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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
(+9%)
Cap. Flow
+$202M
Cap. Flow
% of AUM
0.74%
Top 10 Holdings %
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$28.3M |
| 2 |
Allstate
ALL
|
+$25.8M |
| 3 |
Intuitive Surgical
ISRG
|
+$19.6M |
| 4 |
Neogen
NEOG
|
+$17.4M |
| 5 |
DoubleVerify
DV
|
+$17.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Neurocrine Biosciences
NBIX
|
+$29.1M |
| 2 |
Planet Fitness
PLNT
|
+$20.4M |
| 3 |
Airbnb
ABNB
|
+$17.1M |
| 4 |
IBM
IBM
|
+$14.8M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
1201
Bank of America Series L
BAC.PRL
$4.01B
| $337K | ﹤0.01% |
288
| – | – |
|
1202
Prospect Capital
PSEC
$1.18B
| $337K | ﹤0.01% |
54,300
-2,000
| -4% | -$12.9K |
|
1203
AutoNation
AN
$6.87B
| $334K | ﹤0.01% |
2,028
| – | – |
|
1204
Insight Enterprises
NSIT
$4.54B
| $333K | ﹤0.01% |
2,274
| – | – |
|
1205
Darling Ingredients
DAR
$10.2B
| $333K | ﹤0.01% |
5,214
+179
| +4% | +$10.9K |
|
1206
United Therapeutics
UTHR
$21.5B
| $331K | ﹤0.01% |
+1,500
| New | +$332K |
|
1207
Pinnacle West Capital
PNW
$12.2B
| $331K | ﹤0.01% |
4,059
-1,325
| -25% | -$106K |
|
1208
Open Text
OTEX
$5.9B
| $330K | ﹤0.01% |
7,945
-28
| -0.4% | -$1.12K |
|
1209
Minerals Technologies
MTX
$2.27B
| $329K | ﹤0.01% |
5,705
| – | – |
|
1210
Invesco S&P 500 Equal Weight Energy ETF
RSPG
$595M
| $329K | ﹤0.01% |
4,800
-1,690
| -26% | -$114K |
|
1211
Capital Group Dividend Value ETF
CGDV
$39B
| $328K | ﹤0.01% |
12,123
| – | – |
|
1212
DT Midstream
DTM
$13.8B
| $327K | ﹤0.01% |
6,591
+30
| +0.5% | +$1.44K |
|
1213
Arrow Electronics
ARW
$10.7B
| $326K | ﹤0.01% |
2,278
| – | – |
|
1214
EQT Corp
EQT
$33.6B
| $326K | ﹤0.01% |
+7,916
| New | +$280K |
|
1215
Goldman Sachs Access Treasury 0-1 Year ETF
GBIL
$7.59B
| $325K | ﹤0.01% |
+3,250
| New | +$325K |
|
1216
PTC
PTC
$16.1B
| $324K | ﹤0.01% |
+2,274
| New | +$301K |
|
1217
Innovator US Small Cap Power Buffer ETF April
KAPR
$219M
| $320K | ﹤0.01% |
+11,628
| New | +$310K |
|
1218
AtriCure
ATRC
$2.2B
| $320K | ﹤0.01% |
6,486
-317
| -5% | -$14.6K |
|
1219
Alamos Gold
AGI
$13.7B
| $320K | ﹤0.01% |
26,850
-684
| -2% | -$8.7K |
|
1220
Amplitude
AMPL
$1.58B
| $319K | ﹤0.01% |
29,000
-2,302
| -7% | -$24.8K |
|
1221
Insmed
INSM
$27.9B
| $318K | ﹤0.01% |
15,084
+2,794
| +23% | +$53K |
|
1222
Clean Harbors
CLH
$16.8B
| $318K | ﹤0.01% |
1,935
| – | – |
|
1223
KB Home
KBH
$3.44B
| $318K | ﹤0.01% |
6,150
| – | – |
|
1224
Ameren
AEE
$30.2B
| $317K | ﹤0.01% |
3,885
-121
| -3% | -$10.4K |
|
1225
Blue Owl Capital
OBDC
$5.87B
| $316K | ﹤0.01% |
23,570
-319
| -1% | -$4.17K |
|
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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.