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ANALYTICS
AnalysisScreenerGroups

Selection

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BUFOX

Seeded with the selected fund at 100%

Benchmark

Pick one fund or composite — returns and exposures render in excess of it

Peer Universe

Reference set for percentile ranks and factor bars

Equity Funds · 5,640 total

ANALYTICS
AnalysisScreenerGroups

BUFOX

Buffalo Early Stage Growth Fund

Expense Ratio
1.48%
AUM
$66M
Inception
5/25/2004
1Y Return
+7.0%22nd %ilevs 5,640 asset-class peers
·

The fund invests at least 80% of net assets in equity securities of early stage growth companies, defined as those with market capitalizations below the weighted average of the Russell 2000 Growth Index, which was $4.7 billion as of June 30, 2026. Investments are primarily in domestic securities, with up to 20% in ADRs and foreign companies, and are selected based on in-depth research for favorable attributes. Significant holdings are currently in the information technology sector, with additional investments in healthcare and industrials.

Time Series
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Performance

NameCumulative ReturnAnn. ReturnAnn. VolSharpeMax DD
BUFOX
Buffalo Early Stage Growth Fund
7.0%7.0%22.9%0.14-15.5%
ⓘ Methodology

ETF performance based on market prices. Drag on chart to select period. Sharpe Ratio uses the one-month T-bill as the risk-free rate. From 10/7/2025 to 10/7/2026.

Trailing Returns

Name
YTD1D5D1M3M6M1Y2Y3Y5YMAX
BUFOX
Buffalo Early Stage Growth Fund
8.4%-1.8%-0.7%-4.1%-7.0%12.2%7.0%5.4%10.3%-2.5%7.6%
ⓘ Methodology

ETF performance based on market prices. Returns for periods greater than one year are annualized. As of 10/7/2026.

Annual Returns

Name
2004200520062007200820092010201120122013201420152016201720182019202020212022202320242025YTD
BUFOX
Buffalo Early Stage Growth Fund
11.0%*9.0%12.5%-11.0%-53.1%48.2%26.9%8.1%24.3%61.7%-7.3%-9.5%11.1%27.0%-3.8%34.0%47.9%7.4%-30.8%9.8%7.5%3.1%8.4%
ⓘ Methodology

* partial year — the series ran for only part of it (its first year, or the year it closed); the figure is the return over the part it did run. ETF performance based on market prices. As of 10/7/2026.

Correlation Matrix

Benchmark

Select a second series, or to correlate with the seven research factors.

Factor Regression

Name
Ann. αβ MKTβ SMBβ HMLβ RMWβ CMAβ UMDβ iHMLR²Obs
BUFOXUS
Buffalo Early Stage Growth Fund
-13.3%1.16**0.93**-0.03-0.39**0.21*-0.03-0.13*0.88226
ⓘ Methodology

ETF performance based on market prices. US factor set. Daily OLS of excess return (fund − T-bill) on factor spread returns over the selected date range, intersected with each series' history. Bold with * |t| ≥ 1.96, ** |t| ≥ 2.58. Cell shading tracks each loading's t-stat. Betas are returns-based — compare with the holdings-based factor scores below. Factor returns are long-short spread returns (© Ken French, Dartmouth). From 10/7/2025 to 8/31/2026.

SnapshotAs ofvsⓘ

Fund Profile

Family
Registrant
Type
Mutual Fund
Asset Class
Equity
Region
Equity Size & Style
Peer Group Benchmark
Peer Group
US Small Core (233 peers)
1Y Peer Percentile
19
3Y Peer Percentile
17
Expense Ratio
1.48%
5Y Tax Drag
1.11%/yr
AUM
$66M
3Y Flow
-15.4%
Yield
0.00%
Inception
5/25/2004
Holdings (Reported)
76
Turnover
48%
Equity
100%
Derivatives
0%
Net Equity Exposure
100%
Strategy Summary

The fund invests at least 80% of net assets in equity securities of early stage growth companies, defined as those with market capitalizations below the weighted average of the Russell 2000 Growth Index, which was $4.7 billion as of June 30, 2026. Investments are primarily in domestic securities, with up to 20% in ADRs and foreign companies, and are selected based on in-depth research for favorable attributes. Significant holdings are currently in the information technology sector, with additional investments in healthcare and industrials.

