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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 | |
|---|---|---|---|---|---|---|
1276
SiTime
SITM
$21.2B
| $340K | ﹤0.01% |
3,449
-1,000
| -22% | -$117K |
|
1277
Bank of Montreal
BMO
$129B
| $339K | ﹤0.01% |
3,801
-15,271
| -80% | -$1.25M |
|
1278
OFG Bancorp
OFG
$2.26B
| $339K | ﹤0.01% |
15,000
| – | – |
|
1279
Canadian Imperial Bank of Commerce
CM
$112B
| $337K | ﹤0.01% |
6,888
-402
| -6% | -$18.6K |
|
1280
NetEase
NTES
$78.1B
| $336K | ﹤0.01% |
3,252
-308
| -9% | -$34.9K |
|
1281
Timken Company
TKR
$9.11B
| $336K | ﹤0.01% |
4,143
+16
| +0.4% | +$1.28K |
|
1282
iShares US Consumer Discretionary ETF
IYC
$1.22B
| $335K | ﹤0.01% |
4,471
-25
| -0.6% | -$1.82K |
|
1283
Lamar Advertising Co
LAMR
$15.9B
| $335K | ﹤0.01% |
3,567
-89
| -2% | -$7.84K |
|
1284
Bread Financial
BFH
$4.51B
| $333K | ﹤0.01% |
+3,725
| New | +$267K |
|
1285
Masco
MAS
$14.8B
| $332K | ﹤0.01% |
5,542
-532
| -9% | -$29.7K |
|
1286
Transocean
RIG
$6.38B
| $332K | ﹤0.01% |
93,501
+7,500
| +9% | +$26.1K |
|
1287
Alcon
ALC
$35.3B
| $331K | ﹤0.01% |
4,719
-704
| -13% | -$49.8K |
|
1288
Invesco S&P MidCap Momentum ETF
XMMO
$7.64B
| $331K | ﹤0.01% |
3,950
-190
| -5% | -$15.8K |
|
1289
Armstrong World Industries
AWI
$7.74B
| $330K | ﹤0.01% |
+3,661
| New | +$311K |
|
1290
Carlyle Secured Lending
CGBD
$783M
| $330K | ﹤0.01% |
25,000
-15,000
| -38% | -$181K |
|
|
STOR
1291
DELISTED
STORE Capital Corporation
STOR
| $330K | ﹤0.01% |
9,855
+1,215
| +14% | +$39.6K |
|
1292
JPMorgan Ultra-Short Municipal Income ETF
JMST
$7.15B
| $325K | ﹤0.01% |
+6,365
| New | +$325K |
|
|
SYNH
1293
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
| $324K | ﹤0.01% |
+4,266
| New | +$322K |
|
1294
Macy's
M
$6.22B
| $323K | ﹤0.01% |
19,940
-250
| -1% | -$3.82K |
|
1295
UGI
UGI
$7.55B
| $321K | ﹤0.01% |
7,816
-4,818
| -38% | -$186K |
|
1296
Voya Financial
VOYA
$9.12B
| $320K | ﹤0.01% |
5,035
| – | – |
|
1297
Scotiabank
BNS
$111B
| $318K | ﹤0.01% |
5,090
-1,390
| -21% | -$80.6K |
|
1298
Byline Bancorp
BY
$1.78B
| $317K | ﹤0.01% |
15,001
-3,889
| -21% | -$72.9K |
|
1299
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.37B
| $317K | ﹤0.01% |
10,690
-99,734
| -90% | -$2.96M |
|
1300
Perrigo
PRGO
$1.74B
| $317K | ﹤0.01% |
7,835
+1,050
| +15% | +$45.1K |
|
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HF
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.