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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
SLQD icon
1676
iShares 0-5 Year Investment Grade Corporate Bond ETF
SLQD
$2.38B
$13.2K ﹤0.01%
269
-549
-67% -$26.5K
TQQQ icon
1677
ProShares UltraPro QQQ
TQQQ
$37.4B
$13.1K ﹤0.01%
516
-300
-37% -$6.22K
CUT icon
1678
Invesco MSCI Global Timber ETF
CUT
$33.4M
$12.8K ﹤0.01%
400
– –
CZA icon
1679
Invesco Zacks Mid-Cap ETF
CZA
$192M
$12.7K ﹤0.01%
135
– –
FXN icon
1680
First Trust Energy AlphaDEX Fund
FXN
$388M
$12.4K ﹤0.01%
745
– –
EWQ icon
1681
iShares MSCI France ETF
EWQ
$333M
$12.4K ﹤0.01%
316
+67
+27% +$2.45K
SMMV icon
1682
iShares MSCI USA Small-Cap Min Vol Factor ETF
SMMV
$291M
$11.3K ﹤0.01%
+317
New +$10.7K
IDU icon
1683
iShares US Utilities ETF
IDU
$1.37B
$11.2K ﹤0.01%
140
-51
-27% -$3.91K
PDN icon
1684
Invesco FTSE RAFI Developed Markets ex-US Small-Mid ETF
PDN
$366M
$11K ﹤0.01%
338
– –
ENFR icon
1685
Alerian Energy Infrastructure ETF
ENFR
$521M
$11K ﹤0.01%
475
– –
RFG icon
1686
Invesco S&P MidCap 400 Pure Growth ETF
RFG
$362M
$10.9K ﹤0.01%
265
– –
FTSL icon
1687
First Trust Senior Loan Fund ETF
FTSL
$2.33B
$10.8K ﹤0.01%
+235
New +$10.8K
IDLV icon
1688
Invesco S&P International Developed Low Volatility ETF
IDLV
$344M
$10.6K ﹤0.01%
378
– –
EWL icon
1689
iShares MSCI Switzerland ETF
EWL
$2.22B
$10.4K ﹤0.01%
+215
New +$9.58K
SCHI icon
1690
Schwab 5-10 Year Corporate Bond ETF
SCHI
$11.5B
$9.93K ﹤0.01%
442
+238
+117% +$5.1K
WTV icon
1691
WisdomTree US Value Fund
WTV
$3.36B
$9.87K ﹤0.01%
144
– –
FCVT icon
1692
First Trust SSI Strategic Convertible Securities ETF
FCVT
$103M
$9.83K ﹤0.01%
295
– –
SGOV icon
1693
iShares 0-3 Month Treasury Bond ETF
SGOV
$101B
$9.12K ﹤0.01%
+91
New +$9.14K
VNM icon
1694
VanEck Vietnam ETF
VNM
$514M
$9.04K ﹤0.01%
700
– –
EWS icon
1695
iShares MSCI Singapore ETF
EWS
$1.16B
$8.49K ﹤0.01%
454
-100
-18% -$1.8K
XTN icon
1696
State Street SPDR S&P Transportation ETF
XTN
$392M
$8.35K ﹤0.01%
100
– –
FXU icon
1697
First Trust Utilities AlphaDEX Fund
FXU
$827M
$8.27K ﹤0.01%
261
– –
PXH icon
1698
Invesco FTSE RAFI Emerging Markets ETF
PXH
$1.97B
$8.18K ﹤0.01%
428
-163
-28% -$2.95K
PGF icon
1699
Invesco Financial Preferred ETF
PGF
$668M
$8.14K ﹤0.01%
558
– –
VCLT icon
1700
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.75B
$7.71K ﹤0.01%
96
-138
-59% -$10.2K
66 67
68
69 70

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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.