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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
+14.12%
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
$29.3B
AUM Growth
+$3.27B
Cap. Flow
-$91M
Cap. Flow %
-0.31%
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87

Top Buys

Rank Stock Value
1
GWRE icon
Guidewire Software
GWRE
+$37.5M
2
SCHW
Charles Schwab
SCHW
+$37.1M
3
VLTO icon
Veralto
VLTO
+$17.1M
4
VRTX icon
Vertex Pharmaceuticals
VRTX
+$16.7M
5
CSGP icon
CoStar Group
CSGP
+$16.3M

Top Sells

Rank Stock Value
1
DHR icon
Danaher
DHR
+$37.6M
2
IRTC icon
iRhythm Holdings
IRTC
+$26.7M
3
DE icon
Deere & Co
DE
+$22.6M
4
TOST icon
Toast
TOST
+$21.2M
5
KO icon
Coca-Cola
KO
+$20.3M

Sector Composition

Rank Sector Weight
1 Technology 26.35%
2 Healthcare 17.08%
3 Financials 12.09%
4 Industrials 11.7%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WOMN icon
1601
Impact Shares Womens Empowerment ETF Trading
WOMN
$59.1M
$38K ﹤0.01%
1,140
-709
-38% -$22.2K
DTH icon
1602
WisdomTree International High Dividend Fund
DTH
$659M
$37.6K ﹤0.01%
968
– –
IVOO icon
1603
Vanguard S&P Mid-Cap 400 ETF
IVOO
$3.93B
$37.6K ﹤0.01%
400
– –
FDIS icon
1604
Fidelity MSCI Consumer Discretionary Index ETF
FDIS
$1.71B
$37.5K ﹤0.01%
475
– –
IBDP
1605
DELISTED
iShares iBonds Dec 2024 Term Corporate ETF
IBDP
$37.4K ﹤0.01%
1,500
– –
AWRE icon
1606
Aware
AWRE
$26M
$36.5K ﹤0.01%
21,964
– –
IFGL icon
1607
iShares International Developed Real Estate ETF
IFGL
$82.2M
$34.8K ﹤0.01%
1,600
– –
PFXF icon
1608
VanEck Preferred Securities ex Financials ETF
PFXF
$2.47B
$34.4K ﹤0.01%
2,000
-35
-2% -$579
DES icon
1609
WisdomTree US SmallCap Dividend Fund
DES
$2.22B
$33.4K ﹤0.01%
1,037
-1,191
-53% -$34.6K
STIM icon
1610
Neuronetics
STIM
$223M
$33K ﹤0.01%
11,379
-79,827
-88% -$126K
STPZ icon
1611
PIMCO 1-5 Year US TIPS Index Exchange-Traded Fund
STPZ
$524M
$33K ﹤0.01%
645
– –
DFJ icon
1612
WisdomTree Japan SmallCap Dividend Fund
DFJ
$402M
$32.8K ﹤0.01%
438
– –
CNYA icon
1613
iShares MSCI China A ETF
CNYA
$208M
$32.4K ﹤0.01%
1,253
– –
BELFA icon
1614
Bel Fuse Inc Class A
BELFA
$3.43B
$32.3K ﹤0.01%
500
– –
HTZWW
1615
Hertz Global Holdings Warrants
HTZWW
$112M
$30.7K ﹤0.01%
5,602
-6
-0.1% -$30
REM icon
1616
iShares Mortgage Real Estate ETF
REM
$543M
$30.7K ﹤0.01%
1,300
– –
GVIP icon
1617
Goldman Sachs Hedge Industry VIP ETF
GVIP
$581M
$30.6K ﹤0.01%
319
-8,372
-96% -$751K
RWR icon
1618
State Street SPDR Dow Jones REIT ETF
RWR
$1.87B
$30.2K ﹤0.01%
317
+250
+373% +$21.5K
QBTS icon
1619
D-Wave Quantum Inc. Common Stock
QBTS
$7.72B
$29.9K ﹤0.01%
34,000
– –
IYM icon
1620
iShares US Basic Materials ETF
IYM
$1.02B
$29.7K ﹤0.01%
215
+11
+5% +$1.41K
CORP icon
1621
PIMCO Investment Grade Corporate Bond Index Exchange-Traded Fund
CORP
$1.58B
$29.5K ﹤0.01%
303
– –
ISCG icon
1622
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.02B
$29K ﹤0.01%
660
– –
EEMS icon
1623
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$379M
$28.9K ﹤0.01%
500
– –
EUFN icon
1624
iShares MSCI Europe Financials ETF
EUFN
$4.29B
$28.6K ﹤0.01%
1,364
– –
IXP icon
1625
iShares Global Comm Services ETF
IXP
$561M
$28.4K ﹤0.01%
380
– –
63 64
65
66 67

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William Blair & Company's Q4 2023 Portfolio in Review

As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
  • William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
  • William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
  • William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
  • William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.

Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.