BLAIR WILLIAM & CO/IL

CIK 0000902367 · Q1 2026

13F Equity AUM

$34.9B

-6.3% QoQ

Positions

1,791

+58 QoQ

AUM Rank

#280

Top 2%

Skill Alpha (FF)

-0.8%/yr^ns

No Clear Edge

Rank #3,396 · Top 41%

vs S&P -2.2%/yr (unadj.)

Quarters Tracked

~13 years

Portfolio Concentration

Top 5: 16.9%Top 10: 25.6%Top 20: 36.6%

AAPL4.3%

MSFT3.7%

AMZN3.6%

NVDA2.7%

GOOG2.5%

GOOGL2.0%

JPM1.9%

GEV1.7%

V1.6%

SPY1.6%

Others (1781)74.4%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Financial Services29.7%

Technology21.6%

Industrials11.6%

Healthcare10.6%

Consumer Cyclical7.2%

Communication Services7.0%

Consumer Defensive3.9%

Energy2.2%

Other6.3%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 1791Median: 0.00%Avg: 0.06%

0–0.5%

1746(46.6%)

0.5–1%

31(22.2%)

1–3%

11(19.5%)

3–5%

3(11.6%)

5%+

0(0.0%)

Count of positions per weight bucket — (%) = combined portfolio weight

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Portfolio Overlap

Shared: 1,728Unique: 63vs 20 funds

23.5%Moderate

1,791

Fund positions

7,299

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Most Similar Funds

Top 9 benchmark funds with highest portfolio overlap (Jaccard similarity)

MORGAN STANLEY

31.3%

BANK OF AMERICA CORP /DE/

33.8%

30.8%

30.4%

39.5%

28.1%

VANGUARD CAPITAL MANAGEMENT LLC

26.2%

GEODE CAPITAL MANAGEMENT, LLC

25.7%

VANGUARD PORTFOLIO MANAGEMENT LLC

28.3%

Jaccard similarity per fund: shared CUSIPs / (fund A + fund B − shared). Higher values indicate more similar portfolios.

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Position Changes This Quarter

New155Increased799Decreased745Exited100

New Positions

AZN0.1%

+101K

SIMO0.0%

+103K

GH0.0%

+104K

EXPO0.0%

+29K

SLDB0.0%

+651K

RYN0.0%

+131K

RLI0.0%

+32K

FLUTTER ENTMT PLC0.0%

+3K

CMPX0.0%

+31K

UP0.0%

+46K

Increased

VEU0.9%

+1.5M(+54%)

RSP0.9%

+1.1M(+206%)

MDLN0.1%

+1.1M(+2325%)

VEA0.7%

+714K(+23%)

TECH0.1%

+636K(+278%)

TDUP0.0%

+576K(+38%)

MDLZ0.1%

+446K(+125%)

DOCN0.1%

+402K(+1613%)

FAST1.0%

+359K(+5%)

MCHP0.1%

+327K(+125%)

Decreased

CWAN0.0%

-3,295,378(-98%)

SOY0.0%

-1,412,658(-99%)

IOT0.0%

-1,173,208(-89%)

CSGP0.1%

-1,123,210(-56%)

CRDF0.0%

-1,026,440(-53%)

PCOR0.0%

-967,748(-79%)

RYAN0.2%

-880,891(-35%)

UBER0.7%

-807,962(-20%)

WDAY0.1%

-574,666(-69%)

GCMG0.0%

-557,510(-61%)

Exited

-1,781,442

-211,184

-128,517

-32,592

-47,958

-370,564

-112,870

-159,290

-309,750

-61,065

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

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Holdings

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