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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+10.7%
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
$28.9B
AUM Growth
+$2.35B
Cap. Flow
-$98.3M
Cap. Flow %
-0.34%
Top 10 Hldgs %
23.73%
Holding
1,960
New
105
Increased
655
Reduced
787
Closed
72

Top Buys

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$39.8M
2
ABNB icon
Airbnb
ABNB
+$37.1M
3
GNRC icon
Generac Holdings
GNRC
+$34.4M
4
U icon
Unity
U
+$29.3M
5
TREX icon
Trex
TREX
+$29M

Top Sells

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$87.4M
2
TDOC icon
Teladoc Health
TDOC
+$65.6M
3
VRSK icon
Verisk Analytics
VRSK
+$65M
4
AAPL icon
Apple
AAPL
+$52M
5
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$46.5M

Sector Composition

Rank Sector Weight
1 Technology 25.7%
2 Healthcare 19.69%
3 Financials 11.7%
4 Consumer Discretionary 10.72%
5 Industrials 9.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TRV icon
401
Travelers Companies
TRV
$77.2B
$6.59M 0.02%
44,046
-10,634
-19% -$1.65M
RSI icon
402
Rush Street Interactive
RSI
$2.85B
$6.5M 0.02%
530,592
+2,490
+0.5% +$33.4K
BLBD icon
403
Blue Bird Corp
BLBD
$2.05B
$6.47M 0.02%
260,094
+129,809
+100% +$3.41M
VB icon
404
Vanguard Morningstar Small-Cap ETF
VB
$83.4B
$6.44M 0.02%
28,585
+557
+2% +$123K
STKL
405
DELISTED
SunOpta
STKL
$6.41M 0.02%
523,801
+4,675
+0.9% +$61K
BBY icon
406
Best Buy
BBY
$18B
$6.35M 0.02%
55,194
-1,516
-3% -$177K
CNI icon
407
Canadian National Railway
CNI
$77.2B
$6.31M 0.02%
59,807
-184
-0.3% -$20.3K
IWR icon
408
iShares Russell Mid-Cap ETF
IWR
$58.3B
$6.28M 0.02%
79,261
+3,934
+5% +$305K
MGK icon
409
Vanguard Morningstar Mega Cap Growth ETF
MGK
$34B
$6.28M 0.02%
135,640
-1,085
-0.8% -$47.7K
BSV icon
410
Vanguard Short-Term Bond ETF
BSV
$45.7B
$6.22M 0.02%
75,741
-262,552
-78% -$21.6M
NOBL icon
411
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$12B
$6.19M 0.02%
136,620
+2,320
+2% +$105K
NOC icon
412
Northrop Grumman
NOC
$81.6B
$6.13M 0.02%
16,878
-224
-1% -$80.7K
CHD icon
413
Church & Dwight Co
CHD
$24B
$6.1M 0.02%
71,616
+1,223
+2% +$106K
ABB
414
DELISTED
ABB Ltd
ABB
$6.1M 0.02%
179,377
+27,170
+18% +$908K
JBHT icon
415
JB Hunt Transport Services
JBHT
$26.5B
$6.09M 0.02%
37,393
-6,367
-15% -$1.07M
CAKE icon
416
Cheesecake Factory
CAKE
$5.57B
$6.09M 0.02%
112,396
+9,160
+9% +$530K
CRWD icon
417
CrowdStrike
CRWD
$230B
$6.08M 0.02%
96,792
+30,200
+45% +$1.62M
VGK icon
418
Vanguard FTSE Europe ETF
VGK
$31.1B
$6.08M 0.02%
90,346
-1,196
-1% -$80.7K
ONEM
419
DELISTED
1Life Healthcare
ONEM
$6.08M 0.02%
183,799
-2,035
-1% -$76.8K
CB icon
420
Chubb
CB
$133B
$6.07M 0.02%
38,170
-4,931
-11% -$817K
BP icon
421
BP
BP
$110B
$6.03M 0.02%
228,343
-11,990
-5% -$314K
LYFT icon
422
Lyft
LYFT
$6.48B
$5.98M 0.02%
98,881
-41,816
-30% -$2.41M
ADSK icon
423
Autodesk
ADSK
$54.5B
$5.94M 0.02%
20,361
-462
-2% -$132K
WMG icon
424
Warner Music
WMG
$13.3B
$5.9M 0.02%
163,622
+29,924
+22% +$1.07M
BKNG icon
425
Booking.com
BKNG
$160B
$5.89M 0.02%
67,350
+1,700
+3% +$159K
15 16
17
18 19

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William Blair & Company's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair & Company held 1,960 positions worth $28.9B, up 8.9% from $26.5B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2021 filing shows 105 new, 655 increased, 787 reduced and 72 closed positions. Its largest new stake was Luminar Technologies: 36,860 shares worth $12.1M. The largest sale was Fiserv Inc, an estimated $87.4M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q2 2021 buy was Luminar Technologies: 36,860 shares worth $12.1M.
  • William Blair & Company added most to Ball Corp in Q2 2021, an estimated $39.8M increase.
  • William Blair & Company's biggest Q2 2021 reduction was Fiserv Inc, cutting an estimated $87.4M.
  • William Blair & Company fully exited RealPage, Inc. in Q2 2021, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 24% of its $28.9B portfolio in Q2 2021.
  • William Blair & Company opened 105 new positions and closed 72 in Q2 2021.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $28.9B.

Based on William Blair & Company's 13F filing for Q2 2021, filed 12 Aug 2021.