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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
-12.38%
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
$16B
AUM Growth
-$3.46B
Cap. Flow
-$518M
Cap. Flow %
-3.24%
Top 10 Hldgs %
25.29%
Holding
1,819
New
100
Increased
562
Reduced
749
Closed
158

Top Buys

Rank Stock Value
1
VEA icon
Vanguard FTSE Developed Markets ETF
VEA
+$57.8M
2
AMZN icon
Amazon
AMZN
+$38M
3
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$33.7M
4
EXEL icon
Exelixis
EXEL
+$33.4M
5
WDAY icon
Workday
WDAY
+$33.3M

Top Sells

Rank Stock Value
1
VEU icon
Vanguard FTSE All-World ex-US ETF
VEU
+$51.6M
2
RTN
Raytheon Company
RTN
+$47.8M
3
BFAM icon
Bright Horizons
BFAM
+$47.6M
4
PLNT icon
Planet Fitness
PLNT
+$39.6M
5
WAB icon
Wabtec
WAB
+$33.6M

Sector Composition

Rank Sector Weight
1 Technology 25.04%
2 Healthcare 18.78%
3 Financials 12.18%
4 Consumer Discretionary 9.78%
5 Industrials 8.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HACK icon
476
Amplify Cybersecurity ETF
HACK
$3.02B
$2.39M 0.01%
67,020
-8,640
-11% -$349K
VTIP icon
477
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.8B
$2.39M 0.01%
49,081
+2,774
+6% +$136K
IHI icon
478
iShares US Medical Devices ETF
IHI
$3.46B
$2.37M 0.01%
63,150
+360
+0.6% +$15.2K
WRK
479
DELISTED
WestRock Company
WRK
$2.37M 0.01%
83,792
-4,990
-6% -$179K
XLC icon
480
State Street Communication Services Select Sector SPDR ETF
XLC
$22.6B
$2.35M 0.01%
53,242
+40,353
+313% +$2.09M
BBY icon
481
Best Buy
BBY
$18B
$2.35M 0.01%
41,263
-749
-2% -$59.4K
GD icon
482
General Dynamics
GD
$106B
$2.34M 0.01%
17,710
-4,284
-19% -$712K
IRTC icon
483
iRhythm Holdings
IRTC
$4.11B
$2.31M 0.01%
28,356
+23,814
+524% +$1.97M
PH icon
484
Parker-Hannifin
PH
$133B
$2.3M 0.01%
17,731
+1,665
+10% +$301K
RSG icon
485
Republic Services
RSG
$66B
$2.3M 0.01%
30,607
+576
+2% +$52.1K
PDP icon
486
Invesco Dorsey Wright Momentum ETF
PDP
$1.54B
$2.29M 0.01%
42,475
+3,965
+10% +$248K
SDC
487
DELISTED
SmileDirectClub, Inc. Class A Common Stock
SDC
$2.27M 0.01%
487,200
+75,816
+18% +$747K
XEL icon
488
Xcel Energy
XEL
$49.4B
$2.25M 0.01%
37,360
+523
+1% +$34.1K
ZBH icon
489
Zimmer Biomet
ZBH
$18.7B
$2.23M 0.01%
22,745
-6,364
-22% -$834K
JBTM
490
JBT Marel
JBTM
$6.01B
$2.23M 0.01%
29,969
-5,593
-16% -$560K
VMC icon
491
Vulcan Materials
VMC
$36.2B
$2.22M 0.01%
20,513
-357
-2% -$45.6K
ARCC icon
492
Ares Capital
ARCC
$14.4B
$2.2M 0.01%
204,164
-9,158
-4% -$154K
ADI icon
493
Analog Devices
ADI
$188B
$2.19M 0.01%
24,390
+4,770
+24% +$521K
MTD icon
494
Mettler-Toledo International
MTD
$28.5B
$2.15M 0.01%
3,107
-977
-24% -$729K
YUMC icon
495
Yum China
YUMC
$16.2B
$2.15M 0.01%
50,307
-199
-0.4% -$8.87K
TLT icon
496
iShares 20+ Year Treasury Bond ETF
TLT
$40.8B
$2.11M 0.01%
12,811
-1,365
-10% -$203K
FND icon
497
Floor & Decor
FND
$6.31B
$2.1M 0.01%
65,588
+10,698
+19% +$499K
EWJ icon
498
iShares MSCI Japan ETF
EWJ
$23.2B
$2.1M 0.01%
42,457
-5,525
-12% -$304K
DD icon
499
DuPont de Nemours
DD
$19.4B
$2.09M 0.01%
48,910
-20,792
-30% -$1.27M
DFS
500
DELISTED
Discover Financial Services
DFS
$2.09M 0.01%
58,648
-1,820
-3% -$121K
18 19
20
21 22

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William Blair & Company's Q1 2020 Portfolio in Review

As of Q1 2020, William Blair & Company held 1,819 positions worth $16B, down 18% from $19.5B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company withdrew a net $518M in Q1 2020, closing 158 positions and reducing 749 holdings. Its most notable exit was Raytheon Company, an estimated $47.8M position sold in full.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 23% a quarter earlier, followed by Healthcare and Financials.

Against the trend, William Blair & Company opened a new position in Canoo Inc. Class A Common Stock worth $4.04M.

  • William Blair & Company's largest Q1 2020 buy was Canoo Inc. Class A Common Stock: 870 shares worth $4.04M.
  • William Blair & Company added most to Vanguard FTSE Developed Markets ETF in Q1 2020, an estimated $57.8M increase.
  • William Blair & Company's biggest Q1 2020 reduction was Vanguard FTSE All-World ex-US ETF, cutting an estimated $51.6M.
  • William Blair & Company fully exited Raytheon Company in Q1 2020, selling an estimated $47.8M.
  • William Blair & Company's ten largest holdings make up 25% of its $16B portfolio in Q1 2020.
  • William Blair & Company opened 100 new positions and closed 158 in Q1 2020.
  • William Blair & Company's portfolio value fell 18% quarter-over-quarter to $16B.

Based on William Blair & Company's 13F filing for Q1 2020, filed 11 May 2020.