485BPOS

As filed with the United States Securities and Exchange Commission on January 28, 2013

1933 Act Registration No. 002-85905

1940 Act Registration No. 811-03826

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	x
Pre-Effective Amendment No. ___	¨
Post-Effective Amendment No.  83	x

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No.  83  x

(Check appropriate box or boxes.)

AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)

(Exact Name of Registrant as Specified in Charter)

11 Greenway Plaza, Suite 1000, Houston, TX 77046

(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: (713) 626-1919

John M. Zerr, Esquire

11 Greenway Plaza, Suite 1000, Houston, TX 77046

(Name and Address of Agent for Service)

Copy to:

Peter A. Davidson, Esquire Invesco Advisers, Inc. 11 Greenway Plaza, Suite 1000 Houston, Texas 77046-1173 E. Carolan Berkley, Esquire Stradley Ronon Stevens & Young, LLP 2005 Market Street, Suite 2600 Philadelphia, Pennsylvania 19103-7018

Approximate Date of Proposed Public Offering: As soon as practicable after the effective date of this Registration Statement

It is proposed that this filing will become effective (check appropriate box)

x immediately upon filing pursuant to paragraph (b)

¨ on [date] pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ on (date) pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ on (date), pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

¨ this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Houston, Texas on the 28th day of January, 2013.

Registrant:	AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
By:	/s/ Philip A. Taylor
	Philip A. Taylor, President

Pursuant to the requirements of the Securities Act of 1933, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated:

SIGNATURES	TITLE	DATE
/s/ Philip A. Taylor     (Philip A. Taylor)	Trustee & President (Principal Executive Officer)	January 28, 2013
/s/ David C. Arch*     (David C. Arch)	Trustee	January 28, 2013
/s/ Frank S. Bayley*     (Frank S. Bayley)	Trustee	January 28, 2013
/s/ James T. Bunch*     (James T. Bunch)	Trustee	January 28, 2013
/s/ Bruce L. Crockett*     (Bruce L. Crockett)	Chair & Trustee	January 28, 2013
/s/ Rod Dammeyer*     (Rod Dammeyer)	Trustee	January 28, 2013
/s/ Albert R. Dowden*     (Albert R. Dowden)	Trustee	January 28, 2013
/s/ Martin L. Flanagan*     (Martin L. Flanagan)	Trustee	January 28, 2013
/s/ Jack M. Fields*     (Jack M. Fields)	Trustee	January 28, 2013
/s/ Prema Mathai-Davis*     (Prema Mathai-Davis)	Trustee	January 28, 2013
/s/ Larry Soll*     (Larry Soll)	Trustee	January 28, 2013
/s/ Hugo F. Sonnenschein*     (Hugo F. Sonnenschein)	Trustee	January 28, 2013

/s/ Raymond Stickel, Jr.*     (Raymond Stickel, Jr.)	Trustee	January 28, 2013
/s/ Wayne W. Whalen*     (Wayne W. Whalen)	Trustee	January 28, 2013
/s/ Sheri Morris     (Sheri Morris)	Vice President & Treasurer (Principal Financial and Accounting Officer)	January 28, 2013

*By	/s/ Philip A. Taylor
	Philip A. Taylor
	Attorney-in-Fact

* Philip A. Taylor, pursuant to powers of attorney dated November 30, 2010, filed in Registrant’s Post-Effective Amendment No. 65 on December 21, 2010.

Exhibit Index

XBRL Instance Document	Ex-101.ins
XBRL Taxonomy Extension Schema Document	Ex-101.sch
XBRL Taxonomy Extension Calculation Linkbase Document	Ex-101.cal
XBRL Taxonomy Extension Labels Linkbase	Ex-101.lab
XBRL Taxonomy Extension Presentation Linkbase Document	Ex-101.pre
XBRL Taxonomy Extension Definition Linkbase	Ex-101.def

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
Prospectus Date	rr_ProspectusDate	Jan. 18, 2013
Document Creation Date	dei_DocumentCreationDate	Jan. 15, 2013

