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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
COR
226
DELISTED
Coresite Realty Corporation
COR
$19M 0.06%
141,215
-25,166
-15% -$3.14M
LPLA icon
227
LPL Financial
LPLA
$29.2B
$18.9M 0.06%
139,870
-205,202
-59% -$29.8M
FOLD
228
DELISTED
Amicus Therapeutics
FOLD
$18.8M 0.06%
1,951,677
+790,953
+68% +$7.72M
SPB icon
229
Spectrum Brands
SPB
$2.02B
$18.7M 0.06%
219,605
+11,473
+6% +$1.01M
WNS
230
DELISTED
WNS Holdings
WNS
$18.4M 0.06%
230,244
-120,661
-34% -$8.96M
WINA icon
231
Winmark
WINA
$1.33B
$18.2M 0.06%
94,865
-3,825
-4% -$744K
EPAM icon
232
EPAM Systems
EPAM
$5.15B
$18.2M 0.06%
35,597
-1,720
-5% -$806K
SITM icon
233
SiTime
SITM
$20.1B
$17.4M 0.05%
137,157
-5,536
-4% -$566K
AZUL
234
DELISTED
Azul
AZUL
$17.3M 0.05%
653,798
+429,928
+192% +$10.3M
DIN icon
235
Dine Brands
DIN
$454M
$17.1M 0.05%
191,317
-78,044
-29% -$7.22M
PACW
236
DELISTED
PacWest Bancorp
PACW
$16.8M 0.05%
408,056
+141,047
+53% +$6.03M
RNG icon
237
RingCentral
RNG
$5.3B
$16.8M 0.05%
57,682
-2,780
-5% -$793K
ARMK icon
238
Aramark
ARMK
$15.9B
$16.4M 0.05%
+609,649
New +$16.7M
IPAR icon
239
Interparfums
IPAR
$3.84B
$16.2M 0.05%
224,698
+59,970
+36% +$4.43M
VITL icon
240
Vital Farms
VITL
$496M
$15.9M 0.05%
+795,191
New +$17.6M
MKSI icon
241
MKS Inc
MKSI
$19.9B
$15.8M 0.05%
+88,902
New +$16.2M
TDY icon
242
Teledyne Technologies
TDY
$31.6B
$15.8M 0.05%
37,680
-1,815
-5% -$771K
MTD icon
243
Mettler-Toledo International
MTD
$28.8B
$15.7M 0.05%
11,326
-555
-5% -$716K
CALY
244
Callaway Golf Company
CALY
$3.01B
$15.5M 0.05%
+458,071
New +$14.7M
SHO icon
245
Sunstone Hotel Investors
SHO
$1.98B
$15.3M 0.05%
1,235,465
+69,646
+6% +$887K
PLAN
246
DELISTED
Anaplan, Inc.
PLAN
$15M 0.05%
281,379
-13,550
-5% -$754K
VERX icon
247
Vertex
VERX
$1.98B
$14.9M 0.05%
681,340
-222,257
-25% -$4.51M
BTRS
248
DELISTED
BTRS Holdings Inc. Class 1 Common Stock
BTRS
$14.7M 0.05%
1,161,139
-46,889
-4% -$677K
VOYA icon
249
Voya Financial
VOYA
$8.9B
$14.6M 0.05%
237,796
+11,285
+5% +$742K
BFLY icon
250
Butterfly Network
BFLY
$2.5B
$14.6M 0.05%
1,007,626
-3,651,910
-78% -$49.3M

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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.