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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
+19.2%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+771.69%
AUM
$23.8B
AUM Growth
+$3.63B
Cap. Flow
+$288M
Cap. Flow %
1.21%
Top 10 Hldgs %
20.04%
Holding
441
New
37
Increased
142
Reduced
223
Closed
35

Top Buys

Rank Stock Value
1
CHKP icon
Check Point Software Technologies
CHKP
+$181M
2
BABA icon
Alibaba
BABA
+$124M
3
EWBC icon
East-West Bancorp
EWBC
+$109M
4
STE icon
Steris
STE
+$94.6M
5
BURL icon
Burlington
BURL
+$87.9M

Top Sells

Rank Stock Value
1
SIX
Six Flags Entertainment Corp.
SIX
+$151M
2
FTNT icon
Fortinet
FTNT
+$108M
3
SU icon
Suncor Energy
SU
+$77.7M
4
WST icon
West Pharmaceutical
WST
+$73.5M
5
WW
WW International
WW
+$59M

Sector Composition

Rank Sector Weight
1 Technology 17.21%
2 Consumer Discretionary 14.5%
3 Healthcare 14.2%
4 Industrials 13.82%
5 Financials 13.22%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BABA icon
1
Alibaba
BABA
$310B
$1.07B 4.51%
5,875,282
+739,531
+14% +$124M
TSM icon
2
TSMC
TSM
$2.17T
$672M 2.83%
16,414,883
+3,021
+0% +$115K
SPY icon
3
State Street SPDR S&P 500 ETF Trust
SPY
$821B
$585M 2.46%
2,070,600
-187,250
-8% -$50.9M
CPRT icon
4
Copart
CPRT
$27B
$404M 1.7%
26,650,716
-195,264
-0.7% -$2.65M
CSGP icon
5
CoStar Group
CSGP
$12.1B
$390M 1.64%
8,364,980
-72,660
-0.9% -$3M
BN icon
6
Brookfield
BN
$109B
$343M 1.44%
20,607,090
+1,183,174
+6% +$18.4M
BAH icon
7
Booz Allen Hamilton
BAH
$8.75B
$337M 1.42%
5,790,318
-116,362
-2% -$6.04M
RCI icon
8
Rogers Communications
RCI
$18.2B
$327M 1.38%
6,079,884
-152,782
-2% -$8.24M
EEFT icon
9
Euronet Worldwide
EEFT
$2.89B
$317M 1.33%
2,220,442
-16,167
-0.7% -$2.02M
BWXT icon
10
BWX Technologies
BWXT
$16B
$315M 1.33%
6,352,778
+13,613
+0.2% +$644K
CNI icon
11
Canadian National Railway
CNI
$76.5B
$307M 1.29%
3,431,077
+121,162
+4% +$10.2M
BALL icon
12
Ball Corp
BALL
$16.8B
$292M 1.23%
5,045,887
-538,647
-10% -$28.7M
VEEV icon
13
Veeva Systems
VEEV
$34.2B
$284M 1.19%
2,235,625
-132,663
-6% -$15M
P
14
Everpure Inc
P
$28.9B
$276M 1.16%
12,650,885
+2,761,026
+28% +$52.5M
BURL icon
15
Burlington
BURL
$23.3B
$266M 1.12%
1,698,826
+545,036
+47% +$87.9M
TD icon
16
Toronto Dominion Bank
TD
$199B
$261M 1.1%
4,806,854
-118,979
-2% -$6.58M
LYV icon
17
Live Nation Entertainment
LYV
$42.9B
$260M 1.09%
4,086,320
-753,955
-16% -$42.8M
BAP icon
18
Credicorp
BAP
$31.5B
$243M 1.02%
1,014,509
-12,665
-1% -$3.02M
ROG icon
19
Rogers Corp
ROG
$2.35B
$241M 1.01%
1,514,044
+72,356
+5% +$9.77M
DPZ icon
20
Domino's
DPZ
$12.2B
$235M 0.99%
911,602
+161,000
+21% +$41.9M
CBOE icon
21
Cboe Global Markets
CBOE
$30.3B
$234M 0.98%
2,451,752
-29,204
-1% -$2.77M
TFX icon
22
Teleflex
TFX
$6.2B
$233M 0.98%
772,725
-13,403
-2% -$3.74M
CVSA
23
Covista Inc
CVSA
$4.37B
$222M 0.93%
4,784,473
-14,923
-0.3% -$718K
MTN icon
24
Vail Resorts
MTN
$5.31B
$215M 0.91%
990,320
+16,322
+2% +$3.33M
TRU icon
25
TransUnion
TRU
$15.4B
$212M 0.89%
3,167,806
+355,272
+13% +$22M
1
2 3 4 5

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William Blair Investment Management's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair Investment Management held 441 positions worth $23.8B, up 18% from $20.1B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q1 2019 filing shows 37 new, 142 increased, 223 reduced and 35 closed positions. Its largest new stake was Steris: 803,400 shares worth $103M. The largest sale was Six Flags Entertainment Corp., an estimated $151M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 16% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q1 2019 buy was Steris: 803,400 shares worth $103M.
  • William Blair Investment Management added most to Check Point Software Technologies in Q1 2019, an estimated $181M increase.
  • William Blair Investment Management's biggest Q1 2019 reduction was WW International, cutting an estimated $59M.
  • William Blair Investment Management fully exited Six Flags Entertainment Corp. in Q1 2019, selling an estimated $151M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $23.8B portfolio in Q1 2019.
  • William Blair Investment Management opened 37 new positions and closed 35 in Q1 2019.
  • William Blair Investment Management's portfolio value rose 18% quarter-over-quarter to $23.8B.

Based on William Blair Investment Management's 13F filing for Q1 2019, filed 10 May 2019.