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
Prospectus Date	rr_ProspectusDate	Jan. 18, 2013
INVESCO MID CAP GROWTH FUND
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Fund Summary
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital growth.
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.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
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 109% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	109.00%
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Total Annual Fund Operating Expenses” for Class R6 shares 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 redeem 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	Principal Investment Strategies of the Fund
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, Invesco Advisers, Inc. (the Adviser), the Fund’s investment adviser, seeks to achieve the Fund’s investment objective by investing primarily in common stocks and other equity securities of medium-sized growth companies. Under normal market conditions, the Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in securities of medium-sized companies at the time of investment. In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. The Fund may invest up to 25% of its total assets in securities of foreign issuers and may invest up to 10% of its total assets in real estate investment trusts (REITs). In attempting to meet its investment objective, the Fund engages in active and frequent trading of portfolio securities. The Adviser uses a bottom-up stock selection process designed to seek returns in excess of the benchmark as well as a disciplined portfolio construction process designed to manage risk. To narrow the investment universe, the Adviser uses a holistic approach that emphasizes fundamental research and, to a lesser extent, includes quantitative analysis. The Adviser then closely examines company fundamentals, including detailed modeling of all of a company’s financial statements and discussions with company management teams, suppliers, distributors, competitors, and customers. The Adviser uses a variety of valuation techniques based on the company in question, the industry in which the company operates, the stage of the business cycle, and other factors that best reflect a company’s value. The Adviser seeks to invest in companies with solid management teams, sound business models, strong financial health, attractive growth outlooks, and compelling valuations levels. The Adviser considers whether to sell a particular security when a company hits the price target, a company’s fundamentals deteriorate, or the catalysts for growth are no longer present or reflected in the stock price.
Risk [Heading]	rr_RiskHeading	Principal Risks of Investing in the Fund
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with any mutual fund, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Active Trading Risk. The Fund engages in frequent trading of portfolio securities. Active trading results in added expenses and may result in a lower return and increased tax liability. Management Risk. The investment techniques and risk analysis used by the Fund’s portfolio managers may not produce the desired results. Market Risk. The prices of and the income generated by the Fund’s securities may decline in response to, among other things, investor sentiment; general economic and market conditions; regional or global instability; and currency and interest rate fluctuations. Risks of Medium-Sized Companies. Medium-sized companies often have less predictable earnings, more limited product lines, markets, distribution channels or financial resources and the management of such companies may be dependent upon one or few key people. The market movements of equity securities of medium-sized companies may be more abrupt and volatile than the market movements of equity securities of larger, more established companies or the stock market in general. Historically, medium-sized companies have sometimes gone through extended periods when they did not perform as well as larger companies. In addition, equity securities of medium-sized companies generally are less liquid than larger companies. This means that the Fund could have greater difficulty selling such securities at the time and price that the Fund would like. Growth Investing Risk. Investments in growth-oriented equity securities may have above-average volatility of price movement. The returns on growth securities may or may not move in tandem with the returns on other styles of investing or the overall stock markets. Different types of stocks tend to shift in and out of favor depending on market and economic conditions. Thus, the value of the Fund’s investments will vary and at times may be lower or higher than that of other types of investments. Foreign Risks. The risks of investing in securities of foreign issuers, including emerging market issuers, can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues. Risks of Investing in REITs. Investing in REITs makes the Fund more susceptible to risks associated with the ownership of real estate and with the real estate industry in general and may involve duplication of management fees and other expenses. REITs may be less diversified than other pools of securities, may have lower trading volumes and may be subject to more abrupt or erratic price movements than the overall securities markets. Synthetic Securities Risk. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s and Van Kampen Mid Cap Growth Fund’s (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund. The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of its future performance. The returns for Class R5 shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. Class R6 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s (and the predecessor Fund’s) Class A shares, which are not offered in this prospectus. Class R5 and Class R6 shares would have different returns from the predecessor fund because, although the shares are invested in the same portfolio of securities, Class R5 and Class R6 shares have different expenses. The predecessor fund was advised by Van Kampen Asset Management. Updated performance information is available on the Fund’s Web site at www.invesco.com/us.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s and Van Kampen Mid Cap Growth Fund’s (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Class R6 shares of the Fund have less than a calendar year of performance;
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.invesco.com/us
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	Annual Total Returns
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Class R5 shares year-to-date (ended December 31, 2012): 12.25% Best Quarter (ended December 31, 2011): 10.22% Worst Quarter (ended September 30, 2011): -22.64%
Bar Chart, Returns for Class Not Offered in Prospectus [Text]	rr_BarChartReturnsForClassNotOfferedInProspectus	Class R6 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s (and the predecessor Fund’s) Class A shares, which are not offered in this prospectus.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns (for the periods ended December 31, 2011)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the historical highest 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	Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class R5 shares only and after-tax returns for other classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class R5 shares only and after-tax returns for other classes will vary.
INVESCO MID CAP GROWTH FUND | Class R5
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.70%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.15%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.85%	[1]
1 Year	rr_ExpenseExampleYear01	87
3 Years	rr_ExpenseExampleYear03	271
5 Years	rr_ExpenseExampleYear05	471
10 Years	rr_ExpenseExampleYear10	1,049
2011	rr_AnnualReturn2011	(8.62%)
Year to Date Return, Label	rr_YearToDateReturnLabel	Class R5 shares year-to-date
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Dec. 31, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	12.25%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	10.22%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(22.64%)
1 Year	rr_AverageAnnualReturnYear01	(8.62%)	[2]
5 Years	rr_AverageAnnualReturnYear05	3.18%	[2]
10 Years	rr_AverageAnnualReturnYear10	5.65%	[2]
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 01, 2010
INVESCO MID CAP GROWTH FUND | Class R6
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.70%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.07%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.77%	[1]
1 Year	rr_ExpenseExampleYear01	79
3 Years	rr_ExpenseExampleYear03	246
5 Years	rr_ExpenseExampleYear05	428
10 Years	rr_ExpenseExampleYear10	954
1 Year	rr_AverageAnnualReturnYear01	(9.10%)	[2]
5 Years	rr_AverageAnnualReturnYear05	3.09%	[2]
10 Years	rr_AverageAnnualReturnYear10	5.61%	[2]
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 18, 2013
INVESCO MID CAP GROWTH FUND | Return After Taxes on Distributions | Class R5
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(10.06%)	[2]
5 Years	rr_AverageAnnualReturnYear05	2.46%	[2]
10 Years	rr_AverageAnnualReturnYear10	5.16%	[2]
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 01, 2010
INVESCO MID CAP GROWTH FUND | Return After Taxes on Distributions and Sale of Fund Shares | Class R5
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(4.70%)	[2]
5 Years	rr_AverageAnnualReturnYear05	2.57%	[2]
10 Years	rr_AverageAnnualReturnYear10	4.86%	[2]
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 01, 2010
INVESCO MID CAP GROWTH FUND | S&P 500® Index (reflects no deductions for fees, expenses or taxes
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	2.09%
5 Years	rr_AverageAnnualReturnYear05	(0.25%)
10 Years	rr_AverageAnnualReturnYear10	2.92%
INVESCO MID CAP GROWTH FUND | Russell Midcap® Growth Index (reflects no deductions for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(1.65%)
5 Years	rr_AverageAnnualReturnYear05	2.44%
10 Years	rr_AverageAnnualReturnYear10	5.29%
INVESCO MID CAP GROWTH FUND | Lipper Mid-Cap Growth Funds Index
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(5.30%)
5 Years	rr_AverageAnnualReturnYear05	2.89%
10 Years	rr_AverageAnnualReturnYear10	4.48%

