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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+7.98%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$31.9B
AUM Growth
+$988M
Cap. Flow
-$703M
Cap. Flow %
-2.21%
Top 10 Hldgs %
16.59%
Holding
479
New
112
Increased
100
Reduced
249
Closed
14

Top Sells

Rank Stock Value
1
LOPE icon
Grand Canyon Education
LOPE
+$206M
2
ETSY icon
Etsy
ETSY
+$195M
3
AAP icon
Advance Auto Parts
AAP
+$192M
4
BJ icon
BJs Wholesale Club
BJ
+$151M
5
RAMP icon
LiveRamp
RAMP
+$125M

Sector Composition

Rank Sector Weight
1 Technology 25.66%
2 Healthcare 20.52%
3 Industrials 14.68%
4 Consumer Discretionary 14.22%
5 Financials 6.61%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
COLD icon
251
Americold
COLD
$4.14B
$14.5M 0.05%
382,047
+20,082
+6% +$778K
PDFS icon
252
PDF Solutions
PDFS
$2.18B
$14.3M 0.04%
786,535
-17,713
-2% -$317K
ROK icon
253
Rockwell Automation
ROK
$50.1B
$13.8M 0.04%
48,256
-2,330
-5% -$628K
HR
254
DELISTED
Healthcare Realty Trust Incorporated
HR
$13.5M 0.04%
448,300
-235,298
-34% -$7.33M
WSC icon
255
WillScot Mobile Mini Holdings
WSC
$4.13B
$13.4M 0.04%
481,742
+25,164
+6% +$723K
AMBR
256
Amber International Holding Ltd
AMBR
$123M
$13M 0.04%
118,158
+4,134
+4% +$482K
EWT icon
257
iShares MSCI Taiwan ETF
EWT
$11.4B
$13M 0.04%
+202,709
New +$12.6M
TTWO icon
258
Take-Two Interactive
TTWO
$45.9B
$12.8M 0.04%
72,470
-99,080
-58% -$17.6M
GMED icon
259
Globus Medical
GMED
$11.2B
$12.8M 0.04%
164,719
+8,697
+6% +$618K
Z icon
260
Zillow
Z
$7.52B
$12.7M 0.04%
103,653
-5,005
-5% -$609K
PRMW
261
DELISTED
Primo Water Corporation
PRMW
$12.4M 0.04%
743,572
+38,841
+6% +$657K
AON icon
262
Aon
AON
$75.2B
$12.3M 0.04%
51,579
+2,351
+5% +$575K
LFUS icon
263
Littelfuse
LFUS
$11.8B
$12.2M 0.04%
47,715
-50,986
-52% -$13.3M
VCEL icon
264
Vericel Corp
VCEL
$2.27B
$12M 0.04%
229,128
-9,203
-4% -$524K
NGMS
265
DELISTED
NeoGames S.A. Ordinary Shares
NGMS
$12M 0.04%
194,503
+94,234
+94% +$4.92M
EWZ icon
266
iShares MSCI Brazil ETF
EWZ
$8.58B
$11.5M 0.04%
282,900
-77,700
-22% -$2.93M
HASI icon
267
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.33B
$11.1M 0.03%
197,247
+10,219
+5% +$531K
JNK icon
268
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.31B
$10.7M 0.03%
97,350
-2,810
-3% -$306K
CNC icon
269
Centene
CNC
$32.5B
$10.6M 0.03%
145,082
-7,005
-5% -$480K
SHOP icon
270
Shopify
SHOP
$197B
$10.5M 0.03%
71,850
-22,620
-24% -$2.79M
XLF icon
271
State Street Financial Select Sector SPDR ETF
XLF
$59B
$9.66M 0.03%
263,370
-41,290
-14% -$1.51M
IWO icon
272
iShares Russell 2000 Growth ETF
IWO
$15B
$8.63M 0.03%
27,673
-907
-3% -$273K
ECH icon
273
iShares MSCI Chile ETF
ECH
$1.05B
$8.27M 0.03%
285,400
+158,800
+125% +$4.99M
ASML icon
274
ASML
ASML
$702B
$7.57M 0.02%
10,954
-185
-2% -$122K
PAR icon
275
PAR Technology
PAR
$714M
$7.17M 0.02%
102,461
-4,111
-4% -$291K

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William Blair Investment Management's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair Investment Management held 479 positions worth $31.9B, up 3.2% from $30.9B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management's Q2 2021 filing shows 112 new, 100 increased, 249 reduced and 14 closed positions. Its largest new stake was Fox Factory Holding Corp: 1,625,709 shares worth $253M. The largest sale was Grand Canyon Education, an estimated $206M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair Investment Management's largest Q2 2021 buy was Fox Factory Holding Corp: 1,625,709 shares worth $253M.
  • William Blair Investment Management added most to Denbury Inc. in Q2 2021, an estimated $153M increase.
  • William Blair Investment Management's biggest Q2 2021 reduction was Grand Canyon Education, cutting an estimated $206M.
  • William Blair Investment Management fully exited Proofpoint, Inc. in Q2 2021, selling an estimated $118M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $31.9B portfolio in Q2 2021.
  • William Blair Investment Management opened 112 new positions and closed 14 in Q2 2021.
  • William Blair Investment Management's portfolio value rose 3.2% quarter-over-quarter to $31.9B.

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