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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 | |
|---|---|---|---|---|---|---|
501
Glacier Bancorp
GBCI
$6.47B
| $4.02M | 0.02% |
70,365
+18,720
| +36% | +$1.01M |
|
502
US Physical Therapy
USPH
$1.23B
| $4.01M | 0.02% |
38,563
-1,422
| -4% | -$177K |
|
503
Texas Pacific Land
TPL
$23.9B
| $3.98M | 0.02% |
22,527
-540
| -2% | -$67.2K |
|
504
Goldman Sachs BDC
GSBD
$1.11B
| $3.97M | 0.02% |
205,454
+16,343
| +9% | +$306K |
|
505
Leslie's
LESL
$6.93M
| $3.96M | 0.01% |
8,084
+6,750
| +506% | +$3.45M |
|
506
State Street Utilities Select Sector SPDR ETF
XLU
$22.8B
| $3.96M | 0.01% |
123,610
-77,616
| -39% | -$2.41M |
|
507
SolarEdge
SEDG
$1.95B
| $3.95M | 0.01% |
13,754
-2,779
| -17% | -$838K |
|
|
MDLA
508
DELISTED
Medallia, Inc.
MDLA
| $3.94M | 0.01% |
141,177
+24,446
| +21% | +$907K |
|
509
Option Care Health
OPCH
$3.61B
| $3.9M | 0.01% |
219,608
+168,660
| +331% | +$3.16M |
|
510
iShares S&P Mid-Cap 400 Growth ETF
IJK
$11.3B
| $3.88M | 0.01% |
49,577
-69,901
| -59% | -$5.38M |
|
|
BDSI
511
DELISTED
BioDelivery Sciences International, Inc.
BDSI
| $3.88M | 0.01% |
992,769
-26,408
| -3% | -$109K |
|
512
Eversource Energy
ES
$27.1B
| $3.88M | 0.01% |
44,769
+284
| +0.6% | +$24.1K |
|
513
Suncor Energy
SU
$76.1B
| $3.87M | 0.01% |
185,364
-12,497
| -6% | -$245K |
|
514
Bausch Health
BHC
$2.34B
| $3.86M | 0.01% |
121,708
+55,353
| +83% | +$1.62M |
|
515
Alarm.com
ALRM
$2.71B
| $3.86M | 0.01% |
44,702
-1,990
| -4% | -$188K |
|
516
iShares US Medical Devices ETF
IHI
$3.47B
| $3.86M | 0.01% |
70,128
+1,596
| +2% | +$88.5K |
|
517
Corteva
CTVA
$50.3B
| $3.86M | 0.01% |
82,759
-520
| -0.6% | -$23K |
|
518
iShares Russell Mid-Cap Value ETF
IWS
$16B
| $3.85M | 0.01% |
35,206
-28,321
| -45% | -$2.95M |
|
519
Global X US Preferred ETF
PFFD
$2.17B
| $3.81M | 0.01% |
149,518
+9,142
| +7% | +$232K |
|
520
Endava
DAVA
$160M
| $3.8M | 0.01% |
44,873
+19,029
| +74% | +$1.59M |
|
521
Lam Research
LRCX
$425B
| $3.78M | 0.01% |
63,540
-830
| -1% | -$45.2K |
|
522
Digital Realty Trust
DLR
$73.1B
| $3.76M | 0.01% |
26,687
-1,052
| -4% | -$145K |
|
523
Monolithic Power Systems
MPWR
$69.3B
| $3.73M | 0.01% |
10,572
+97
| +0.9% | +$35.3K |
|
|
PLAN
524
DELISTED
Anaplan, Inc.
PLAN
| $3.71M | 0.01% |
68,794
+45,642
| +197% | +$3.08M |
|
525
State Street SPDR Dow Jones Global Real Estate ETF
RWO
$1.29B
| $3.65M | 0.01% |
77,273
-23,511
| -23% | -$1.07M |
|
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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.