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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
+2.39%
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
$26.5B
AUM Growth
-$769M
(-2.8%)
Cap. Flow
-$1.09B
Cap. Flow
% of AUM
-4.11%
Top 10 Holdings %
Top 10 Hldgs %
22.54%
Holding
1,941
New
123
Increased
715
Reduced
742
Closed
84
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
CarMax
KMX
|
+$73M |
| 2 |
OSH
Oak Street Health, Inc.
OSH
|
+$60.6M |
| 3 |
iRhythm Holdings
IRTC
|
+$51.2M |
| 4 |
DexCom
DXCM
|
+$39.4M |
| 5 |
Aon
AON
|
+$30.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$449M |
| 2 |
Vanguard Morningstar Growth ETF
VUG
|
+$271M |
| 3 |
Amazon
AMZN
|
+$157M |
| 4 |
Microsoft
MSFT
|
+$83.3M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$78.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 25.67% |
| 2 | Healthcare | 19.26% |
| 3 | Financials | 11.68% |
| 4 | Consumer Discretionary | 10.53% |
| 5 | Industrials | 9.66% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1126
Workiva
WK
$4.01B
| $488K | ﹤0.01% |
+5,527
| New | +$547K |
|
1127
Axsome Therapeutics
AXSM
$11.2B
| $487K | ﹤0.01% |
8,607
-7,660
| -47% | -$539K |
|
1128
Zscaler
ZS
$30.4B
| $486K | ﹤0.01% |
2,829
+112
| +4% | +$22.3K |
|
1129
Equinor
EQNR
$96.3B
| $485K | ﹤0.01% |
24,912
+723
| +3% | +$13.7K |
|
1130
Zions Bancorporation
ZION
$10.5B
| $484K | ﹤0.01% |
8,798
+2,576
| +41% | +$133K |
|
1131
Digimarc Corp
DMRC
$158M
| $480K | ﹤0.01% |
16,175
-75
| -0.5% | -$2.98K |
|
|
VIRX
1132
DELISTED
Viracta Therapeutics, Inc. Common Stock
VIRX
| $480K | ﹤0.01% |
+51,843
| New | +$540K |
|
1133
Bank of Hawaii
BOH
$3.15B
| $479K | ﹤0.01% |
5,353
+2,431
| +83% | +$212K |
|
1134
CNO Financial Group
CNO
$5.07B
| $478K | ﹤0.01% |
19,692
-185
| -0.9% | -$4.4K |
|
1135
Frontdoor
FTDR
$5.83B
| $475K | ﹤0.01% |
8,844
-409
| -4% | -$22.3K |
|
1136
WisdomTree US LargeCap Dividend Fund
DLN
$6.45B
| $474K | ﹤0.01% |
8,266
-5,750
| -41% | -$316K |
|
1137
Spire
SR
$4.9B
| $474K | ﹤0.01% |
6,410
+25
| +0.4% | +$1.67K |
|
|
MPT
1138
Medical Properties Trust
MPT
$2.51B
| $473K | ﹤0.01% |
22,244
+4,805
| +28% | +$103K |
|
1139
Bank of Marin Bancorp
BMRC
$462M
| $472K | ﹤0.01% |
12,054
| – | – |
|
1140
Icon
ICLR
$12.9B
| $471K | ﹤0.01% |
2,396
+18
| +0.8% | +$3.55K |
|
|
BIG
1141
DELISTED
Big Lots, Inc.
BIG
| $470K | ﹤0.01% |
6,880
| – | – |
|
1142
CACI
CACI
$14.8B
| $465K | ﹤0.01% |
1,884
+701
| +59% | +$168K |
|
1143
HSBC
HSBC
$358B
| $465K | ﹤0.01% |
15,967
+551
| +4% | +$15.8K |
|
1144
Acuity Brands
AYI
$10.8B
| $463K | ﹤0.01% |
2,805
+201
| +8% | +$25.6K |
|
1145
NXP Semiconductors
NXPI
$58.5B
| $463K | ﹤0.01% |
2,299
+82
| +4% | +$15K |
|
1146
ProShares Russell 2000 Dividend Growers ETF
SMDV
$708M
| $459K | ﹤0.01% |
7,009
| – | – |
|
1147
Lamb Weston
LW
$7.39B
| $457K | ﹤0.01% |
5,904
+225
| +4% | +$17.7K |
|
1148
Marcus & Millichap
MMI
$1.2B
| $457K | ﹤0.01% |
13,555
-185
| -1% | -$6.8K |
|
1149
RLI Corp
RLI
$5.87B
| $457K | ﹤0.01% |
8,188
+3,916
| +92% | +$208K |
|
1150
Verra Mobility
VRRM
$731M
| $457K | ﹤0.01% |
33,733
+17,185
| +104% | +$238K |
|
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William Blair & Company's Q1 2021 Portfolio in Review
As of Q1 2021, William Blair & Company held 1,941 positions worth $26.5B, down 2.8% from $27.3B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
William Blair & Company withdrew a net $1.09B in Q1 2021, closing 84 positions and reducing 742 holdings. Its most notable exit was HMS Holdings Corp., an estimated $7.64M position sold in full.
By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Healthcare and Financials.
Against the trend, William Blair & Company opened a new position in Oak Street Health, Inc. worth $59.1M.
- William Blair & Company's largest Q1 2021 buy was Oak Street Health, Inc.: 1,089,318 shares worth $59.1M.
- William Blair & Company added most to CarMax in Q1 2021, an estimated $73M increase.
- William Blair & Company's biggest Q1 2021 reduction was Apple, cutting an estimated $449M.
- William Blair & Company fully exited HMS Holdings Corp. in Q1 2021, selling an estimated $7.64M.
- William Blair & Company's ten largest holdings make up 23% of its $26.5B portfolio in Q1 2021.
- William Blair & Company opened 123 new positions and closed 84 in Q1 2021.
- William Blair & Company's portfolio value fell 2.8% quarter-over-quarter to $26.5B.
Based on William Blair & Company's 13F filing for Q1 2021, filed 13 May 2021.