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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
+10.3%
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
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
EPAC icon
1301
Enerpac Tool Group
EPAC
$1.89B
$253K ﹤0.01%
10,160
– –
GRID
1302
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund
GRID
$12.3B
$251K ﹤0.01%
2,566
+690
+37% +$64.8K
VRP icon
1303
Invesco Variable Rate Preferred ETF
VRP
$3.01B
$250K ﹤0.01%
11,292
-420
-4% -$9.59K
ATO icon
1304
Atmos Energy
ATO
$28.7B
$250K ﹤0.01%
2,226
+28
+1% +$3.19K
NFRA icon
1305
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.04B
$249K ﹤0.01%
4,798
– –
USIG icon
1306
iShares Broad USD Investment Grade Corporate Bond ETF
USIG
$17.4B
$249K ﹤0.01%
4,916
+1,617
+49% +$81.2K
NLY icon
1307
Annaly Capital Management
NLY
$17.6B
$248K ﹤0.01%
12,961
-497
-4% -$10.5K
ALLY icon
1308
Ally Financial
ALLY
$13.6B
$247K ﹤0.01%
9,708
-92
-0.9% -$2.64K
KBH icon
1309
KB Home
KBH
$3.45B
$247K ﹤0.01%
+6,150
New +$224K
FNV icon
1310
Franco-Nevada
FNV
$44.7B
$247K ﹤0.01%
1,691
-3,520
-68% -$491K
AYI icon
1311
Acuity Brands
AYI
$10.8B
$246K ﹤0.01%
1,348
-50
-4% -$9.23K
LAKE icon
1312
Lakeland Industries
LAKE
$117M
$246K ﹤0.01%
16,852
+2
+0% +$29
WDS icon
1313
Woodside Energy
WDS
$43.3B
$246K ﹤0.01%
10,963
-2,550
-19% -$61.3K
FPE icon
1314
First Trust Preferred Securities and Income ETF
FPE
$6.34B
$245K ﹤0.01%
15,349
+488
+3% +$8.42K
SKYY icon
1315
First Trust Cloud Computing ETF
SKYY
$3.38B
$244K ﹤0.01%
3,652
+24
+0.7% +$1.51K
RPV icon
1316
Invesco S&P 500 Pure Value ETF
RPV
$1.74B
$244K ﹤0.01%
3,218
– –
CPAA
1317
DELISTED
Conyers Park III Acquisition Corp. Class A Common Stock
CPAA
$244K ﹤0.01%
23,900
– –
PECO icon
1318
Phillips Edison & Co
PECO
$5.2B
$243K ﹤0.01%
7,464
+259
+4% +$8.47K
DECK icon
1319
Deckers Outdoor
DECK
$12.7B
$242K ﹤0.01%
3,228
+18
+0.6% +$1.26K
PWB icon
1320
Invesco Large Cap Growth ETF
PWB
$2.45B
$241K ﹤0.01%
3,713
+1,650
+80% +$103K
JJSF icon
1321
J&J Snack Foods
JJSF
$1.7B
$240K ﹤0.01%
1,619
-53
-3% -$7.69K
ALGM icon
1322
Allegro MicroSystems
ALGM
$8.23B
$239K ﹤0.01%
+4,970
New +$202K
TW icon
1323
Tradeweb Markets
TW
$22.3B
$238K ﹤0.01%
+3,009
New +$218K
STAA icon
1324
STAAR Surgical
STAA
$1.26B
$237K ﹤0.01%
3,711
-1,208
-25% -$78.8K
FDUS icon
1325
Fidus Investment
FDUS
$751M
$237K ﹤0.01%
12,421
– –
51 52
53
54 55

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.