ⓘ Methodology

Expense ratio and its components from the fund's prospectus fee table; tax drag from its after-tax return table. Turnover from the fund's prospectus. Yield as of 10/7/2026, AUM 9/30/2026. Holdings, asset class, style, peer group and exposures as of 6/30/2026. Strategy summary from the fund's prospectus.

Equity Size & Style Map

LargeMidSmall
-
-
-
-
-
-
8%
36%
56%
Large
ValueCoreGrowth
Size
Large
0%
Mid
0%
Small
100%
Style
Value
8%
Core
36%
Growth
56%
ⓘ Methodology

Equity size and style definitions. Size: each holding is scored against its own market's size curve — Large above $61.7B in the US and $21.4B elsewhere, Small below $10.8B worldwide — and a fund sits at the weighted average of its holdings. Style: each holding's Traditional Value score is ranked against stocks of the same region and size, and a fund sits at the weighted average of those ranks. Both are relative measures — where a holding stands among comparable stocks, not an absolute threshold. The dollar lines are recomputed from total market capitalisation each time the data is refreshed; the shares of the market they mark are what stay fixed. Cell shading and percentages: share of classified holdings weight per box. The grid and the dot are built from one set of per-holding scores — the dot is their weighted average — so they describe the same book at two levels of detail. The Size and Style bars are the grid's row and column totals. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

Composite FactorsRef: Equity Funds

Intangible Value22.9
Traditional Value38.0
Small-Cap97.5
Quality6.2
Momentum48.6
ⓘ Methodology

Hover or click for factor definitions. Weighted average of underlying company-level values with weights equal to position size. Ranked within the clean equity fund universe, one entry per fund series (lowest: 0, highest: 100; the middle of the range is denser than the ends). Blue dots mark the fund; the shaded band spans the Equity Funds class 25th–75th percentile of scores, notched at the median. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

Factor DetailsRef: Equity Funds

Valuation
Book-to-Price (NTM)33.0
Sales-to-Price (NTM)47.4
Earnings-to-Price (NTM)2.9
Innovation/IP
R&D / Mkt Cap2.4
Patents / Mkt Cap0.74
Brand
Sales & Marketing / Mkt Cap2.3
Trademarks / Mkt Cap0.88
Human Capital
PhD Employees / Mkt Cap11.7
Top University Alumni / Mkt Cap25.2
Politics
Lobbying Spend / Mkt Cap41.9
AI
AI Employees / Mkt Cap4.2
ⓘ Methodology

Hover or click for factor definitions. Weighted average of underlying company-level values with weights equal to position size. Solid blue dots mark the fund's position within the clean equity fund universe (5th–95th percentile scale); the shaded band spans the fund's broad class (Equity Funds) 25th–75th percentile, notched at the median. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026. Expense ratio, yield, and turnover as of 10/7/2026. AUM as of 9/30/2026.

Country Exposure

Level
97.4%
95.0%
2.4%
2.6%
1.7%
Other0.8%
ⓘ Methodology

Shares are percentages of the holdings that carry a country, not portfolio weights. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

Sector Exposure

Level
27.7%
23.6%
23.5%
8.2%
6.3%
3.6%
3.2%
2.8%
1.1%
ⓘ Methodology

Shares are percentages of the fund's classified holdings — every position we can identify, with cash and unidentified positions excluded — not portfolio weights. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

Thematic Exposure

AI Composition

Infrastructure2.1%
Early Adopter15.2%
Laggard82.7%

Magnificent 7

Magnificent 70.0%
Non-Magnificent 7100.0%

Old vs New Economy

Old Economy53.8%
New Economy46.2%

Globalization

Multinational19.9%
Exporter19.2%
Importer8.8%
Domestic52.1%

China Exposure

China/HK Domiciled0.0%
Revenue & Operations8.9%
Operations Only11.7%
Revenue Only0.0%
No Material Exposure79.4%

Company Size

Mega (>$500B)0.0%
Large ($70–500B)0.0%
Mid ($10–70B)0.0%
Small ($1–10B)65.8%
Micro (<$1B)34.2%
ⓘ Methodology

