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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+7.16%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$34.1B
AUM Growth
+$1.63B
Cap. Flow
-$169M
Cap. Flow %
-0.5%
Top 10 Hldgs %
23.77%
Holding
1,892
New
86
Increased
671
Reduced
778
Closed
71

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$92.1M
2
AAON icon
Aaon
AAON
+$55.5M
3
P
Everpure Inc
P
+$43.5M
4
BAH icon
Booz Allen Hamilton
BAH
+$29M
5
RBC icon
RBC Bearings
RBC
+$26.8M

Top Sells

Rank Stock Value
1
DXCM icon
DexCom
DXCM
+$128M
2
CRWD icon
CrowdStrike
CRWD
+$42.9M
3
BLK icon
Blackrock
BLK
+$42M
4
CSGP icon
CoStar Group
CSGP
+$41.5M
5
SBUX icon
Starbucks
SBUX
+$38.8M

Sector Composition

Rank Sector Weight
1 Technology 27.11%
2 Healthcare 14.76%
3 Financials 12.67%
4 Industrials 11.93%
5 Consumer Discretionary 7.9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RSPG icon
1351
Invesco S&P 500 Equal Weight Energy ETF
RSPG
$560M
$251K ﹤0.01%
3,275
-647
-16% -$50.9K
POR icon
1352
Portland General Electric
POR
$5.77B
$251K ﹤0.01%
5,233
-251
-5% -$11.7K
MRC
1353
DELISTED
MRC Global
MRC
$248K ﹤0.01%
19,500
– –
TKR icon
1354
Timken Company
TKR
$9.03B
$248K ﹤0.01%
2,947
-1,421
-33% -$117K
XAR icon
1355
State Street SPDR S&P Aerospace & Defense ETF
XAR
$6.5B
$248K ﹤0.01%
1,578
+214
+16% +$31.9K
SUSC icon
1356
iShares ESG Aware USD Corporate Bond ETF
SUSC
$1.29B
$248K ﹤0.01%
10,422
+74
+0.7% +$1.73K
KELYA icon
1357
Kelly Services Class A
KELYA
$528M
$248K ﹤0.01%
11,574
+574
+5% +$12.2K
VICR icon
1358
Vicor
VICR
$10.2B
$248K ﹤0.01%
5,880
-1,220
-17% -$45.4K
FTS icon
1359
Fortis
FTS
$28.7B
$247K ﹤0.01%
5,443
– –
LIT icon
1360
Global X Lithium & Battery Tech ETF
LIT
$1.59B
$247K ﹤0.01%
5,671
-1,017
-15% -$38.7K
KIE icon
1361
State Street SPDR S&P Insurance ETF
KIE
$688M
$246K ﹤0.01%
4,329
– –
ITRN icon
1362
Ituran Location and Control
ITRN
$1.05B
$245K ﹤0.01%
9,250
– –
CPRI icon
1363
Capri Holdings
CPRI
$1.74B
$245K ﹤0.01%
5,769
-593
-9% -$20.8K
AIVL icon
1364
WisdomTree US AI Enhanced Value Fund
AIVL
$436M
$245K ﹤0.01%
2,198
– –
MTH icon
1365
Meritage Homes
MTH
$4.86B
$244K ﹤0.01%
+2,384
New +$225K
STLD icon
1366
Steel Dynamics
STLD
$37.6B
$244K ﹤0.01%
1,938
-352
-15% -$42.8K
AB icon
1367
AllianceBernstein
AB
$3.47B
$244K ﹤0.01%
6,989
+300
+4% +$10.2K
COHU icon
1368
Cohu
COHU
$2.5B
$243K ﹤0.01%
9,460
– –
SPAB icon
1369
State Street SPDR Portfolio Aggregate Bond ETF
SPAB
$9.94B
$243K ﹤0.01%
9,296
+789
+9% +$20.3K
CORT icon
1370
Corcept Therapeutics
CORT
$12B
$243K ﹤0.01%
+5,250
New +$187K
BFC icon
1371
Bank First Corp
BFC
$1.7B
$242K ﹤0.01%
2,669
– –
AIT icon
1372
Applied Industrial Technologies
AIT
$13.3B
$241K ﹤0.01%
1,079
+3
+0.3% +$612
PECO icon
1373
Phillips Edison & Co
PECO
$5.24B
$241K ﹤0.01%
6,379
-826
-11% -$29.5K
ATI icon
1374
ATI
ATI
$31B
$240K ﹤0.01%
+3,587
New +$223K
ZS icon
1375
Zscaler
ZS
$27.3B
$240K ﹤0.01%
1,402
+50
+4% +$9.13K
53 54
55
56 57

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William Blair & Company's Q3 2024 Portfolio in Review

As of Q3 2024, William Blair & Company held 1,892 positions worth $34.1B, up 5% from $32.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2024 filing shows 86 new, 671 increased, 778 reduced and 71 closed positions. Its largest new stake was PAR Technology: 73,733 shares worth $3.84M. The largest sale was DexCom, an estimated $128M.

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

  • William Blair & Company's largest Q3 2024 buy was PAR Technology: 73,733 shares worth $3.84M.
  • William Blair & Company added most to NVIDIA in Q3 2024, an estimated $92.1M increase.
  • William Blair & Company's biggest Q3 2024 reduction was DexCom, cutting an estimated $128M.
  • William Blair & Company fully exited Blackrock in Q3 2024, selling an estimated $42M.
  • William Blair & Company's ten largest holdings make up 24% of its $34.1B portfolio in Q3 2024.
  • William Blair & Company opened 86 new positions and closed 71 in Q3 2024.
  • William Blair & Company's portfolio value rose 5% quarter-over-quarter to $34.1B.

Based on William Blair & Company's 13F filing for Q3 2024, filed 12 Nov 2024.