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 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. For the most recent fiscal period, the Fund’s portfolio turnover rate was 30.65% of the average value of its portfolio.

Expense Example [Heading]

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Example:

Expense Example by, Year, Caption [Text]

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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 Narrative [Text Block]

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The Fund invests at least 80% of its net assets in the securities of the Underlying Index. Moreover, at least 80% of the Fund’s net assets will be invested in securities that have economic characteristics of the Master Limited Partnership (“MLP”) asset class. The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed.

The Underlying Index is intended to give investors a means of tracking the performance of the energy infrastructure MLP asset class in the United States. As of March 15, 2015, the Underlying Index was composed of 23 MLPs engaged in the transportation, storage, and processing of natural resources ("Midstream MLPs"). The Fund’s investment objective and Underlying Index may be changed without shareholder approval.

The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index.

The Adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued.

The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations that apply to the Fund but not the Underlying Index.

Midstream MLPs are publicly traded partnerships engaged in the transportation, storage and processing of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.

To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.

MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.

Due to the nature of the Fund’s investments, the Fund will not qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended (the “Code”). As a result, the Fund will be taxed as a regular corporation ("C" corporation)for federal income tax purposes.

The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses and taxes, and the performance of the Underlying Index. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy.

The Fund concentrates its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of January 1, 2015, the Fund was concentrated in the Energy Sector.

Risk Narrative [Text Block]

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As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Fund’s Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI").

Asset Class Risk: Securities in the Underlying Index or the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes.

Cash Transaction Risk: Unlike many exchange-traded funds ("ETFs"), the Fund expects to effect redemptions for cash, rather than in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in a more conventional ETF. Because the Fund may effect redemptions for cash, rather than by in-kind distributions, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. Such cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees. In addition, these factors may result in wider spreads between the bid and the offered prices of the Fund’s Shares than for more conventional ETFs.

Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand in a particular sector or industry; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.

Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions.

Industry Specific Risks: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.

Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.

Marine Shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.

Investable Universe of Companies Risk: The investable universe of companies in which the Fund may invest may be limited. If a company no longer meets the Index Provider’s criteria for inclusion in the Underlying Index, the Fund may need to reduce or eliminate its holdings in that company. The reduction or elimination of the Fund’s holdings in the company may have an adverse impact on the liquidity of the Fund’s underlying portfolio holdings and on Fund performance.

Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.

Management Risk: The Fund is subject to the risk that the Adviser’s investment management strategy may cause the Fund to underperform the market or its relevant benchmark or adversely affect the ability of the Fund to achieve its investment objective.

Market Risk: The Fund's NAV could decline over short periods due to short-term market movements and over longer periods during market downturns.

Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to NAV, the shareholder may sustain losses.

MLP Risk: Investments in securities of MLPs involve risks that differ from investments in common stock, including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, and cash flow risks. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.

Non-Correlation Risk: The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints.

Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the 1940 Act. As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds.

Passive Investment Risk: The Fund is not actively managed and the Adviser does not attempt to take defensive positions in declining markets. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, it would not necessarily buy or sell a security unless that security is added or removed, respectively, from the Underlying Index, even if that security generally is underperforming.

Potential Substantial After-Tax Tracking Error From Index Performance: The Fund will be subject to taxation on its taxable income. The NAV of Shares will also be reduced by the accrual of any deferred tax liabilities. The Underlying Index, however, is calculated without any deductions for taxes. As a result, the Fund’s performance could differ significantly from the Underlying Index even if the pretax performance of the Fund and the performance of the Underlying Index are closely correlated. The performance of the Fund may diverge from that of the Underlying Index.

Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.

Risks Related to the Energy Infrastructure Industry: The Fund invests primarily in energy infrastructure companies. Energy infrastructure companies are subject to risks specific to the industry they serve, including, but not limited to, the following:

• reduced volumes of natural gas or other energy commodities available for transporting, processing or storing;

• new construction and acquisition risk, which can limit growth potential;

• a sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;

• changes in the regulatory environment;

• extreme weather;

• rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and

• threats of attack by terrorists.

Small and Mid-Capitalization Companies Risk: Small- and mid-capitalization companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. In addition, these companies are often subject to less analyst coverage and may be in early and less predictable periods of their corporate existences. These companies tend to have smaller revenues, narrower product lines, less management depth and experience, smaller shares of their product or service markets, fewer financial resources and less competitive strength than larger companies.

