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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

Top Sells

Rank Stock Value
1
MTN icon
Vail Resorts
MTN
+$240M
2
TD icon
Toronto Dominion Bank
TD
+$237M
3
SABR icon
Sabre
SABR
+$207M
4
CHKP icon
Check Point Software Technologies
CHKP
+$173M
5
GWRE icon
Guidewire Software
GWRE
+$141M

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
CNO icon
251
CNO Financial Group
CNO
$5.07B
$7.56M 0.04%
610,055
+55,553
+10% +$910K
HELE icon
252
Helen of Troy
HELE
$705M
$7.48M 0.04%
+51,953
New +$8.8M
NBHC icon
253
National Bank Holdings
NBHC
$1.94B
$7.47M 0.04%
312,712
-13,333
-4% -$416K
MUSA icon
254
Murphy USA
MUSA
$10.1B
$7.45M 0.04%
88,262
-18,641
-17% -$1.93M
SSD icon
255
Simpson Manufacturing
SSD
$8.05B
$7.44M 0.04%
+120,005
New +$9.37M
FSS icon
256
Federal Signal
FSS
$7.7B
$7.17M 0.03%
+262,814
New +$8.19M
OCFC icon
257
OceanFirst Financial
OCFC
$1.87B
$7.12M 0.03%
447,391
-18,720
-4% -$395K
HIW icon
258
Highwoods Properties
HIW
$3.52B
$7.07M 0.03%
199,589
-75,844
-28% -$3.47M
STRA icon
259
Strategic Education
STRA
$1.83B
$7.06M 0.03%
+50,523
New +$7.72M
JJSF icon
260
J&J Snack Foods
JJSF
$1.71B
$7.06M 0.03%
58,317
-30,291
-34% -$4.88M
BPFH
261
DELISTED
Boston Private Financial Holdings, Inc.
BPFH
$7.04M 0.03%
984,732
+82,237
+9% +$847K
FNB icon
262
FNB Corp
FNB
$6.91B
$6.96M 0.03%
944,194
-39,055
-4% -$412K
WTFC icon
263
Wintrust Financial
WTFC
$11B
$6.94M 0.03%
211,227
+131,314
+164% +$7.29M
REXR icon
264
Rexford Industrial Realty
REXR
$8.23B
$6.87M 0.03%
167,624
+108,490
+183% +$4.99M
RAMP icon
265
LiveRamp
RAMP
$2.3B
$6.86M 0.03%
208,333
+15,956
+8% +$605K
ROCK icon
266
Gibraltar Industries
ROCK
$1.48B
$6.85M 0.03%
+159,682
New +$7.99M
SPB icon
267
Spectrum Brands
SPB
$2.09B
$6.79M 0.03%
186,722
+116,079
+164% +$6.27M
DNKN
268
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$6.76M 0.03%
+127,355
New +$8.83M
PACW
269
DELISTED
PacWest Bancorp
PACW
$6.73M 0.03%
375,535
+63,275
+20% +$1.98M
BANR icon
270
Banner Corp
BANR
$2.51B
$6.72M 0.03%
203,444
-9,296
-4% -$441K
RNST icon
271
Renasant Corp
RNST
$4B
$6.6M 0.03%
302,339
-13,352
-4% -$396K
SITM icon
272
SiTime
SITM
$20.6B
$6.6M 0.03%
+302,996
New +$7.42M
EXP icon
273
Eagle Materials
EXP
$6.54B
$6.59M 0.03%
112,857
+93,134
+472% +$7.42M
LSI
274
DELISTED
Life Storage, Inc.
LSI
$6.59M 0.03%
+104,483
New +$7.47M
SMTC icon
275
Semtech
SMTC
$12.9B
$6.56M 0.03%
174,920
-8,075
-4% -$365K
9 10
11
12 13

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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.