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Latest BLAIR WILLIAM & CO/IL Stock Portfolio

BLAIR WILLIAM & CO/IL Performance:
2025 Q3: 4.61%YTD: 7.13%2024: 11.46%
Performance for 2025 Q3 is 4.61%, and YTD is 7.13%, and 2024 is 11.46%.

About BLAIR WILLIAM & CO/IL and 13F Hedge Fund Stock Holdings

In it's latest 13F Holdings report, BLAIR WILLIAM & CO/IL reported an equity portfolio of $37.6 Billions as of 30 Sep, 2025.

The top stock holdings of BLAIR WILLIAM & CO/IL are MSFT, AAPL, AMZN. The fund has invested 5% of it's portfolio in MICROSOFT CORP and 4.1% of portfolio in APPLE INC.

The fund managers got completely rid off STRIDE INC (LRN), GMS INC (GMS) and ANTERO RESOURCES CORP (AR) stocks. They significantly reduced their stock positions in SHIFT4 PMTS INC (FOUR), MAXCYTE INC (MXCT) and LEGALZOOM COM INC (LZ). BLAIR WILLIAM & CO/IL opened new stock positions in MIAMI INTL HLDGS INC, LIGHT & WONDER INC (LNW) and AMERICAN PUB ED INC (APEI). The fund showed a lot of confidence in some stocks as they added substantially to ISHARES TR (AGT), INVESCO EXCHANGE TRADED FD T (CSD) and VANECK ETF TRUST (AFK).

BLAIR WILLIAM & CO/IL Annual Return Estimates Vs S&P 500

Our best estimate is that BLAIR WILLIAM & CO/IL made a return of 4.61% in the last quarter. In trailing 12 months, it's portfolio return was 7.31%.

New Buys

Ticker$ Bought
miami intl hldgs inc14,645,200
sap se9,192,890
viper energy inc7,924,270
New stocks bought by BLAIR WILLIAM & CO/IL

Additions

Ticker% Inc.
diamondback energy inc5,608
doximity inc1,990
devon energy corp new725
wisdomtree tr711
ishares silver tr593
transunion573
vanguard star fds522
spotify technology s a350
Additions to existing portfolio by BLAIR WILLIAM & CO/IL

Reductions

Ticker% Reduced
cyberark software ltd-82.26
vaneck etf trust-61.44
lululemon athletica inc-49.28
novanta inc-48.94
thredup inc-45.77
unitedhealth group inc-45.61
mercury sys inc-35.61
planet fitness inc-35.55
BLAIR WILLIAM & CO/IL reduced stake in above stock

Sold off

None of the stocks were completely sold off by BLAIR WILLIAM & CO/IL

Sector Distribution

BLAIR WILLIAM & CO/IL has about 26.5% of it's holdings in Technology sector.

Sector%
Technology26.5
Others17.4
Financial Services12
Industrials11.4
Healthcare10.8
Consumer Cyclical7.4
Communication Services6.2
Consumer Defensive3.6
Real Estate1.7
Basic Materials1.3
Energy1.2

Market Cap. Distribution

BLAIR WILLIAM & CO/IL has about 77.1% of it's portfolio invested in the large-cap and mega-cap stocks.

Category%
LARGE-CAP41.4
MEGA-CAP35.7
UNALLOCATED17.4
MID-CAP4.7

Stocks belong to which Index?

About 70.3% of the stocks held by BLAIR WILLIAM & CO/IL either belong to S&P 500 or RUSSELL 2000 index.

Index%
S&P 50067.7
Others29.7
RUSSELL 20002.6
Top 5 Winners (%)%
TLRY
tilray brands inc
314.8 %
OVID
ovid therapeutics inc
235.2 %
jumia technologies ag
139.8 %
sandisk corp
134.6 %
HLLY
holley inc
122.2 %
Top 5 Winners ($)$
AAPL
apple inc
297.2 M
GOOG
alphabet inc
209.3 M
GOOG
alphabet inc
168.9 M
NVDA
nvidia corporation
160.7 M
IDXX
idexx labs inc
108.3 M
Top 5 Losers (%)%
SEAT
vivid seats inc
-93.2 %
HDB
hdfc bank ltd
-46.7 %
EVEX
eve hldg inc
-44.5 %
INSP
inspire med sys inc
-42.2 %
PAR
par technology corp
-41.3 %
Top 5 Losers ($)$
fiserv inc
-87.9 M
ISRG
intuitive surgical inc
-44.4 M
DXCM
dexcom inc
-43.2 M
NOW
servicenow inc
-39.2 M
COST
costco whsl corp new
-35.5 M

BLAIR WILLIAM & CO/IL Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of BLAIR WILLIAM & CO/IL

BLAIR WILLIAM & CO/IL has 1832 stocks in it's portfolio. About 26% of the portfolio is in top 10 stocks. proved to be the most loss making stock for the portfolio. AAPL was the most profitable stock for BLAIR WILLIAM & CO/IL last quarter.

Last Reported on: 12 Nov, 2025
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions