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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+3.1%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$34.4B
AUM Growth
+$328M
Cap. Flow
-$18.6M
Cap. Flow %
-0.05%
Top 10 Hldgs %
25.12%
Holding
1,903
New
83
Increased
650
Reduced
792
Closed
87

Top Buys

Rank Stock Value
1
XYZ
Block Inc
XYZ
+$80.6M
2
BLK icon
Blackrock
BLK
+$53.4M
3
CWAN
Clearwater Analytics
CWAN
+$48.5M
4
NVDA icon
NVIDIA
NVDA
+$47.9M
5
BWXT icon
BWX Technologies
BWXT
+$47M

Top Sells

Rank Stock Value
1
DXCM icon
DexCom
DXCM
+$37.7M
2
CSGP icon
CoStar Group
CSGP
+$34.5M
3
VRTX icon
Vertex Pharmaceuticals
VRTX
+$30M
4
BAH icon
Booz Allen Hamilton
BAH
+$29.1M
5
IDXX icon
Idexx Laboratories
IDXX
+$26.6M

Sector Composition

Rank Sector Weight
1 Technology 28.35%
2 Financials 13.43%
3 Healthcare 12.44%
4 Industrials 11.81%
5 Consumer Discretionary 8.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SJNK icon
1526
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.8B
$95.8K ﹤0.01%
3,794
+63
+2% +$1.6K
ZIP icon
1527
ZipRecruiter
ZIP
$405M
$95.6K ﹤0.01%
+13,198
New +$118K
FHLC icon
1528
Fidelity MSCI Health Care Index ETF
FHLC
$3.42B
$94.7K ﹤0.01%
1,449
-285
-16% -$19.8K
MODD icon
1529
Modular Medical
MODD
$11.2M
$92.6K ﹤0.01%
2,253
+67
+3% +$3.88K
NXE icon
1530
NexGen Energy
NXE
$7.07B
$91.9K ﹤0.01%
13,921
-3,079
-18% -$23.2K
IGIB icon
1531
iShares 5-10 Year Investment Grade Corporate Bond ETF
IGIB
$18.5B
$91.6K ﹤0.01%
1,779
-1,699
-49% -$89K
FXL icon
1532
First Trust Technology AlphaDEX Fund
FXL
$2.84B
$91.4K ﹤0.01%
615
– –
AEF
1533
abrdn Emerging Markets Equity Income Fund
AEF
$380M
$91.3K ﹤0.01%
17,592
-8,080
-31% -$43.8K
PID icon
1534
Invesco International Dividend Achievers ETF
PID
$912M
$90.1K ﹤0.01%
4,923
-53
-1% -$1.02K
TDTT icon
1535
FlexShares iBoxx 3-Year Target Duration TIPS Index Fund
TDTT
$2.53B
$90K ﹤0.01%
3,816
– –
GNL icon
1536
Global Net Lease
GNL
$1.9B
$89.8K ﹤0.01%
12,300
+1,433
+13% +$11K
GSY icon
1537
Invesco Ultra Short Duration ETF
GSY
$3.88B
$88.3K ﹤0.01%
1,763
+2
+0.1% +$100
IMTB icon
1538
iShares Core 5-10 Year USD Bond ETF
IMTB
$275M
$86.8K ﹤0.01%
2,044
-92
-4% -$3.97K
EAGG icon
1539
iShares ESG Aware US Aggregate Bond ETF
EAGG
$4.97B
$86.1K ﹤0.01%
1,854
+189
+11% +$8.93K
USHY icon
1540
iShares Broad USD High Yield Corporate Bond ETF
USHY
$29.1B
$85.6K ﹤0.01%
2,328
-755
-24% -$28.1K
SPTI icon
1541
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
$85.3K ﹤0.01%
3,061
+1,393
+84% +$39.4K
JHML icon
1542
John Hancock Multifactor Large Cap ETF
JHML
$1.2B
$84.1K ﹤0.01%
1,207
– –
DBEU icon
1543
Xtrackers MSCI Europe Hedged Equity ETF
DBEU
$798M
$82.4K ﹤0.01%
2,000
– –
RXRX icon
1544
Recursion Pharmaceuticals
RXRX
$1.76B
$81.1K ﹤0.01%
+12,000
New +$80.7K
IYY icon
1545
iShares Dow Jones US ETF
IYY
$3.07B
$80.7K ﹤0.01%
564
– –
TDOC icon
1546
Teladoc Health
TDOC
$1.22B
$80.1K ﹤0.01%
8,817
+1,709
+24% +$16.5K
SCHH icon
1547
Schwab US REIT ETF
SCHH
$11.3B
$79.5K ﹤0.01%
3,774
+700
+23% +$15.6K
VTHR icon
1548
Vanguard Russell 3000 ETF
VTHR
$4.85B
$79.2K ﹤0.01%
305
+47
+18% +$12.3K
IAI icon
1549
iShares US Broker-Dealers & Securities Exchanges ETF
IAI
$1.37B
$78.2K ﹤0.01%
543
+43
+9% +$6.14K
PWV icon
1550
Invesco Large Cap Value ETF
PWV
$1.78B
$76.8K ﹤0.01%
1,350
– –
60 61
62
63 64

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William Blair & Company's Q4 2024 Portfolio in Review

As of Q4 2024, William Blair & Company held 1,903 positions worth $34.4B, up 0.96% from $34.1B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company's Q4 2024 filing shows 83 new, 650 increased, 792 reduced and 87 closed positions. Its largest new stake was Blackrock: 52,623 shares worth $53.9M. The largest sale was DexCom, an estimated $37.7M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q4 2024 buy was Blackrock: 52,623 shares worth $53.9M.
  • William Blair & Company added most to Block Inc in Q4 2024, an estimated $80.6M increase.
  • William Blair & Company's biggest Q4 2024 reduction was DexCom, cutting an estimated $37.7M.
  • William Blair & Company fully exited Rush Street Interactive in Q4 2024, selling an estimated $5.79M.
  • William Blair & Company's ten largest holdings make up 25% of its $34.4B portfolio in Q4 2024.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2024.
  • William Blair & Company's portfolio value rose 0.96% quarter-over-quarter to $34.4B.

Based on William Blair & Company's 13F filing for Q4 2024, filed 12 Feb 2025.