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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
+6.55%
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
$25.7B
AUM Growth
-$2.19B
Cap. Flow
-$3.7B
Cap. Flow %
-14.37%
Top 10 Hldgs %
17.87%
Holding
463
New
30
Increased
148
Reduced
245
Closed
36

Top Buys

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$206M
2
TD icon
Toronto Dominion Bank
TD
+$161M
3
ROG icon
Rogers Corp
ROG
+$150M
4
CRL icon
Charles River Laboratories
CRL
+$148M
5
DPZ icon
Domino's
DPZ
+$132M

Top Sells

Rank Stock Value
1
WP
Worldpay, Inc.
WP
+$346M
2
SBAC icon
SBA Communications
SBAC
+$258M
3
CNC icon
Centene
CNC
+$212M
4
ALGN icon
Align Technology
ALGN
+$207M
5
BABA icon
Alibaba
BABA
+$194M

Sector Composition

Rank Sector Weight
1 Financials 14.64%
2 Consumer Discretionary 14.51%
3 Technology 13.93%
4 Industrials 13.62%
5 Healthcare 11.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BABA icon
1
Alibaba
BABA
$317B
$917M 3.56%
5,316,185
-1,082,908
-17% -$194M
TSM icon
2
TSMC
TSM
$2.17T
$689M 2.68%
17,377,384
-2,185,874
-11% -$88.6M
SPY icon
3
State Street SPDR S&P 500 ETF Trust
SPY
$810B
$576M 2.24%
2,159,920
+790,996
+58% +$206M
CPRT icon
4
Copart
CPRT
$27.4B
$403M 1.57%
37,352,892
-3,314,488
-8% -$32.3M
CNI icon
5
Canadian National Railway
CNI
$75.7B
$380M 1.48%
4,599,778
-84,932
-2% -$6.84M
BWXT icon
6
BWX Technologies
BWXT
$15.5B
$346M 1.35%
5,727,978
-664,000
-10% -$40M
SU icon
7
Suncor Energy
SU
$73.4B
$346M 1.34%
9,397,122
-361,738
-4% -$12.6M
CSGP icon
8
CoStar Group
CSGP
$12.8B
$339M 1.32%
11,400,310
-2,532,730
-18% -$74.2M
SIX
9
DELISTED
Six Flags Entertainment Corp.
SIX
$301M 1.17%
4,515,844
-895,352
-17% -$57.3M
IWD icon
10
iShares Russell 1000 Value ETF
IWD
$84.2B
$301M 1.17%
2,417,450
-65,750
-3% -$7.97M
DPZ icon
11
Domino's
DPZ
$11.5B
$297M 1.16%
1,573,333
+714,414
+83% +$132M
TD icon
12
Toronto Dominion Bank
TD
$200B
$287M 1.11%
4,885,591
+2,818,050
+136% +$161M
BAP icon
13
Credicorp
BAP
$30.4B
$263M 1.02%
1,270,207
-181,227
-12% -$37.6M
BAH icon
14
Booz Allen Hamilton
BAH
$9.37B
$258M 1%
6,774,293
-780,184
-10% -$29.5M
AMZN icon
15
Amazon
AMZN
$3T
$258M 1%
4,409,760
-1,343,380
-23% -$73.9M
AMG icon
16
Affiliated Managers Group
AMG
$9.6B
$253M 0.98%
1,231,465
-287,907
-19% -$55.8M
BALL icon
17
Ball Corp
BALL
$16.6B
$251M 0.97%
6,619,404
-727,799
-10% -$29.5M
MIDD icon
18
Middleby
MIDD
$5.89B
$248M 0.96%
1,838,775
-100,778
-5% -$12.3M
GOOGL icon
19
Alphabet (Google) Class A
GOOGL
$4.37T
$238M 0.93%
4,521,200
-1,619,220
-26% -$83.6M
GWRE icon
20
Guidewire Software
GWRE
$14.4B
$234M 0.91%
3,155,680
-755,860
-19% -$58.4M
MSFT icon
21
Microsoft
MSFT
$3.76T
$232M 0.9%
2,710,505
-918,608
-25% -$75.4M
ZTS icon
22
Zoetis
ZTS
$30.9B
$232M 0.9%
3,214,832
-1,213,155
-27% -$83.3M
YUMC icon
23
Yum China
YUMC
$16.5B
$225M 0.87%
5,611,509
+912,317
+19% +$37.5M
MMS icon
24
Maximus
MMS
$2.9B
$224M 0.87%
3,129,917
-244,909
-7% -$16.5M
PGR icon
25
Progressive
PGR
$124B
$218M 0.85%
3,867,009
-1,138,571
-23% -$58.9M
1
2 3 4 5

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William Blair Investment Management's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair Investment Management held 463 positions worth $25.7B, down 7.9% from $27.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management withdrew a net $3.7B in Q4 2017, closing 36 positions and reducing 245 holdings. Its most notable exit was Worldpay, Inc., an estimated $346M position sold in full.

By sector, the portfolio is most concentrated in Financials at 15% of assets, up from 13% a quarter earlier, followed by Consumer Discretionary and Technology.

Against the trend, William Blair Investment Management opened a new position in Teledyne Technologies worth $121M.

  • William Blair Investment Management's largest Q4 2017 buy was Teledyne Technologies: 669,495 shares worth $121M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q4 2017, an estimated $206M increase.
  • William Blair Investment Management's biggest Q4 2017 reduction was SBA Communications, cutting an estimated $258M.
  • William Blair Investment Management fully exited Worldpay, Inc. in Q4 2017, selling an estimated $346M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $25.7B portfolio in Q4 2017.
  • William Blair Investment Management opened 30 new positions and closed 36 in Q4 2017.
  • William Blair Investment Management's portfolio value fell 7.9% quarter-over-quarter to $25.7B.

Based on William Blair Investment Management's 13F filing for Q4 2017, filed 14 Feb 2018.