Shares are percentages of the fund's classified equity book, renormalized so each split sums to 100% (the equity book is 100% of net assets) — they are not portfolio weights. China exposure: domiciled = incorporated in China or Hong Kong, falling back to the filing's country for holdings outside the stock model. Among the rest, revenue = ≥15% of revenue derived from China; operations = ≥3% of LinkedIn-tracked workforce in China, or ≥2 identified Chinese suppliers making up ≥12% of those identified. China revenue is estimated where segment reporting is absent. Company size bands by holding market cap: Mega >$500B, Large $70–500B, Mid $10–70B, Small $1–10B, Micro <$1B. Old vs New Economy partitions Sparkline's 48 industries: New = technology, internet platforms and entertainment, e-commerce, payments, pharma/biotech/medtech, and renewable energy; Old = everything else. Shares are of classified holdings and sum to 100%. China shares are of total equity weight. Size shares are of scored holdings weight. Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

Holdings

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76 positions (top 10 shown, create for full holdings)

#NameTickerWeight %SectorIndustryCountry
1Cardinal Infrastructure GroupCDNL
3.06
IndustrialsDiv IndustrialsUSA
2OusterOUST
2.94
TechnologyTechnology HardwareUSA
3Ambiq MicroAMBQ
2.56
TechnologySemiconductorsUSA
4OneSpaWorld HoldingsOSW
2.42
Consumer DiscHome & LeisureBS
5WisdomTreeWT
2.36
FinancialsInvestment ManagementUSA
6Guardian Pharmacy ServicesGRDN
2.23
HealthcareInsurers & ProvidersUSA
7ACM ResearchACMR
2.21
TechnologySemicap EquipmentUSA
8TranscatTRNS
2.15
IndustrialsBusiness ServicesUSA
9HealthStreamHSTM
1.95
HealthcareMedical TechnologyUSA
10ImpinjPI
1.87
TechnologySemiconductorsUSA
ⓘ Methodology

Holdings as of 6/30/2026. Stock-level data as of 8/31/2026.

ConcentrationRef: Equity Funds

Total Holdings76
Effective Holdings63.8
Top 10 Weight23.8%
Max Position3.1%
Top Sector (of Net Assets)25%
Top Country (of Net Assets)92%
ⓘ Methodology

Hover or click for definitions. Solid blue dots mark the fund: percentage rows on a 0–100% scale, holdings counts log-scaled across the clean-universe 5th–95th percentile range. The shaded band spans the fund's broad class (Equity Funds) 25th–75th percentile, notched at the median. Holdings as of 6/30/2026.

Benchmark DifferentiationRef: Equity Funds

vs SPYBroad Benchmark
Active Share100.0%
Tracking Error13.6%
Benchmark Correlation0.80
vs IWMStyle Benchmark
Active Share97.1%
Tracking Error8.4%
Benchmark Correlation0.92
ⓘ Methodology

One sub-card per benchmark: the market primary, then the style secondary — the gap between them is the style sleeve itself. Both anchors are Sparkline-inferred (market from asset class and region, style from the holdings size-and-style map), not the fund's official prospectus benchmark. Solid blue dot marks the fund; the shaded band spans the reference set's 25th–75th percentile, notched at the median (band follows the Peer Universe selector). Active Share compares the fund's book with the benchmark's, share for share; Tracking Error is the annualized daily deviation over the trailing two years (ruler runs to just past the universe's 95th percentile, or past the fund's own figure where that is larger); Benchmark Correlation is the plain daily correlation over the trailing year. Hover the labels for full definitions.

Peer Group Rank

See All Peer Groups
Metric
BUFOX
Buffalo Early Stage Growth Fund
Peer Group
233 funds
Peer Region
3,133 funds
Peer Asset Class
5,640 funds
YTD Return
8.37%12.16%2312.22%2811.63%33
1Y Return
7.01%14.46%1914.40%1914.44%22
3Y Return (Ann.)
10.31%16.05%1718.16%918.50%11
5Y Return (Ann.)
-2.53%5.70%28.90%28.64%4
Expense Ratiohigher = cheaper
1.48%0.94%60.75%60.74%6
ⓘ Methodology

Sparkline's own holdings-based peer taxonomy (602 share classes across 233 funds). One share class shown per fund — the exchange-listed class where the SEC series has one, else its longest-history class; percentile ranks and medians are computed against the same deduped set. Quartile chips fill the layer the fund's rank falls in (top layer = best quartile). Funds without a full return history rank only on the horizons they cover.

