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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
-14.67%
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
$20.5B
AUM Growth
-$4.55B
Cap. Flow
-$12.9M
Cap. Flow %
-0.06%
Top 10 Hldgs %
22.75%
Holding
396
New
40
Increased
177
Reduced
118
Closed
57

Top Buys

Rank Stock Value
1
TAL icon
TAL Education Group
TAL
+$224M
2
SEDG icon
SolarEdge
SEDG
+$152M
3
MRCY icon
Mercury Systems
MRCY
+$143M
4
MASI
Masimo
MASI
+$138M
5
BCO icon
Brink's
BCO
+$124M

Sector Composition

Rank Sector Weight
1 Technology 22.09%
2 Healthcare 16.18%
3 Consumer Discretionary 14.43%
4 Industrials 13.27%
5 Financials 9.12%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
ITGR icon
226
Integer Holdings
ITGR
$4.25B
$10.9M 0.05%
173,432
-7,535
-4% -$615K
AXGN icon
227
Axogen
AXGN
$2.67B
$10.8M 0.05%
1,037,800
+115,721
+13% +$1.47M
CNMD icon
228
CONMED
CNMD
$1.48B
$10.4M 0.05%
181,830
-7,886
-4% -$727K
CW icon
229
Curtiss-Wright
CW
$26.7B
$10M 0.05%
108,647
-64,780
-37% -$8.3M
LPSN icon
230
LivePerson
LPSN
$34.1M
$10M 0.05%
29,334
+7,940
+37% +$3.85M
UNF icon
231
Unifirst Corp
UNF
$5.24B
$10M 0.05%
66,163
-11,898
-15% -$2.24M
THG icon
232
Hanover Insurance
THG
$7.74B
$9.9M 0.05%
109,251
+10,776
+11% +$1.33M
VIAV icon
233
Viavi Solutions
VIAV
$10.6B
$9.85M 0.05%
878,727
-38,291
-4% -$521K
QLYS icon
234
Qualys
QLYS
$6.47B
$9.83M 0.05%
113,016
-275,626
-71% -$23.1M
TXNM
235
TXNM Energy Inc
TXNM
$5.91B
$9.62M 0.05%
253,053
-11,471
-4% -$556K
TTC icon
236
Toro Company
TTC
$9.32B
$9.32M 0.05%
143,207
+108,926
+318% +$8.27M
SLGN icon
237
Silgan Holdings
SLGN
$4.3B
$9.29M 0.05%
320,244
-12,742
-4% -$384K
BKH icon
238
Black Hills Corp
BKH
$5.58B
$9.28M 0.05%
144,919
-34,161
-19% -$2.58M
TNC icon
239
Tennant Co
TNC
$1.18B
$9.05M 0.04%
156,215
+109,054
+231% +$8.04M
HMN icon
240
Horace Mann Educators
HMN
$2.09B
$8.8M 0.04%
240,597
+50,196
+26% +$2.07M
WLDN icon
241
Willdan Group
WLDN
$1.29B
$8.72M 0.04%
407,852
-218,302
-35% -$6.72M
PE
242
DELISTED
PARSLEY ENERGY INC
PE
$8.53M 0.04%
1,489,153
-2,843,653
-66% -$38.4M
HWC icon
243
Hancock Whitney
HWC
$6.34B
$8.38M 0.04%
429,414
+61,617
+17% +$2.13M
AAT
244
American Assets Trust
AAT
$1.39B
$8.38M 0.04%
335,055
+46,874
+16% +$1.9M
UMPQ
245
DELISTED
Umpqua Holdings Corp
UMPQ
$8.34M 0.04%
764,979
+219,671
+40% +$3.42M
RDN icon
246
Radian Group
RDN
$4.87B
$8M 0.04%
617,751
-25,382
-4% -$555K
NVR icon
247
NVR
NVR
$16.8B
$7.88M 0.04%
3,067
+235
+8% +$843K
CPK icon
248
Chesapeake Utilities
CPK
$3.25B
$7.84M 0.04%
+91,441
New +$8.49M
SBCF icon
249
Seacoast Banking Corp of Florida
SBCF
$3.44B
$7.74M 0.04%
422,465
-18,934
-4% -$479K
EPI icon
250
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$7.63M 0.04%
471,124
-50,570
-10% -$1.13M

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William Blair Investment Management's Q1 2020 Portfolio in Review

As of Q1 2020, William Blair Investment Management held 396 positions worth $20.5B, down 18% from $25.1B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair Investment Management's Q1 2020 filing shows 40 new, 177 increased, 118 reduced and 57 closed positions. Its largest new stake was SolarEdge: 1,432,686 shares worth $117M. The largest sale was Vail Resorts, an estimated $240M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2020 buy was SolarEdge: 1,432,686 shares worth $117M.
  • William Blair Investment Management added most to TAL Education Group in Q1 2020, an estimated $224M increase.
  • William Blair Investment Management's biggest Q1 2020 reduction was Check Point Software Technologies, cutting an estimated $173M.
  • William Blair Investment Management fully exited Vail Resorts in Q1 2020, selling an estimated $240M.
  • William Blair Investment Management's ten largest holdings make up 23% of its $20.5B portfolio in Q1 2020.
  • William Blair Investment Management opened 40 new positions and closed 57 in Q1 2020.
  • William Blair Investment Management's portfolio value fell 18% quarter-over-quarter to $20.5B.

Based on William Blair Investment Management's 13F filing for Q1 2020, filed 8 May 2020.