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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
PLD icon
551
Prologis
PLD
$134B
$3.35M 0.01%
25,166
-8,062
-24% -$915K
SCHB icon
552
Schwab US Broad Market ETF
SCHB
$44.9B
$3.28M 0.01%
176,805
-3,726
-2% -$64.4K
BIDU icon
553
Baidu
BIDU
$35.6B
$3.28M 0.01%
27,540
-1,317
-5% -$152K
MOAT icon
554
VanEck Morningstar Wide Moat ETF
MOAT
$12.3B
$3.26M 0.01%
38,432
+661
+2% +$51.3K
POCT icon
555
Innovator US Equity Power Buffer ETF October
POCT
$974M
$3.24M 0.01%
89,569
+89,179
+22,866% +$3.11M
CGGR icon
556
Capital Group Growth ETF
CGGR
$25B
$3.23M 0.01%
114,539
+32,686
+40% +$845K
IGSB icon
557
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23.3B
$3.23M 0.01%
62,944
-1,651
-3% -$82.9K
ADSK icon
558
Autodesk
ADSK
$52.7B
$3.21M 0.01%
13,168
-3,138
-19% -$678K
ELS icon
559
Equity Lifestyle Properties
ELS
$12.4B
$3.21M 0.01%
45,445
+30
+0.1% +$2.04K
AEP icon
560
American Electric Power
AEP
$67.9B
$3.19M 0.01%
39,282
-597
-1% -$46.3K
ELF icon
561
e.l.f. Beauty
ELF
$5.47B
$3.19M 0.01%
22,080
+1,583
+8% +$183K
LQD icon
562
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.7B
$3.19M 0.01%
28,798
+15,067
+110% +$1.57M
IWS icon
563
iShares Russell Mid-Cap Value ETF
IWS
$16B
$3.18M 0.01%
27,375
+61
+0.2% +$6.5K
WPC icon
564
W.P. Carey
WPC
$16.1B
$3.17M 0.01%
48,931
+2,660
+6% +$153K
SRE icon
565
Sempra
SRE
$56.2B
$3.16M 0.01%
42,347
-181
-0.4% -$12.9K
MELI icon
566
Mercado Libre
MELI
$92.7B
$3.12M 0.01%
1,984
-15
-0.8% -$21.3K
LEN icon
567
Lennar Class A
LEN
$20.5B
$3.09M 0.01%
21,436
+213
+1% +$25.7K
COLD icon
568
Americold
COLD
$4.17B
$3.06M 0.01%
101,212
-11,654
-10% -$326K
ARKK icon
569
ARK Innovation ETF
ARKK
$6.44B
$3.06M 0.01%
58,375
+26,397
+83% +$1.14M
VDE icon
570
Vanguard Energy ETF
VDE
$10.4B
$3.05M 0.01%
26,020
+613
+2% +$73.5K
MRCC
571
DELISTED
Monroe Capital Corp
MRCC
$3.05M 0.01%
431,161
+5,104
+1% +$36.2K
BIIB icon
572
Biogen
BIIB
$30.9B
$3.04M 0.01%
11,735
-2,388
-17% -$587K
RGLD icon
573
Royal Gold
RGLD
$19.7B
$3.02M 0.01%
24,988
-12
-0% -$1.36K
DOCN icon
574
DigitalOcean
DOCN
$15.7B
$2.99M 0.01%
81,575
-4,193
-5% -$116K
AIRG icon
575
Airgain
AIRG
$69.3M
$2.98M 0.01%
837,679
-14,975
-2% -$47.1K
21 22
23
24 25

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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.