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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
+9.7%
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
$27.3B
AUM Growth
+$2.26B
Cap. Flow
+$202M
Cap. Flow %
0.74%
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$28.3M
2
ALL icon
Allstate
ALL
+$25.8M
3
ISRG icon
Intuitive Surgical
ISRG
+$19.6M
4
NEOG icon
Neogen
NEOG
+$17.4M
5
DV icon
DoubleVerify
DV
+$17.3M

Top Sells

Rank Stock Value
1
NBIX icon
Neurocrine Biosciences
NBIX
+$29.1M
2
PLNT icon
Planet Fitness
PLNT
+$20.4M
3
ABNB icon
Airbnb
ABNB
+$17.1M
4
IBM icon
IBM
IBM
+$14.8M
5
XMTR icon
Xometry
XMTR
+$10.8M

Sector Composition

Rank Sector Weight
1 Technology 25.59%
2 Healthcare 18.44%
3 Industrials 11.64%
4 Financials 11.51%
5 Consumer Discretionary 8.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GALT icon
1576
Galectin Therapeutics
GALT
$317M
$54.6K ﹤0.01%
37,884
– –
EWZ icon
1577
iShares MSCI Brazil ETF
EWZ
$8.57B
$54.1K ﹤0.01%
1,668
+50
+3% +$1.49K
RNTX
1578
Rein Therapeutics
RNTX
$68.9M
$53.1K ﹤0.01%
29,667
-2,550
-8% -$3.93K
LRGF icon
1579
iShares US Equity Factor ETF
LRGF
$3.71B
$52.8K ﹤0.01%
1,185
– –
SHYG icon
1580
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.61B
$52.2K ﹤0.01%
1,259
+459
+57% +$18.9K
OXY.WS icon
1581
Occidental Petroleum Corp Warrants
OXY.WS
$34.4B
$51.5K ﹤0.01%
1,379
+94
+7% +$3.59K
HEWG
1582
DELISTED
iShares Currency Hedged MSCI Germany ETF
HEWG
$51.4K ﹤0.01%
1,610
– –
TBF icon
1583
ProShares Short 20+ Year Treasury ETF
TBF
$106M
$51K ﹤0.01%
2,350
– –
RESE
1584
DELISTED
WisdomTree Emerging Markets ESG Fund
RESE
$50.6K ﹤0.01%
1,782
+7
+0.4% +$197
UA icon
1585
Under Armour Class C
UA
$2.2B
$49K ﹤0.01%
7,309
+834
+13% +$6.12K
BITO icon
1586
ProShares Bitcoin Strategy ETF
BITO
$1.43B
$48.6K ﹤0.01%
2,863
-1,862
-39% -$30.2K
OIH icon
1587
VanEck Oil Services ETF
OIH
$1.96B
$48.3K ﹤0.01%
168
+59
+54% +$16K
CTXR icon
1588
Citius Pharmaceuticals
CTXR
$21M
$48.2K ﹤0.01%
1,608
-3
-0.2% -$99
EWJV icon
1589
iShares MSCI Japan Value ETF
EWJV
$754M
$47.9K ﹤0.01%
1,750
– –
TCRT icon
1590
Alaunos Therapeutics
TCRT
$4.88M
$47.8K ﹤0.01%
625
– –
IGE icon
1591
iShares North American Natural Resources ETF
IGE
$786M
$47.4K ﹤0.01%
1,221
+5
+0.4% +$193
FNDA icon
1592
Schwab Fundamental US Small Company Index ETF
FNDA
$9.38B
$47.2K ﹤0.01%
1,872
-3,142
-63% -$75.4K
SPIP icon
1593
State Street SPDR Portfolio TIPS ETF
SPIP
$1.01B
$47.1K ﹤0.01%
1,824
+484
+36% +$12.7K
BRF icon
1594
VanEck Brazil Small-Cap ETF
BRF
$20.4M
$46.5K ﹤0.01%
2,572
– –
PSQ icon
1595
ProShares Short QQQ
PSQ
$642M
$46.2K ﹤0.01%
874
-695
-44% -$40.7K
RSPF icon
1596
Invesco S&P 500 Equal Weight Financials ETF
RSPF
$309M
$46.1K ﹤0.01%
900
– –
ITEQ icon
1597
Amplify BlueStar Israel Technology ETF
ITEQ
$118M
$43.3K ﹤0.01%
937
+37
+4% +$1.68K
EDIV icon
1598
State Street SPDR S&P Emerging Markets Dividend ETF
EDIV
$1.22B
$42.7K ﹤0.01%
+1,502
New +$41.3K
IQLT icon
1599
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
$42.4K ﹤0.01%
1,192
+417
+54% +$14.9K
SRVR icon
1600
Pacer Data & Infrastructure Real Estate ETF
SRVR
$386M
$41.9K ﹤0.01%
1,436
-173
-11% -$5.02K
62 63
64
65 66

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William Blair & Company's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair & Company held 1,897 positions worth $27.3B, up 9% from $25B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2023 filing shows 97 new, 682 increased, 737 reduced and 88 closed positions. Its largest new stake was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M. The largest sale was Neurocrine Biosciences, an estimated $29.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair & Company's largest Q2 2023 buy was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M.
  • William Blair & Company added most to Costco in Q2 2023, an estimated $28.3M increase.
  • William Blair & Company's biggest Q2 2023 reduction was Neurocrine Biosciences, cutting an estimated $29.1M.
  • William Blair & Company fully exited ABB Ltd in Q2 2023, selling an estimated $7.21M.
  • William Blair & Company's ten largest holdings make up 24% of its $27.3B portfolio in Q2 2023.
  • William Blair & Company opened 97 new positions and closed 88 in Q2 2023.
  • William Blair & Company's portfolio value rose 9% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q2 2023, filed 11 Aug 2023.