Tax Risks: Tax risks associated with investments in the Fund include, but are not limited to, the following:

Deferred Tax Liability. Cash distributions from an MLP to the Fund that exceed such Fund’s allocable share of such MLP’s net taxable income are considered a tax-deferred return of capital that will reduce the Fund’s adjusted tax basis in the equity securities of the MLP. These reductions in such Fund’s adjusted tax basis in the MLP equity securities will increase the amount of gain (or decrease the amount of loss) recognized by the Fund on a subsequent sale of the securities. The Fund will accrue deferred income taxes for any future tax liability associated with (i) that portion of MLP distributions considered to be a tax-deferred return of capital as well as (ii) capital appreciation of its investments. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes. The Fund’s accrued deferred tax liability will be reflected each day in the Fund’s NAV. Increases in deferred tax liability will decrease the Fund's NAV. Conversely, decreases in deferred tax liability will increase the Fund's NAV. The Fund will rely to some extent on information provided by the MLPs in which it invests, which is not necessarily timely, to estimate deferred tax liability for purposes of financial statement reporting and determining the Fund's NAV. From time to time, the Adviser will modify the estimates or assumptions regarding the Fund’s deferred tax liability as new information becomes available. The Fund’s estimates regarding its deferred tax liability are made in good faith. However, the daily estimate of the Fund’s deferred tax liability used to calculate the Fund’s NAV could vary significantly from the Fund’s actual tax liability. The Fund will generally compute deferred income taxes based on the federal income tax rate applicable to corporations currently 35% and an assumed rate attributable to state taxes.

MLP Tax Risk. MLPs do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law, or a change in the underlying business mix of a given MLP, could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction in the value of your investment in the Fund and lower income.

Return of Capital Distributions From the Fund Reduce the Tax Basis of Fund Shares. A portion of the Fund’s distributions are expected to be treated as a return of capital for tax purposes. Return of capital distributions are not taxable income to you, but reduce your tax basis in your Fund Shares. Such a reduction in tax basis will result in larger taxable gains and/or lower tax losses on a subsequent sale of Fund Shares. Shareholders who sell their Shares for less than they bought them may still recognize a gain due to the reduction in tax basis. Shareholders who periodically receive the payment of dividends or other distributions consisting of a return of capital may be under the impression that they are receiving net profits from the Fund when, in fact, they are not. Shareholders should not assume that the source of the distributions is from the net profits of the Fund.

Tax Status of the Fund. The Fund is taxed as a regular corporation ("C" corporation) for federal income tax purposes. This differs from most investment companies, which elect to be treated as regulated investment companies under the Code in order to avoid paying entity level income taxes. Under current law, the Fund is not eligible to elect treatment as a regulated investment company due to its investments primarily in MLPs invested in energy assets. As a result, the Fund will be obligated to pay applicable federal and state corporate income taxes on its taxable income as opposed to most investment companies which are not so obligated. As discussed below, the Fund expects that a portion of the distributions it receives from MLPs may be treated as a tax-deferred return of capital, thus reducing the Fund’s current tax liability. However, the amount of taxes currently paid by the Fund will vary depending on the amount of income and gains derived from investments and/or sales of MLP interests and such taxes may reduce your return from an investment in the Fund.

Tracking Error Risk: The performance of the Fund may diverge from that of the Underlying Index.

Bar Chart and Performance Table [Heading]

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PERFORMANCE INFORMATION

Performance Availability Website Address [Text]

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www.globalxfunds.comww.globalxfunds.com.

Bar Chart [Heading]

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Annual Total Returns (Years Ended December 31,)

Performance Table Heading

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Average Annual Total Returns (for the Periods Ended December 31, 2014)

Performance Table Closing [Text Block]

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After-tax returns are calculated using the historical highest individual U.S. 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 above. 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 (IRAs).

² Index performance reflects the performance of the Solactive MLP Composite Index. Effective April 1, 2015, the Fund changed its index from the Solactive MLP Composite Index to the Solactive MLP Infrastructure Index ("New Index"). This change was effected due to the planned migration to the New Index, potentially allowing for more concerted exposure to the midstream MLP asset class.

Risk/Return:

rr_RiskReturnAbstract

Label

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Solactive MLP Composite Index (net)

^[1]

Since Inception

rr_AverageAnnualReturnSinceInception

13.88%

^[1]

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

S&P 500 Index

Since Inception

rr_AverageAnnualReturnSinceInception

18.31%

Risk/Return:

rr_RiskReturnAbstract

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.45%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

3.54%

^[1],[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

401

Expense Example, with Redemption, 5 Years

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2,046

Annual Return 2013

rr_AnnualReturn2013

17.82%

Highest Quarterly Return, Label

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Best Quarter:

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

12.30%

Lowest Quarterly Return, Date

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Dec. 31, 2014

Label

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Return before taxes

Since Inception

rr_AverageAnnualReturnSinceInception

8.45%

Label

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Return after taxes on distributions1

^[3]

Since Inception

rr_AverageAnnualReturnSinceInception

6.79%

^[3]

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.51%

^[3]

Risk/Return [Heading]

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Global X Junior MLP ETF

Objective, Primary [Text Block]

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The Global X Junior MLP ETF (“Fund”) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Solactive Junior MLP Index (“Underlying Index”).

