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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
GSY icon
1476
Invesco Ultra Short Duration ETF
GSY
$3.88B
$110K ﹤0.01%
2,227
– –
AG icon
1477
First Majestic Silver
AG
$9.44B
$108K ﹤0.01%
15,042
-191
-1% -$1.41K
PIII icon
1478
P3 Health Partners
PIII
$38.9M
$107K ﹤0.01%
2,027
+554
+38% +$33.3K
VTWG icon
1479
Vanguard Russell 2000 Growth ETF
VTWG
$1.56B
$107K ﹤0.01%
647
+255
+65% +$42.4K
DGS icon
1480
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.78B
$106K ﹤0.01%
2,325
– –
EAGG icon
1481
iShares ESG Aware US Aggregate Bond ETF
EAGG
$4.97B
$106K ﹤0.01%
2,213
+5
+0.2% +$238
QCLN icon
1482
First Trust NASDAQ Clean Edge Green Energy Index Fund
QCLN
$632M
$106K ﹤0.01%
2,029
-226
-10% -$11.8K
PSTX
1483
DELISTED
Poseida Therapeutics, Inc. Common Stock
PSTX
$106K ﹤0.01%
34,343
+15,200
+79% +$91.1K
DWM icon
1484
WisdomTree International Equity Fund
DWM
$693M
$105K ﹤0.01%
2,119
+11
+0.5% +$545
GSJY icon
1485
Goldman Sachs ActiveBeta Japan Equity ETF
GSJY
$88.7M
$104K ﹤0.01%
3,240
– –
IVOV icon
1486
Vanguard S&P Mid-Cap 400 Value ETF
IVOV
$1.37B
$104K ﹤0.01%
1,322
– –
IGF icon
1487
iShares Global Infrastructure ETF
IGF
$10.7B
$104K ﹤0.01%
2,175
+667
+44% +$31.6K
CWI icon
1488
State Street SPDR MSCI ACWI ex-US ETF
CWI
$2.87B
$104K ﹤0.01%
4,030
+220
+6% +$5.59K
BOND icon
1489
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.47B
$99.7K ﹤0.01%
1,075
-227
-17% -$21K
PJUN icon
1490
Innovator US Equity Power Buffer ETF June
PJUN
$976M
$99.6K ﹤0.01%
3,236
-675
-17% -$20.5K
ILCG icon
1491
iShares Morningstar Growth ETF
ILCG
$3.28B
$98.9K ﹤0.01%
+1,787
New +$93.6K
REZ icon
1492
iShares Residential and Multisector Real Estate ETF
REZ
$848M
$98.3K ﹤0.01%
1,392
– –
BJUL icon
1493
Innovator US Equity Buffer ETF July
BJUL
$353M
$98K ﹤0.01%
3,000
– –
RSPM icon
1494
Invesco S&P 500 Equal Weight Materials ETF
RSPM
$184M
$97.5K ﹤0.01%
2,995
– –
IBRX icon
1495
ImmunityBio
IBRX
$8.2B
$96.5K ﹤0.01%
53,031
– –
SPHD icon
1496
Invesco S&P 500 High Dividend Low Volatility ETF
SPHD
$3.39B
$95.7K ﹤0.01%
2,267
-594
-21% -$25.9K
PSQ icon
1497
ProShares Short QQQ
PSQ
$642M
$95.5K ﹤0.01%
1,569
-58
-4% -$3.87K
TEVA icon
1498
Teva Pharmaceuticals
TEVA
$42.8B
$95.5K ﹤0.01%
10,788
+38
+0.4% +$376
HYS icon
1499
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.77B
$94.3K ﹤0.01%
1,033
– –
IYG icon
1500
iShares US Financial Services ETF
IYG
$2.22B
$93K ﹤0.01%
1,848
-459
-20% -$25K
58 59
60
61 62

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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.