| Summary Prospectus |
August 28, 2026 |
| Shareholder Fees (fees paid directly from your
investment) | |||||||
| Class: |
A |
C |
R |
Y |
Investor |
R5 |
R6 |
| Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) |
5.50 % |
None |
None |
None |
None |
None |
None |
| | |||||||
| Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) |
None1 |
1.00 % |
None |
None |
None |
None |
None |
| | |||||||
| Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | |||||||
| Class: |
A |
C |
R |
Y |
Investor |
R5 |
R6 |
| Management Fees |
0.73 % |
0.73 % |
0.73 % |
0.73 % |
0.73 % |
0.73 % |
0.73 % |
| | |||||||
| Distribution and/or Service (12b-1) Fees |
0.25 |
1.00 |
0.50 |
None |
0.25 |
None |
None |
| | |||||||
| Other Expenses |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.17 |
0.10 |
| | |||||||
| Total Annual Fund Operating Expenses |
1.22 |
1.97 |
1.47 |
0.97 |
1.22 |
0.90 |
0.83 |
| | |||||||
| 1 |
A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”
|
| |
1 Year |
3 Years |
5 Years |
10 Years |
| Class A |
$667
|
$916
|
$1,183
|
$1,946
|
| | ||||
| Class C |
$300
|
$618
|
$1,062
|
$2,101
|
| | ||||
| Class R |
$150
|
$465
|
$803
|
$1,757
|
| | ||||
| Class Y |
$99
|
$309
|
$536
|
$1,190
|
| | ||||
| Investor Class |
$124
|
$387
|
$670
|
$1,477
|
| | ||||
| Class R5 |
$92
|
$287
|
$498
|
$1,108
|
| | ||||
| Class R6 |
$85
|
$265
|
$460
|
$1,025
|
| | ||||
| |
1 Year |
3 Years |
5 Years |
10 Years |
| Class A |
$667
|
$916
|
$1,183
|
$1,946
|
| | ||||
| Class C |
$200
|
$618
|
$1,062
|
$2,101
|
| | ||||
| Class R |
$150
|
$465
|
$803
|
$1,757
|
| | ||||
| Class Y |
$99
|
$309
|
$536
|
$1,190
|
| | ||||
| Investor Class |
$124
|
$387
|
$670
|
$1,477
|
| | ||||
| Class R5 |
$92
|
$287
|
$498
|
$1,108
|
| | ||||
| Class R6 |
$85
|
$265
|
$460
|
$1,025
|
| | ||||
| Investor Class |
Period Ended |
Returns |
| Year-to-date |
June 30, 2026 |
17.52% |
| Best Quarter |
March 31, 2022 |
35.66% |
| Worst Quarter |
March 31, 2020 |
-50.68% |
| |
Inception Date |
1 Year |
5 Years |
10
Years |
| Investor Class |
|
|
|
|
| Return Before Taxes |
1/19/1984 |
12.35 % |
23.31 % |
5.43 % |
| Return After Taxes on Distributions |
|
11.76 |
22.66 |
4.91 |
| Return After Taxes on Distributions and Sale of Fund Shares |
|
7.72 |
19.14 |
4.22 |
| | ||||
| Class A |
3/28/2002 |
6.19 |
21.93 |
4.83 |
| | ||||
| Class C |
2/14/2000 |
10.53 |
22.42 |
4.79 |
| | ||||
| Class R1 |
9/30/2025 |
12.09 |
23.01 |
5.16 |
| | ||||
| Class Y |
10/3/2008 |
12.66 |
23.61 |
5.69 |
| | ||||
| Class R5 |
1/31/2006 |
12.74 |
23.76 |
5.87 |
| | ||||
| Class R6 |
4/4/2017 |
12.81 |
23.84 |
5.85 2 |
| | ||||
| MSCI World Energy Index (Net)(reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) |
|
13.32 |
19.54 |
7.62 |
| | ||||
| S&P 500® Index (reflects no deduction for fees, expenses or taxes) |
|
17.88 |
14.42 |
14.82 |
| | ||||
| Portfolio Managers |
Title |
Length of Service on the Fund |
| Kevin Holt, CFA |
Portfolio Manager |
2020 |
| | ||
| Umang Khetan, CFA |
Portfolio Manager |
2020 |
| | ||
| Type of Account |
Initial
Investment Per Fund |
Additional Investments
Per Fund |
| Asset or fee-based accounts managed by your financial adviser |
None |
None |
| | ||
| Employer Sponsored Retirement and Benefit Plans and Employer Sponsored IRAs |
None |
None |
| | ||
| IRAs and Coverdell ESAs if the new investor is purchasing shares through a systematic purchase plan |
$25 |
$25 |
| | ||
| All other types of accounts if the investor is purchasing shares through a systematic purchase plan |
50 |
50 |
| | ||
| IRAs and Coverdell ESAs |
250 |
25 |
| | ||
| All other accounts |
1,000 |
50 |
| | ||