result in a reduction in income from debt securities income.

DERIVATIVES RISK:  A derivative is a financial contract the value of which depends on, or is derived from, the value of a financial asset (such as stock, bond or currency), a physical asset (such as gold) or a market index (such as the S&P 500 Index). The Fund may invest in swaps, futures contracts and forward foreign currency contracts. Swaps are contracts in which one party agrees to make periodic payments to the other party based on the change in market value or level of a specified rate, index or asset in return for payments based on the return of a different specified rate, index or asset. Futures contracts generally provide for the future sale by one party and purchase by another party of a specified commodity or security at a specified future time and at a specified price. Forward foreign currency contracts involve an obligation to purchase or sell a specific amount of currency at a future date or date range at a specific price, thereby fixing the exchange rate for a specified time in the future. When used for hedging purposes, forward foreign currency contracts tend to limit any potential gain that may be realized if the value of the Fund’s foreign holdings increases because of currency fluctuations. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and thus a Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.

FOREIGN INVESTMENT RISK:  Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in securities issued by entities based outside the U.S. pose distinct risks since political and economic events unique to a country or region will affect those markets and their issuers. Further, such entities and/or their securities may also be affected by currency controls; different accounting, auditing, financial reporting, and legal standards and practices; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. In addition, the value of the currency of the country in which the Fund has invested could decline relative to the value of the U.S. dollar, which may affect the value of the investment to U.S. investors. These risks may be heightened in connection with investments in developing or emerging countries.

GEOGRAPHIC RISK:  Funds that are less diversified across countries or geographic regions are generally riskier than more geographically diversified funds. For example, a Fund that focuses on a single country (e.g., China or Japan), or a specific region (e.g., the Middle East or African countries) is more exposed to that country’s or region’s economic cycles, currency exchange rates, stock market valuations and political risks compared with a more geographically diversified fund. The economies and financial markets of certain regions, such as Latin America, Asia or Eastern Europe, can be interdependent and may decline all at the same time.

EUROPE:  Developed and emerging market countries in Europe will be significantly affected by the fiscal and monetary controls of the European Monetary Union. Changes in regulations on trade, decreasing imports or exports, changes in the exchange rate of the euro and recessions among European countries may have a significant adverse effect on the economies of other European countries including those of Eastern Europe. The markets in Eastern Europe remain relatively undeveloped and can be particularly sensitive to political and economic developments.

NON-DIVERSIFICATION RISK:  The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund’s performance may be disproportionately impacted by the performance of relatively few securities.

FUND PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://www.spdrs.com.

ANNUAL TOTAL RETURN (year ended 12/31)

Highest Quarterly Return: 6.77% (Q1 2012)
Lowest Quarterly Return: -6.36% (Q3 2011)

AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/12)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.

Average Annual Total Returns	ONE YEAR	SINCE INCEPTION	INCEPTION DATE
SPDR(R) Barclays International Corporate Bond ETF	12.98%	8.61%	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF RETURN AFTER TAXES ON DISTRIBUTIONS	12.50%	7.79%	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF RETURN AFTER TAXES ON DISTRIBUTIONS AND SALE OF FUND SHARES	8.44%	6.89%	May 19, 2010
SPDR(R) Barclays International Corporate Bond ETF BARCLAYS GLOBAL AGGREGATE EX-USD >$1B: CORPORATE BOND INDEX (reflects no deductions for fees, expenses or taxes)	13.44%	9.13%	May 19, 2010

[1] The Fund has adopted a Distribution and Service (12b-1) Plan pursuant to which payments of up to 0.25% of average daily net assets may be made, however, the Board has determined that no such payments will be made through at least October 31, 2014.

[1] As of September 30, 2013, the Fund's Calendar Year-To-Date return was 2.74%.