William Blair & Company

William Blair & Company Portfolio holdings

AUM $37.3B
1-Year Est. Return 20.51%
This Fund
S&P 500
This Quarter Est. Return
1 Year Est. Return
+20.51%
3 Year Est. Return
5 Year Est. Return
10 Year Est. Return
AUM
$31.9B
AUM Growth
+$2.51B
Cap. Flow
Cap. Flow %
Top 10 Hldgs %
Holding
2,054
New
Increased
Reduced
Closed

Top Buys

1 +$66.8M
2 +$47M
3 +$44.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$43.7M
5
AON icon
Aon
AON
+$36.1M

Top Sells

1 +$73.8M
2 +$46.9M
3 +$43.6M
4
DIS icon
Walt Disney
DIS
+$34M
5
PGR icon
Progressive
PGR
+$32.6M

Sector Composition

1 Technology 26.2%
2 Healthcare 19.21%
3 Financials 10.7%
4 Consumer Discretionary 10.6%
5 Industrials 10.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
2026
-50,825