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Latest BLAIR WILLIAM & CO/IL Stock Portfolio

BLAIR WILLIAM & CO/IL Performance:
2025 Q4: -0.01%YTD: 10.15%2024: 25.77%
Performance for 2025 Q4 is -0.01%, and YTD is 10.15%, and 2024 is 25.77%.

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

On 2026-02-17, the fund reported it's updated stock portfolio. In the 13F Holdings report, BLAIR WILLIAM & CO/IL reported an equity portfolio of $37.3 Billions as of 31 Dec, 2025.

The top stock holdings of BLAIR WILLIAM & CO/IL are MSFT, AAPL, AMZN. The fund has invested 4.6% of it's portfolio in MICROSOFT CORP and 4.3% of portfolio in APPLE INC.

The fund managers got completely rid off SAP SE (SAP), UNILEVER PLC (UL) and TOTALENERGIES SE (TTE) stocks. They significantly reduced their stock positions in INVESCO EXCHANGE TRADED FD T (CSD), NEOGEN CORP (NEOG) and DRAFTKINGS INC NEW (DKNG). BLAIR WILLIAM & CO/IL opened new stock positions in WINGSTOP INC (WING), ON HLDG AG (ONON) and TOTALENERGIES SE. The fund showed a lot of confidence in some stocks as they added substantially to ISHARES TR (AAXJ), FRANCO NEV CORP (FNV) and PROSHARES TR.

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

Our best estimate is that BLAIR WILLIAM & CO/IL made a return of -0.01% in the last quarter. In trailing 12 months, it's portfolio return was 10.15%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
wingstop inc21,648,400
on hldg ag11,794,000
totalenergies se5,539,050
New stocks bought by BLAIR WILLIAM & CO/IL

Additions

Ticker% Inc.
franco nev corp1,861
reinsurance grp of america i1,388
balchem corp1,276
emcor group inc1,197
veracyte inc1,144
argenx se1,005
innovator etfs trust941
ishares tr919
Additions to existing portfolio by BLAIR WILLIAM & CO/IL

Reductions

Ticker% Reduced
pool corp-75.07
fiserv inc-70.62
procept biorobotics corp-68.45
doximity inc-61.61
chipotle mexican grill inc-58.01
cbiz inc-57.65
clearwater analytics hldgs i-52.72
scotts miracle-gro co-49.36
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 25.4% of it's holdings in Technology sector.

Sector%
Technology25.4
Others18.8
Financial Services12.1
Healthcare11
Industrials10.6
Consumer Cyclical7.3
Communication Services7.1
Consumer Defensive3.4
Real Estate1.3
Energy1.3
Basic Materials1.2

Market Cap. Distribution

BLAIR WILLIAM & CO/IL has about 77.6% of it's portfolio invested in the large-cap and mega-cap stocks.

Category%
MEGA-CAP39.1
LARGE-CAP38.5
UNALLOCATED18.8
MID-CAP3

Stocks belong to which Index?

About 70.1% of the stocks held by BLAIR WILLIAM & CO/IL either belong to S&P 500 or RUSSELL 2000 index.

Index%
S&P 50067.7
Others29.8
RUSSELL 20002.4
Top 5 Winners (%)%
LPTX
cypherpunk technologies inc
155.5 %
VICR
vicor corp
113.5 %
sandisk corp
111.2 %
LITE
lumentum hldgs inc
108.6 %
XLB
select sector spdr tr
97.2 %
Top 5 Winners ($)$
GOOG
alphabet inc
220.0 M
GOOG
alphabet inc
175.4 M
AAPL
apple inc
102.9 M
LLY
eli lilly & co
97.3 M
AMZN
amazon com inc
67.9 M
Top 5 Losers (%)%
SEAT
vivid seats inc
-70.2 %
TMCI
treace med concepts inc
-63.5 %
lenz therapeutics inc
-63.0 %
PIII
p3 health partners inc
-60.9 %
TPL
texas pacific land corporati
-60.0 %
Top 5 Losers ($)$
MSFT
microsoft corp
-123.3 M
VEEV
veeva sys inc
-94.0 M
fiserv inc
-77.3 M
UBER
uber technologies inc
-67.9 M
NOW
servicenow inc
-65.0 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 1856 stocks in it's portfolio. About 27.4% of the portfolio is in top 10 stocks. MSFT proved to be the most loss making stock for the portfolio. GOOG was the most profitable stock for BLAIR WILLIAM & CO/IL last quarter.

Last Reported on: 17 Feb, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions