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Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

Oberweis Small-Cap Opportunities Fund

OBSOX | Fund

$38.64

$2.41 B

0.00%

1.26%

Vitals

YTD Return

32.6%

1 yr return

56.4%

3 Yr Avg Return

22.9%

5 Yr Avg Return

16.8%

Net Assets

$2.41 B

Holdings in Top 10

33.4%

52 WEEK LOW AND HIGH

$38.1
N/A
N/A

Expenses

OPERATING FEES

Expense Ratio 1.26%

SALES FEES

Front Load N/A

Deferred Load N/A

TRADING FEES

Turnover 106.00%

Redemption Fee 1.00%

Min Investment

Standard (Taxable)

$1,000

IRA

$500

Fund Classification

Fund Type

Open End Mutual Fund

Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

Oberweis Small-Cap Opportunities Fund

OBSOX | Fund

$38.64

$2.41 B

0.00%

1.26%

OBSOX - Profile

Distributions

  • YTD Total Return 32.6%
  • 3 Yr Annualized Total Return 22.9%
  • 5 Yr Annualized Total Return 16.8%
  • Capital Gain Distribution Frequency Annually
  • Net Income Ratio -1.22%
DIVIDENDS
  • Dividend Yield 0.0%
  • Dividend Distribution Frequency Annual

Fund Details

  • Legal Name
    Oberweis Small-Cap Opportunities Fund
  • Fund Family Name
    Oberweis
  • Inception Date
    Mar 23, 2007
  • Shares Outstanding
    N/A
  • Share Class
    Investor
  • Currency
    USD
  • Domiciled Country
    US
  • Manager
    James Oberweis

Fund Description

p class="Text_flush0" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:0;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:0pt;"span style="-keep: true"The Fund invests, under normal circumstances, at least 80% of its net assets in the securities of smallspan class="nobreak"-cap/span companies. The Fund’s investment adviser, Oberweis Asset Management, Inc. (“OAM”), considers smallspan class="nobreak"-cap/span companies as those, at the time of initial investment, with a market capitalization within the range of the holdings of the Russell 2000 Growth Index. As of June 30, 2025, the market capitalization range of the Russell 2000 Growth Index was $59.3span class="nobreak" /spanmillion to $15.9span class="nobreak" /spanbillion. The Fund invests principally in the common stocks of companies that OAM believes have the potential for significant longspan class="nobreak"-term/span growth in market value./span/p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"The Fund seeks to invest in those companies which OAM considers to have abovespan class="nobreak"-average/span longspan class="nobreak"-term/span growth potential. OAM selects companies which meet this criteria based on, among other things, fundamental analysis of individual securities. OAM’s fundamental analysis entails an evaluation of an individual company’s future growth prospects. OAM’s evaluation may be based on, among other things, financial statement analysis, stock valuation in relation to OAM’s estimate of future earnings, evaluation of competitive product or service offerings, future research and development pipeline and management interviews. OAM may actively trade the Fund’s portfolio, and as a result, the Fund’s portfolio turnover rate may be high./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"The Fund primarily invests in companies headquartered in the United States. The Fund seeks to invest in equity securities that typically exhibit the following characteristics:/p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Under/spanspan class="nobreak"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"-Appreciated/span/spanspan class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;" Revenue and Earnings Growth/span — potential for revenue and/or earnings growth in excess of consensus expectations./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Timely Catalyst/span — a recent positive earnings release or an earnings surprise that tangibly and quantitatively begins to confirm that consensus analyst expectations are too low./pp class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Inflection Point of Change/span — a business that is experiencing change — often from a new product, a new management team or a regulatory change — as these changes can drive unexpected or underestimated growth. A significant gap generally exists between OAM’s forecasts and consensus analyst expectations./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Limited Analyst Coverage/span — a company not widely followed by other analysts to maximize the chances of finding misunderstood situations./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Sustainability/span — a sustainable business with a competitive position driven by niche market leadership, intellectual capital or unique manufacturing processes. Put another way, a reasonable barrier to competitive entry./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Operating Leverage/span — profitable and scalable business model, which tends to generate rising net profits margins as revenue growth accelerates./p p class="Text_flush" style="margin:0;padding:0;border-width:0;font-family:Proxima Nova Light, sans-serif;font-size:9pt;font-style:normal;font-variant:normal;font-weight:300;margin-bottom:0;margin-left:0;margin-right:0;margin-top:7pt;orphans:2;page-break-after:auto;page-break-before:auto;text-align:justify;text-indent:0;widows:2;margin-top:6.5pt;"span class="Bold" style="font-family:Proxima Nova, sans-serif;font-style:normal;font-weight:bold;"Valuation/span — undervalued based on OAM’s growth forecasts and historical valuation metrics afforded the company and/or peers./p
Read More

