Buffalo Early Stage Growth Fund Institutional Class (BUIOX)

Fund Assets	68.91M
Expense Ratio	1.35%
Min. Investment	$250,000
Turnover	48.00%
Dividend (ttm)	n/a
Dividend Yield	n/a
Dividend Growth	n/a
Payout Frequency	n/a
Ex-Dividend Date	Dec 5, 2025

Previous Close	18.21
YTD Return	10.97%
1-Year Return	6.75%
5-Year Return	-9.82%
52-Week Low	15.12
52-Week High	19.84
Beta (5Y)	n/a
Holdings	76
Inception Date	Jul 1, 2019

About BUIOX

The Buffalo Early Stage Growth Fund Institutional Class is a mutual fund designed to pursue long-term capital appreciation by investing primarily in equity securities of smaller, fast-growing companies. The fund targets businesses in the early stages of development, generally focusing on small- and micro-cap stocks across a diverse set of sectors including financials, health care, industrials, and consumer discretionary. Employing a combination of top-down and bottom-up investment strategies, the fund seeks to identify broad, secular growth trends while rigorously analyzing company fundamentals. Its managers maintain a disciplined, proprietary approach to portfolio construction, with the intention of balancing growth potential and risk. As of the latest data, the fund holds a concentrated portfolio of approximately 58 positions and emphasizes companies with strong free cash flow. The Buffalo Early Stage Growth Fund Institutional Class plays a significant role within the small-cap growth segment, offering institutional investors targeted access to emerging companies that are poised to benefit from sustained innovation and economic expansion.

• Fund Family: Buffalo
• Category: Small Growth
• Performance Rating: Below Average
• Risk Rating: Average
• Stock Exchange: NASDAQ
• Ticker Symbol: BUIOX
• Share Class: Institutional Class
• Index: Russell 2000 Growth TR

Performance

BUIOX had a total return of 6.75% in the past year, including dividends. Since the fund's inception, the average annual return has been 7.52%.

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
BUFOX	Investor Class	1.48%

Top 10 Holdings

23.75% of assets

Name	Symbol	Weight
Cardinal Infrastructure Group Inc.	CDNL	3.06%
Ouster, Inc.	OUST	2.94%
Ambiq Micro, Inc.	AMBQ	2.56%
OneSpaWorld Holdings Limited	OSW	2.42%
WisdomTree, Inc.	WT	2.36%
Guardian Pharmacy Services, Inc.	GRDN	2.23%
ACM Research, Inc.	ACMR	2.21%
Transcat, Inc.	TRNS	2.15%
HealthStream, Inc.	HSTM	1.95%
Impinj, Inc.	PI	1.87%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 5, 2025	$0.82911	Dec 5, 2025
Dec 5, 2022	$0.16895	Dec 5, 2022
Dec 3, 2021	$3.24775	Dec 3, 2021
Dec 18, 2020	$2.48296	Dec 18, 2020
Dec 18, 2019	$0.79828	Dec 18, 2019

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Sep 25, 2026

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