Similar Funds

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Nearest funds across the whole universe, by holdings and behavior — the peer taxonomy is ignored, so matches can come from any category.

Top Similarity32
Top Overlap
Top Active Tilt
Top Factor Match
Top Return Corr
Top FF Match
FundPeer Group
1WMICX
Wasatch Micro Cap Fund
US Small Growth
US Small Growth
32-----
2BUFSX
Buffalo Small Cap Growth Fund
US Small Growth
US Small Growth
31-----
3WAMVX
Wasatch Micro Cap Value Fund
US Small Core
US Small Core
31-----
4DTSGX
Small Company Growth Portfolio
US Small Growth
US Small Growth
25-----
5CMCMX
CONESTOGA DISCOVERY FUND
US Small Core
US Small Core
25-----
6RYVPX
Royce Smaller-Companies Growth Fund
US Small Growth
US Small Growth
25-----
7FYC
First Trust Small Cap Growth AlphaDEX Fund
US Small Core
US Small Core
23-----
8RYOTX
Royce Micro-Cap Fund
US Small Core
US Small Core
19-----
9FLXSX
Fidelity Flex Small Cap Index Fund
US Small Core
US Small Core
19-----
10RFIMX
Ranger Micro Cap Fund
US Small Core
US Small Core
19-----

The method columns are members-only — create a free account to see these figures.

ⓘ Methodology

Rows are the consensus top matches (a fund must place in at least two methods' top 250 to qualify, and matches missing more than one of this fund's own methods are not ranked — a row scored on fewer methods is a noisier estimate, not a better match). Click a method column to see that method's own top matches across the whole universe instead. Gray (N) beside each method's metric is that fund's rank in the whole universe on that method. Similarity is a percentile among match-grade fund pairs, 0–100 — 87 means the pair is closer than 87% of the strongest matches in the universe, averaged across the methods — so it compares across funds: index clones tie at the top with thousands of other clone pairs, so scores top out in the high 80s to 90s, while a one-of-a-kind fund's best match can score in the 30s. Rows are ordered by the Consensus Rank — the geometric mean of those universe ranks, shown in each cell's tooltip — and the score is held down the list to the level of the closest match above it, so equal scores mean equally close and the number reads as a floor. A dash means that method has no figure for the pair at all (one of them lacks the holdings or return history it needs). Hover a column header for each method's definition. The “Top…” strips above compare against every fund's own top match across the whole universe (they deliberately don't follow the Peer Universe selector); Top Similarity is simply the best match's score, with no reference band; the Holdings and Active Tilt strips carry no reference band because computing every fund's best book overlap would require a full holdings scan per fund — the dot stands alone on its natural 0–100% scale. One share class shown per fund, and a fund's own sister share classes are excluded from its Top-match strips. Holdings as of 6/30/2026. Consensus Rank is the geometric mean of the match's universe-wide rank across the methods (#1.0 = top match on every one). Holdings Overlap = common-holdings weight (sum of the minimum weight across shared positions, long only). Active Tilt Overlap = the same statistic on active weights (holdings minus the fund's own default benchmark, floored at 0), which strips the benchmark ballast that dominates raw overlap. Factor Similarity = 100 − a signature-weighted RMS gap across the composite factor scores (0–100 ranks within the clean equity fund universe), each axis weighted by how far this fund sits from the universe median of 50. Return Correlation = correlation of market-hedged daily returns over the trailing two years (CAPM residuals), so only market-beta co-movement is removed; requires ~18 months of daily history (378 of the window's 504 trading days). Fama-French Similarity = 1/(1+d), where d is the Euclidean distance between factor betas (market, size, value, profitability, investment, momentum, intangible value) from up to three years of daily returns (min 378 daily observations and regression R² of at least 0.25); 1.00 = identical loadings.