Expense Narrative [Text Block]

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This table describes the fees and expenses that you may pay if you buy and hold shares (“Shares”) of the Fund. You will also incur usual and customary brokerage commission when buying and selling Shares.

Portfolio Turnover [Heading]

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Portfolio Turnover:

Portfolio Turnover, Rate

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70.42%

Expense Example Narrative [Text Block]

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The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling shares of the Fund in the secondary market.

Strategy [Heading]

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PRINCIPAL INVESTMENT STRATEGIES

Risk [Heading]

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SUMMARY OF PRINCIPAL RISKS

Risk Lose Money [Text]

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As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.

Bar Chart and Performance Table [Heading]

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PERFORMANCE INFORMATION

Performance Information Illustrates Variability of Returns [Text]

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The bar chart and table that follow show how the Fund performed on a calendar year basis and 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 the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance.

Performance Past Does Not Indicate Future [Text]

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The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future.

Bar Chart Closing [Text Block]

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Best Quarter:	06/30/14	11.27%
Worst Quarter:	12/31/14	-17.36%

Performance Table Uses Highest Federal Rate

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After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Closing [Text Block]

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After-tax returns are calculated using the historical highest individual U.S. 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 above. 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 (IRAs).

Risk/Return:

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Label

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Solactive Junior MLP Index (net)

Since Inception

rr_AverageAnnualReturnSinceInception

6.49%

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

S&P 500 Index

Since Inception

rr_AverageAnnualReturnSinceInception

21.22%

Risk/Return:

rr_RiskReturnAbstract

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.75%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

2.03%

^[1],[4]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

281

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,469

Annual Return 2014

rr_AnnualReturn2014

(8.13%)

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2014

Lowest Quarterly Return, Label

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Worst Quarter:

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(17.36%)

1 Year

rr_AverageAnnualReturnYear01

(8.13%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 14, 2013

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(10.51%)

^[3]

Label

rr_AverageAnnualReturnLabel

Return after taxes on distributions and sale of Fund Shares1

^[3]

Since Inception

rr_AverageAnnualReturnSinceInception

0.74%

^[3]

Risk/Return:

rr_RiskReturnAbstract

Objective [Heading]

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INVESTMENT OBJECTIVE

Expense [Heading]

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FEES AND EXPENSES

Operating Expenses Caption [Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):

Portfolio Turnover [Text Block]

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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 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. For the most recent fiscal period, the Fund’s portfolio turnover rate was 28.99% of the average value of its portfolio.

Expense Example [Heading]

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Example:

Expense Example by, Year, Caption [Text]

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he 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 Narrative [Text Block]

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The Fund invests at least 80% of its total assets in the securities of the Underlying Index. The Fund also invests at least 80% of its total assets in securities of master limited partnerships (“MLPs”) and energy infrastructure corporations. The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed. The Fund may lend securities representing up to one-third of the value of the Fund's total assets (including the value of the collateral received).

The Underlying Index tracks the performance of MLPs and energy infrastructure corporations. Midstream energy infrastructure MLPs and corporations principally own and operate assets used in energy logistics, including, but not limited to, pipelines, storage facilities and other assets used in transporting, storing, gathering, and processing natural gas, natural gas liquids, crude oil or refined products. The Underlying Index limits its exposure to partnerships in order to comply with applicable tax diversification rules. Securities must be publicly traded in the United States. As of January 1, 2015, the Underlying Index was composed of 40 securities. The Fund’s investment objective and Underlying Index may be changed without shareholder approval.

The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index.

The Adviser will use a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued.

The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations (such as tax diversification requirements) that apply to the Fund but not the Underlying Index.

MLPs are publicly traded partnerships engaged in the transportation, storage, processing, refining, marketing, exploration, production, and mining of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.

To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.

MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.

The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses and taxes, and the performance of the Underlying Index. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy.

The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of January 1, 2015, the Fund was concentrated in the Energy Sector.

Risk Narrative [Text Block]

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As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Fund’s Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI").

Asset Class Risk: Securities in the Underlying Index or the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes.

Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand in a particular sector or industry; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.

Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions.

Industry Specific Risk: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.

Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.

Marine shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.

Investable Universe of Companies Risk: The investable universe of companies in which the Fund may invest may be limited. If a company no longer meets the Index Provider’s criteria for inclusion in the Underlying Index, the Fund may need to reduce or eliminate its holdings in that company. The reduction or elimination of the Fund’s holdings in the company may have an adverse impact on the liquidity of the Fund’s underlying portfolio holdings and on Fund performance.

Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.

Management Risk: The Fund is subject to the risk that the Adviser’s investment management strategy may cause the Fund to underperform the market or its relevant benchmark or adversely affect the ability of the Fund to achieve its investment objective.

Market Risk: The Fund's NAV could decline over short periods due to short-term market movements and over longer periods during market downturns.

Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses.