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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 | |
|---|---|---|---|---|---|---|
|
ZEN
476
DELISTED
ZENDESK INC
ZEN
| $4.41M | 0.02% |
33,219
-1,224
| -4% | -$175K |
|
477
Vanguard Russell 2000 ETF
VTWO
$17.5B
| $4.39M | 0.02% |
49,258
+672
| +1% | +$59.2K |
|
478
iShares MSCI KLD 400 Social ETF
DSI
$5.57B
| $4.37M | 0.02% |
57,250
+674
| +1% | +$49.9K |
|
479
Blue Owl Capital
OBDC
$5.86B
| $4.35M | 0.02% |
315,637
+15,593
| +5% | +$212K |
|
480
Clorox
CLX
$12.7B
| $4.34M | 0.02% |
22,516
-35,662
| -61% | -$6.86M |
|
481
W.P. Carey
WPC
$16.2B
| $4.31M | 0.02% |
62,236
+3,738
| +6% | +$251K |
|
482
ConocoPhillips
COP
$150B
| $4.31M | 0.02% |
81,408
-3,494
| -4% | -$172K |
|
483
First Solar
FSLR
$24B
| $4.3M | 0.02% |
49,318
-2,585
| -5% | -$237K |
|
484
WEC Energy
WEC
$35.8B
| $4.27M | 0.02% |
45,668
-4,991
| -10% | -$435K |
|
485
Hubbell
HUBB
$26.9B
| $4.24M | 0.02% |
22,666
+43
| +0.2% | +$7.43K |
|
|
PRO
486
DELISTED
PROS Holdings
PRO
| $4.23M | 0.02% |
99,513
-5,775
| -5% | -$263K |
|
487
Freeport-McMoran
FCX
$95B
| $4.22M | 0.02% |
128,207
+57,008
| +80% | +$1.85M |
|
|
TRHC
488
DELISTED
Tabula Rasa HealthCare, Inc. Common Stock
TRHC
| $4.21M | 0.02% |
91,328
+15,702
| +21% | +$749K |
|
489
Vanguard Industrials ETF
VIS
$8.5B
| $4.2M | 0.02% |
22,175
+7,489
| +51% | +$1.33M |
|
490
L3Harris
LHX
$53.7B
| $4.19M | 0.02% |
20,689
+110
| +0.5% | +$20.6K |
|
491
Vanguard Global ex-US Real Estate ETF
VNQI
$3.52B
| $4.18M | 0.02% |
75,049
-4,713
| -6% | -$258K |
|
|
IMGN
492
DELISTED
Immunogen Inc
IMGN
| $4.18M | 0.02% |
515,800
+305,400
| +145% | +$2.49M |
|
493
Credit Acceptance
CACC
$6.02B
| $4.17M | 0.02% |
11,586
+170
| +1% | +$61.6K |
|
494
Krystal Biotech
KRYS
$9.87B
| $4.17M | 0.02% |
54,166
+18,908
| +54% | +$1.37M |
|
|
MRSH
495
Marsh
MRSH
$89.5B
| $4.16M | 0.02% |
34,139
-4,677
| -12% | -$539K |
|
496
Pure Cycle
PCYO
$274M
| $4.14M | 0.02% |
308,273
-2,482
| -0.8% | -$30.1K |
|
|
AMED
497
DELISTED
Amedisys
AMED
| $4.12M | 0.02% |
15,549
-4,141
| -21% | -$1.17M |
|
498
WillScot Mobile Mini Holdings
WSC
$4.05B
| $4.09M | 0.02% |
147,327
-13
| -0% | -$341 |
|
499
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23.4B
| $4.08M | 0.02% |
74,675
+5,418
| +8% | +$298K |
|
500
Capital One
COF
$136B
| $4.08M | 0.02% |
32,030
-12,006
| -27% | -$1.41M |
|
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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.