[1] "Other Expenses" and "Total Annual Fund Operating Expenses" for Class R6 shares are based on estimated amounts for the current fiscal year.

[2] Class R5 and Class R6 shares' performance shown prior to the inception date is that of the Fund's and the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers or expense reimbursements. The inception date of the predecessor fund's Class A shares is December 27, 1995.

XML

INVESCO MID CAP GROWTH FUND

Fund Summary

Investment Objective

The Fund’s investment objective is to seek capital growth.

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.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees INVESCO MID CAP GROWTH FUND	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

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

Annual Fund Operating Expenses INVESCO MID CAP GROWTH FUND		Class R5	Class R6
Management Fees		0.70%	0.70%
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.15%	0.07%
Total Annual Fund Operating Expenses	[1]	0.85%	0.77%

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 redeem 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 INVESCO MID CAP GROWTH FUND (USD $)	1 Year	3 Years	5 Years	10 Years
Class R5	87	271	471	1,049
Class R6	79	246	428	954

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 109% of the average value of its portfolio.

Principal Investment Strategies of the Fund

Under normal market conditions, Invesco Advisers, Inc. (the Adviser), the Fund’s investment adviser, seeks to achieve the Fund’s investment objective by investing primarily in common stocks and other equity securities of medium-sized growth companies. Under normal market conditions, the Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in securities of medium-sized companies at the time of investment.

In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement.

The Fund may invest up to 25% of its total assets in securities of foreign issuers and may invest up to 10% of its total assets in real estate investment trusts (REITs).

In attempting to meet its investment objective, the Fund engages in active and frequent trading of portfolio securities.

The Adviser uses a bottom-up stock selection process designed to seek returns in excess of the benchmark as well as a disciplined portfolio construction process designed to manage risk. To narrow the investment universe, the Adviser uses a holistic approach that emphasizes fundamental research and, to a lesser extent, includes quantitative analysis. The Adviser then closely examines company fundamentals, including detailed modeling of all of a company’s financial statements and discussions with company management teams, suppliers, distributors, competitors, and customers. The Adviser uses a variety of valuation techniques based on the company in question, the industry in which the company operates, the stage of the business cycle, and other factors that best reflect a company’s value. The Adviser seeks to invest in companies with solid management teams, sound business models, strong financial health, attractive growth outlooks, and compelling valuations levels.

