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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 | |
|---|---|---|---|---|---|---|
426
Vanguard FTSE Europe ETF
VGK
$31B
| $5.77M | 0.02% |
91,542
-6,309
| -6% | -$393K |
|
427
Vanguard Morningstar Mega Cap Growth ETF
MGK
$33.7B
| $5.66M | 0.02% |
136,725
-5,000
| -4% | -$206K |
|
428
Dominion Energy
D
$59.8B
| $5.65M | 0.02% |
74,346
+22,707
| +44% | +$1.65M |
|
429
GSK
GSK
$101B
| $5.61M | 0.02% |
125,839
-7,802
| -6% | -$354K |
|
430
MaxLinear
MXL
$6.74B
| $5.61M | 0.02% |
164,580
-105,815
| -39% | -$3.77M |
|
431
Vertex Pharmaceuticals
VRTX
$133B
| $5.6M | 0.02% |
26,039
-2,370
| -8% | -$521K |
|
432
Southern Company
SO
$106B
| $5.57M | 0.02% |
89,663
-2,489
| -3% | -$149K |
|
433
iShares Russell Mid-Cap ETF
IWR
$57.9B
| $5.57M | 0.02% |
75,327
+474
| +0.6% | +$34.3K |
|
434
Northrop Grumman
NOC
$82B
| $5.54M | 0.02% |
17,102
-484
| -3% | -$146K |
|
|
MRCC
435
DELISTED
Monroe Capital Corp
MRCC
| $5.49M | 0.02% |
547,147
-23,474
| -4% | -$216K |
|
436
CDW
CDW
$17.1B
| $5.47M | 0.02% |
32,981
+1,460
| +5% | +$218K |
|
437
KLA
KLAC
$272B
| $5.37M | 0.02% |
162,650
-5,480
| -3% | -$165K |
|
|
EGIO
438
DELISTED
Edgio, Inc. Common Stock
EGIO
| $5.29M | 0.02% |
37,051
+2,924
| +9% | +$457K |
|
|
ENV
439
DELISTED
ENVESTNET, INC.
ENV
| $5.27M | 0.02% |
72,994
-33,006
| -31% | -$2.57M |
|
440
Fidelity National Financial
FNF
$12.8B
| $5.27M | 0.02% |
134,787
-2,391
| -2% | -$90.8K |
|
441
Vroom Inc
VRM
$52.1M
| $5.25M | 0.02% |
1,685
+852
| +102% | +$2.76M |
|
442
Old Dominion Freight Line
ODFL
$44.1B
| $5.25M | 0.02% |
43,702
+110
| +0.3% | +$11.8K |
|
443
iShares Currency Hedged MSCI EAFE ETF
HEFA
$7.79B
| $5.19M | 0.02% |
157,441
-2,066
| -1% | -$65.9K |
|
|
AZEK
444
DELISTED
The AZEK Co
AZEK
| $5.18M | 0.02% |
123,292
+35,608
| +41% | +$1.52M |
|
|
TMX
445
DELISTED
Terminix Global Holdings, Inc.
TMX
| $5.17M | 0.02% |
108,487
+18,741
| +21% | +$924K |
|
446
Baxter International
BAX
$13.9B
| $5.17M | 0.02% |
61,292
-12,490
| -17% | -$992K |
|
447
iShares National Muni Bond ETF
MUB
$45.9B
| $5.15M | 0.02% |
44,400
-6,661
| -13% | -$777K |
|
448
Constellation Brands
STZ
$22.9B
| $5.1M | 0.02% |
22,377
+342
| +2% | +$77.1K |
|
449
Cannae Holdings
CNNE
$651M
| $5.1M | 0.02% |
128,670
-78
| -0.1% | -$3.15K |
|
450
Southwest Airlines
LUV
$22B
| $5.1M | 0.02% |
83,480
+322
| +0.4% | +$17.1K |
|
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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.