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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+5.95%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$26.2B
AUM Growth
+$458M
Cap. Flow
-$585M
Cap. Flow %
-2.23%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
160
Reduced
224
Closed
36

Top Buys

Rank Stock Value
1
HCSG icon
Healthcare Services Group
HCSG
+$169M
2
WP
Worldpay, Inc.
WP
+$159M
3
CTLT
CATALENT, INC.
CTLT
+$146M
4
PE
PARSLEY ENERGY INC
PE
+$136M
5
P
Everpure Inc
P
+$129M

Top Sells

Rank Stock Value
1
MMS icon
Maximus
MMS
+$224M
2
CNI icon
Canadian National Railway
CNI
+$212M
3
AMG icon
Affiliated Managers Group
AMG
+$199M
4
CSRA
CSRA Inc.
CSRA
+$167M
5
TTWO icon
Take-Two Interactive
TTWO
+$162M

Sector Composition

Rank Sector Weight
1 Technology 14.91%
2 Financials 14.73%
3 Consumer Discretionary 14.13%
4 Industrials 13.07%
5 Healthcare 12.8%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PE
51
DELISTED
PARSLEY ENERGY INC
PE
$149M 0.57%
5,134,901
+5,103,250
+16,124% +$136M
ADBE icon
52
Adobe
ADBE
$105B
$145M 0.56%
673,073
-64,504
-9% -$13.1M
JLL icon
53
Jones Lang LaSalle
JLL
$16.7B
$143M 0.54%
816,999
+46,943
+6% +$7.54M
HGV icon
54
Hilton Grand Vacations
HGV
$3.34B
$143M 0.54%
3,315,313
+209,828
+7% +$9.19M
TFX icon
55
Teleflex
TFX
$5.91B
$142M 0.54%
555,017
+341,358
+160% +$89.7M
CTLT
56
DELISTED
CATALENT, INC.
CTLT
$141M 0.54%
+3,429,054
New +$146M
UNP icon
57
Union Pacific
UNP
$174B
$140M 0.53%
1,039,054
-155,527
-13% -$20.9M
EWBC icon
58
East-West Bancorp
EWBC
$18.2B
$139M 0.53%
2,221,960
+74,915
+3% +$4.91M
DXCM icon
59
DexCom
DXCM
$33.8B
$138M 0.53%
7,435,864
+385,388
+5% +$5.7M
CNI icon
60
Canadian National Railway
CNI
$76.4B
$135M 0.52%
1,854,707
-2,745,071
-60% -$212M
NTES icon
61
NetEase
NTES
$81.9B
$134M 0.51%
2,389,980
+162,655
+7% +$10.2M
CE icon
62
Celanese
CE
$4.92B
$134M 0.51%
1,332,507
+76,970
+6% +$8.12M
TDY icon
63
Teledyne Technologies
TDY
$31.6B
$133M 0.51%
708,129
+38,634
+6% +$7.3M
HZNP
64
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$132M 0.5%
9,309,275
+483,196
+5% +$7.14M
TYL icon
65
Tyler Technologies
TYL
$13.2B
$132M 0.5%
+624,118
New +$125M
P
66
Everpure Inc
P
$36.4B
$131M 0.5%
+6,564,607
New +$129M
VIRT icon
67
Virtu Financial
VIRT
$4.86B
$130M 0.5%
3,951,528
+245,875
+7% +$6.36M
ECPG icon
68
Encore Capital Group
ECPG
$1.98B
$129M 0.49%
2,853,410
+454,843
+19% +$19.5M
ICE icon
69
Intercontinental Exchange
ICE
$84.9B
$128M 0.49%
1,758,432
+13,537
+0.8% +$990K
BN icon
70
Brookfield
BN
$110B
$126M 0.48%
9,082,597
-13,201
-0.1% -$191K
EL icon
71
Estee Lauder
EL
$31.8B
$124M 0.47%
830,109
-98,266
-11% -$13.6M
META icon
72
Meta Platforms (Facebook)
META
$1.53T
$122M 0.47%
763,694
-304,132
-28% -$54.6M
WB icon
73
Weibo
WB
$1.93B
$120M 0.46%
1,002,652
+313,291
+45% +$40M
AXTA icon
74
Axalta
AXTA
$7.98B
$119M 0.45%
3,929,692
+124,500
+3% +$3.89M
NATI
75
DELISTED
National Instruments Corp
NATI
$119M 0.45%
2,344,733
+72,359
+3% +$3.52M
1 2
3
4 5

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William Blair Investment Management's Q1 2018 Portfolio in Review

As of Q1 2018, William Blair Investment Management held 469 positions worth $26.2B, up 1.8% from $25.7B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q1 2018 filing shows 42 new, 160 increased, 224 reduced and 36 closed positions. Its largest new stake was Healthcare Services Group: 3,458,904 shares worth $150M. The largest sale was Maximus, an estimated $224M.

By sector, the portfolio is most concentrated in Technology at 15% of assets, up from 14% a quarter earlier, followed by Financials and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2018 buy was Healthcare Services Group: 3,458,904 shares worth $150M.
  • William Blair Investment Management added most to PARSLEY ENERGY INC in Q1 2018, an estimated $136M increase.
  • William Blair Investment Management's biggest Q1 2018 reduction was Canadian National Railway, cutting an estimated $212M.
  • William Blair Investment Management fully exited Maximus in Q1 2018, selling an estimated $224M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.2B portfolio in Q1 2018.
  • William Blair Investment Management opened 42 new positions and closed 36 in Q1 2018.
  • William Blair Investment Management's portfolio value rose 1.8% quarter-over-quarter to $26.2B.

Based on William Blair Investment Management's 13F filing for Q1 2018, filed 14 May 2018.