The Adviser considers whether to sell a particular security when a company hits the price target, a company’s fundamentals deteriorate, or the catalysts for growth are no longer present or reflected in the stock price.

Principal Risks of Investing in the Fund

As with any mutual fund, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:

Active Trading Risk. The Fund engages in frequent trading of portfolio securities. Active trading results in added expenses and may result in a lower return and increased tax liability.

Management Risk. The investment techniques and risk analysis used by the Fund’s portfolio managers may not produce the desired results.

Market Risk. The prices of and the income generated by the Fund’s securities may decline in response to, among other things, investor sentiment; general economic and market conditions; regional or global instability; and currency and interest rate fluctuations.

Risks of Medium-Sized Companies. Medium-sized companies often have less predictable earnings, more limited product lines, markets, distribution channels or financial resources and the management of such companies may be dependent upon one or few key people. The market movements of equity securities of medium-sized companies may be more abrupt and volatile than the market movements of equity securities of larger, more established companies or the stock market in general. Historically, medium-sized companies have sometimes gone through extended periods when they did not perform as well as larger companies. In addition, equity securities of medium-sized companies generally are less liquid than larger companies. This means that the Fund could have greater difficulty selling such securities at the time and price that the Fund would like.

Growth Investing Risk. Investments in growth-oriented equity securities may have above-average volatility of price movement. The returns on growth securities may or may not move in tandem with the returns on other styles of investing or the overall stock markets. Different types of stocks tend to shift in and out of favor depending on market and economic conditions. Thus, the value of the Fund’s investments will vary and at times may be lower or higher than that of other types of investments.

Foreign Risks. The risks of investing in securities of foreign issuers, including emerging market issuers, can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues.

Risks of Investing in REITs. Investing in REITs makes the Fund more susceptible to risks associated with the ownership of real estate and with the real estate industry in general and may involve duplication of management fees and other expenses. REITs may be less diversified than other pools of securities, may have lower trading volumes and may be subject to more abrupt or erratic price movements than the overall securities markets.

Synthetic Securities Risk. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.

Performance Information

The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s and Van Kampen Mid Cap Growth Fund’s (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund. The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of its future performance.

The returns for Class R5 shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. Class R6 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s (and the predecessor Fund’s) Class A shares, which are not offered in this prospectus. Class R5 and Class R6 shares would have different returns from the predecessor fund because, although the shares are invested in the same portfolio of securities, Class R5 and Class R6 shares have different expenses. The predecessor fund was advised by Van Kampen Asset Management.

Updated performance information is available on the Fund’s Web site at www.invesco.com/us.

Annual Total Returns

Class R5 shares year-to-date (ended December 31, 2012): 12.25%
Best Quarter (ended December 31, 2011): 10.22%
Worst Quarter (ended September 30, 2011): -22.64%

Average Annual Total Returns (for the periods ended December 31, 2011)

Average Annual Total Returns INVESCO MID CAP GROWTH FUND	1 Year		5 Years		10 Years		Inception Date
Class R5 shares:	(8.62%)	[1]	3.18%	[1]	5.65%	[1]	Jun. 01, 2010
Class R5 shares: Return After Taxes on Distributions	(10.06%)	[1]	2.46%	[1]	5.16%	[1]	Jun. 01, 2010
Class R5 shares: Return After Taxes on Distributions and Sale of Fund Shares	(4.70%)	[1]	2.57%	[1]	4.86%	[1]	Jun. 01, 2010
Class R6 shares:	(9.10%)	[1]	3.09%	[1]	5.61%	[1]	Jan. 18, 2013
S&P 500® Index (reflects no deductions for fees, expenses or taxes	2.09%		(0.25%)		2.92%
Russell Midcap® Growth Index (reflects no deductions for fees, expenses or taxes)	(1.65%)		2.44%		5.29%
Lipper Mid-Cap Growth Funds Index	(5.30%)		2.89%		4.48%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class R5 shares only and after-tax returns for other classes will vary.

[1] "Other Expenses" and "Total Annual Fund Operating Expenses" for Class R6 shares are based on estimated amounts for the current fiscal year.

[1] Class R5 and Class R6 shares' performance shown prior to the inception date is that of the Fund's and the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers or expense reimbursements. The inception date of the predecessor fund's Class A shares is December 27, 1995.

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Document and Entity Information	12 Months Ended
	Jan. 18, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Apr. 30, 2012
Registrant Name	AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
Central Index Key	0000725781
Amendment Flag	false
Document Creation Date	Jan. 15, 2013
Document Effective Date	Jan. 18, 2013
Prospectus Date	Jan. 18, 2013