OBSOX - Performance

Return Ranking - Trailing

Period OBSOX Return Category Return Low Category Return High Rank in Category (%)
YTD 32.6% -21.0% 75.2% 3.00%
1 Yr 56.4% -22.1% 123.6% 10.00%
3 Yr 22.9%* -5.4% 37.8% 12.20%
5 Yr 16.8%* -8.3% 38.7% 1.42%
10 Yr 18.8%* 4.4% 26.8% 3.09%

* Annualized

Return Ranking - Calendar

Period OBSOX Return Category Return Low Category Return High Rank in Category (%)
2025 14.3% -58.0% 42.0% 8.40%
2024 15.2% -63.4% 62.9% 28.20%
2023 15.8% -20.5% 54.6% 43.17%
2022 -11.3% -82.1% 32.2% 1.22%
2021 17.8% -90.6% 300.1% 4.69%

Total Return Ranking - Trailing

Period OBSOX Return Category Return Low Category Return High Rank in Category (%)
YTD 32.6% -21.0% 75.2% 3.00%
1 Yr 56.4% -22.1% 123.6% 10.00%
3 Yr 22.9%* -5.4% 37.8% 12.20%
5 Yr 16.8%* -8.3% 38.7% 1.42%
10 Yr 18.8%* 4.4% 26.8% 3.09%

* Annualized

Total Return Ranking - Calendar

Period OBSOX Return Category Return Low Category Return High Rank in Category (%)
2025 14.3% -23.5% 42.0% 14.40%
2024 16.1% -3.8% 68.8% 31.00%
2023 15.8% -19.0% 54.6% 55.42%
2022 -9.8% -59.9% 32.2% 2.64%
2021 43.6% -22.7% 411.9% 1.84%

NAV & Total Return History

OBSOX - Holdings

Concentration Analysis

OBSOX Category Low Category High OBSOX % Rank
Net Assets 2.41 B 4.59 M 42.8 B 23.80%
Number of Holdings 77 7 1223 72.00%
Net Assets in Top 10 670 M 393 K 3.7 B 18.40%
Weighting of Top 10 33.37% 9.3% 100.0% 19.64%

Top 10 Holdings

  1. Lumentum Holdings Inc 8.01%
  2. Applied Optoelectronics Inc 4.51%
  3. Credo Technology Group Holding Ltd 4.01%
  4. DigitalOcean Holdings Inc 3.29%
  5. Nova Ltd 2.64%
  6. SharkNinja Inc 2.64%
  7. Dana Inc 2.39%
  8. BrightSpring Health Services Inc 2.18%
  9. Rambus Inc 1.87%
  10. SiTime Corp 1.82%

Asset Allocation

Weighting Return Low Return High OBSOX % Rank
Stocks 		98.57% 90.58% 106.14% 41.00%
Cash 		1.43% 0.00% 33.61% 60.40%
Preferred Stocks 		0.00% 0.00% 5.64% 39.00%
Other 		0.00% -0.55% 6.22% 46.20%
Convertible Bonds 		0.00% 0.00% 1.57% 31.60%
Bonds 		0.00% 0.00% 4.40% 33.40%

