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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
PRSP
51
DELISTED
Perspecta Inc. Common Stock
PRSP
$127M 0.62%
6,941,323
+2,615,547
+60% +$62.9M
ETSY icon
52
Etsy
ETSY
$7.34B
$124M 0.6%
3,230,730
+1,041,562
+48% +$50.9M
NATI
53
DELISTED
National Instruments Corp
NATI
$121M 0.59%
3,647,978
+1,258,373
+53% +$50.3M
ADBE icon
54
Adobe
ADBE
$103B
$120M 0.59%
378,126
+5,829
+2% +$1.99M
HALO icon
55
Halozyme
HALO
$11.6B
$118M 0.57%
6,563,606
+232,076
+4% +$4.4M
SEDG icon
56
SolarEdge
SEDG
$1.99B
$117M 0.57%
+1,432,686
New +$152M
IRTC icon
57
iRhythm Holdings
IRTC
$4.14B
$117M 0.57%
1,432,203
+198,149
+16% +$16.4M
AVLR
58
DELISTED
Avalara, Inc.
AVLR
$112M 0.55%
1,505,517
-516,088
-26% -$42.1M
LGND icon
59
Ligand Pharmaceuticals
LGND
$5.82B
$111M 0.54%
2,437,034
+165,823
+7% +$9.4M
VCYT icon
60
Veracyte
VCYT
$3.58B
$108M 0.53%
4,457,011
+887,610
+25% +$22.3M
FSV icon
61
FirstService
FSV
$6.23B
$107M 0.52%
1,385,416
+13,258
+1% +$1.27M
CBOE icon
62
Cboe Global Markets
CBOE
$30.2B
$105M 0.51%
1,181,290
+51,425
+5% +$5.76M
DPZ icon
63
Domino's
DPZ
$11.7B
$101M 0.49%
+311,879
New +$96.2M
CP icon
64
Canadian Pacific Kansas City
CP
$81.8B
$100M 0.49%
2,284,780
-41,240
-2% -$2.03M
PFPT
65
DELISTED
Proofpoint, Inc.
PFPT
$97.9M 0.48%
954,431
-13,818
-1% -$1.61M
ZTS icon
66
Zoetis
ZTS
$30.3B
$96.8M 0.47%
822,562
-3,734
-0.5% -$492K
GLOB icon
67
Globant
GLOB
$1.66B
$96.7M 0.47%
1,099,985
+74,284
+7% +$8.29M
FIS icon
68
Fidelity National Information Services
FIS
$21.7B
$96M 0.47%
789,529
+20,244
+3% +$2.81M
PYPL icon
69
PayPal
PYPL
$50.5B
$96M 0.47%
1,003,061
+21,358
+2% +$2.36M
WEX icon
70
WEX
WEX
$6.54B
$93.7M 0.46%
896,292
+27,015
+3% +$5.04M
HDB icon
71
HDFC Bank
HDB
$118B
$92.8M 0.45%
4,817,302
-476,188
-9% -$12.8M
JLL icon
72
Jones Lang LaSalle
JLL
$16.7B
$92.8M 0.45%
919,086
+67,060
+8% +$10.1M
MELI icon
73
Mercado Libre
MELI
$93.2B
$92.2M 0.45%
188,644
+86,916
+85% +$53.6M
VRNS icon
74
Varonis Systems
VRNS
$4.84B
$92M 0.45%
4,334,877
+66,576
+2% +$1.74M
AAP icon
75
Advance Auto Parts
AAP
$3.23B
$91.8M 0.45%
984,001
+57,963
+6% +$7.51M
1 2
3
4 5

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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.