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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 | |
|---|---|---|---|---|---|---|
301
State Street Industrial Select Sector SPDR ETF
XLI
$34.7B
| $11.3M | 0.04% |
114,534
+1,535
| +1% | +$141K |
|
|
TWOU
302
DELISTED
2U Inc
TWOU
| $11.3M | 0.04% |
9,815
+1,345
| +16% | +$1.7M |
|
303
TJX Companies
TJX
$169B
| $11.2M | 0.04% |
168,932
-3,706
| -2% | -$248K |
|
304
Novartis
NVS
$290B
| $11.1M | 0.04% |
129,969
-23,444
| -15% | -$2.1M |
|
305
Enterprise Products Partners
EPD
$81.9B
| $11.1M | 0.04% |
503,148
-71,763
| -12% | -$1.58M |
|
|
AYX
306
DELISTED
Alteryx Inc
AYX
| $10.8M | 0.04% |
129,759
+81,262
| +168% | +$8.61M |
|
307
Vanguard Extended Market ETF
VXF
$32.1B
| $10.7M | 0.04% |
60,527
-757
| -1% | -$134K |
|
308
State Street Financial Select Sector SPDR ETF
XLF
$59.1B
| $10.5M | 0.04% |
308,887
+97,461
| +46% | +$3.13M |
|
309
Arthur J. Gallagher & Co
AJG
$65.5B
| $10.5M | 0.04% |
83,979
+83
| +0.1% | +$10K |
|
310
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$20B
| $10.4M | 0.04% |
48,359
-1,789
| -4% | -$388K |
|
311
Corning
GLW
$144B
| $10.2M | 0.04% |
234,943
-6,301
| -3% | -$242K |
|
312
Morgan Stanley
MS
$342B
| $10.2M | 0.04% |
131,173
+24,980
| +24% | +$1.91M |
|
313
EOG Resources
EOG
$75.1B
| $10.1M | 0.04% |
138,615
-2,824
| -2% | -$180K |
|
314
Nektar Therapeutics
NKTR
$2.57B
| $10.1M | 0.04% |
33,514
+15,802
| +89% | +$4.92M |
|
315
Iron Mountain
IRM
$37B
| $9.99M | 0.04% |
270,050
-62,431
| -19% | -$2.09M |
|
316
Dover
DOV
$28B
| $9.99M | 0.04% |
72,866
+13,575
| +23% | +$1.73M |
|
317
RH
RH
$3.41B
| $9.94M | 0.04% |
16,660
-810
| -5% | -$399K |
|
|
ONT
318
Onterris Inc
ONT
$576M
| $9.91M | 0.04% |
197,513
+23,440
| +13% | +$990K |
|
319
Vanguard Information Technology ETF
VGT
$149B
| $9.82M | 0.04% |
219,184
+36,816
| +20% | +$1.66M |
|
320
CRISPR Therapeutics
CRSP
$5.22B
| $9.81M | 0.04% |
80,472
+9,637
| +14% | +$1.46M |
|
321
Kinder Morgan
KMI
$70.7B
| $9.8M | 0.04% |
588,817
-2,801
| -0.5% | -$42.8K |
|
322
iShares Russell 2000 Growth ETF
IWO
$15B
| $9.79M | 0.04% |
32,542
-3,045
| -9% | -$945K |
|
323
Canadian Pacific Kansas City
CP
$81.5B
| $9.62M | 0.04% |
126,770
+69,505
| +121% | +$5M |
|
324
Wells Fargo
WFC
$269B
| $9.5M | 0.04% |
243,076
+40,760
| +20% | +$1.44M |
|
|
CAI
325
DELISTED
CAI International, Inc.
CAI
| $9.49M | 0.04% |
208,474
-3,006
| -1% | -$119K |
|
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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.