Stock Sector Breakdown

Weighting Return Low Return High OBSOX % Rank
Technology 		22.42% 2.91% 75.51% 66.00%
Healthcare 		18.56% 0.00% 47.90% 74.40%
Consumer Cyclical 		18.47% 0.00% 24.04% 5.60%
Industrials 		17.56% 0.00% 36.64% 42.40%
Basic Materials 		6.07% 0.00% 9.24% 4.60%
Communication Services 		5.85% 0.00% 15.31% 3.40%
Consumer Defense 		4.44% 0.00% 13.56% 40.00%
Financial Services 		3.73% 0.00% 42.95% 84.60%
Energy 		2.91% 0.00% 55.49% 46.20%
Utilities 		0.00% 0.00% 4.68% 51.80%
Real Estate 		0.00% 0.00% 15.31% 80.40%

Stock Geographic Breakdown

Weighting Return Low Return High OBSOX % Rank
US 		98.57% 11.05% 106.14% 32.20%
Non US 		0.00% 0.00% 84.43% 43.80%

OBSOX - Expenses

Operational Fees

OBSOX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Expense Ratio 1.26% 0.05% 7.92% 41.40%
Management Fee 0.80% 0.04% 1.62% 45.89%
12b-1 Fee 0.25% 0.00% 1.00% 38.95%
Administrative Fee N/A 0.01% 0.40% 98.48%

Sales Fees

OBSOX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Front Load N/A 3.50% 5.75% N/A
Deferred Load N/A 1.00% 5.00% N/A

Trading Fees

OBSOX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Max Redemption Fee 1.00% 1.00% 2.00% 82.22%

Related Fees

Turnover provides investors a proxy for the trading fees incurred by mutual fund managers who frequently adjust position allocations. Higher turnover means higher trading fees.

OBSOX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Turnover 106.00% 3.00% 264.00% 81.55%

OBSOX - Distributions

Dividend Yield Analysis

OBSOX Category Low Category High OBSOX % Rank
Dividend Yield 0.00% 0.00% 6.91% 42.20%

Dividend Distribution Analysis

OBSOX Category Low Category High Category Mod
Dividend Distribution Frequency Annual Annual Annual Annual

Net Income Ratio Analysis

OBSOX Category Low Category High OBSOX % Rank
Net Income Ratio -1.22% -2.47% 1.10% 84.62%

Capital Gain Distribution Analysis

OBSOX Category Low Category High Capital Mode
Capital Gain Distribution Frequency Annually Annually Annually Annually

Distributions History

View More +

OBSOX - Fund Manager Analysis

Managers

James Oberweis

Start Date

Tenure

Tenure Rank

Dec 31, 2001

20.43

20.4%

Jim is President of Oberweis Asset Management, Inc. and oversees all investment research at Oberweis. He has spent his entire career managing portfolios of high-growth, small-cap companies. Jim is a holder of the Chartered Financial Analyst (CFA) designation. Jim earned an MBA with high honors from the University of Chicago and a BS in Computer Science from the University of Illinois. He has been a featured guest on CNBC and Bloomberg Television and authors a growth stock column for Forbes. Jim is a member of the Young Presidents’ Organization (YPO), the Economic Club of Chicago, the Investment Analysts Society of Chicago, and the CFA Institute.

Kenneth Farsalas

Start Date

Tenure

Tenure Rank

May 01, 2009

13.09

13.1%

Ken joined Oberweis Asset Management, Inc. in November 2004 and is Director of U.S. Equities and Portfolio Manager for the firm’s domestic strategies. Previously, he was employed at Dearborn Partners LLC, where he was a Managing Director and the Director of Research. Prior to that, Ken worked as a small cap Research Analyst and Portfolio Manager at Sterling Johnston Capital Management, and began his career at SEI Capital Resources as an Investment Consultant. Ken is a holder of the Chartered Financial Analyst (CFA) designation. He earned an MBA in Finance and Accounting from the University of Chicago and a BS in Journalism and Economics from Northwestern University. He is a member of the Investment Analysts Society of Chicago and the CFA Institute. Ken has been featured on Forbes.com and has provided commentary on various investment issues to Investor’s Business Daily, Reuters and Bloomberg.

Tenure Analysis

Category Low Category High Category Average Category Mode
0.08 30.44 9.26 5.25

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