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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
+7.86%
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
$28.9B
AUM Growth
+$2.01B
Cap. Flow
+$420M
Cap. Flow %
1.46%
Top 10 Hldgs %
17.78%
Holding
509
New
33
Increased
212
Reduced
167
Closed
90

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$228M
2
BN icon
Brookfield
BN
+$96.9M
3
EEFT icon
Euronet Worldwide
EEFT
+$92.3M
4
TFX icon
Teleflex
TFX
+$84.9M
5
P
Everpure Inc
P
+$79.7M

Top Sells

Rank Stock Value
1
YUMC icon
Yum China
YUMC
+$188M
2
CRL icon
Charles River Laboratories
CRL
+$188M
3
FND icon
Floor & Decor
FND
+$129M
4
TWOU
2U Inc
TWOU
+$87.5M
5
MTN icon
Vail Resorts
MTN
+$71.8M

Sector Composition

Rank Sector Weight
1 Technology 16.83%
2 Healthcare 15.47%
3 Industrials 13.49%
4 Consumer Discretionary 13%
5 Financials 12.64%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GDDY icon
26
GoDaddy
GDDY
$11.5B
$237M 0.82%
2,844,698
+113,342
+4% +$8.85M
CVSA
27
Covista Inc
CVSA
$4.39B
$235M 0.81%
4,880,594
+338,066
+7% +$17M
RCI icon
28
Rogers Communications
RCI
$18.7B
$229M 0.79%
+4,461,925
New +$228M
EEFT icon
29
Euronet Worldwide
EEFT
$2.66B
$224M 0.78%
2,238,824
+980,390
+78% +$92.3M
UNH icon
30
UnitedHealth
UNH
$373B
$222M 0.77%
833,073
-28,182
-3% -$7.33M
CBOE icon
31
Cboe Global Markets
CBOE
$29.9B
$221M 0.77%
2,305,008
+738,063
+47% +$74.4M
TRU icon
32
TransUnion
TRU
$15.2B
$219M 0.76%
2,982,041
-166,446
-5% -$12.4M
HYG icon
33
PUT
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$17.9B
$216M 0.75%
+2,504,000
New +$215M
BAP icon
34
Credicorp
BAP
$30.7B
$216M 0.75%
969,650
+53,568
+6% +$12M
ROG icon
35
Rogers Corp
ROG
$2.36B
$215M 0.74%
1,456,264
+92,811
+7% +$12.2M
WEX icon
36
WEX
WEX
$6.38B
$212M 0.73%
1,054,791
+26,661
+3% +$5.11M
HZNP
37
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$208M 0.72%
10,601,147
+663,821
+7% +$12.6M
ZD icon
38
Ziff Davis
ZD
$2.04B
$207M 0.72%
2,874,001
+112,116
+4% +$8.21M
HEI.A icon
39
HEICO Corp Class A
HEI.A
$36.9B
$201M 0.7%
2,661,007
+143,784
+6% +$9.9M
CTLT
40
DELISTED
CATALENT, INC.
CTLT
$199M 0.69%
4,364,177
+920,869
+27% +$38.9M
PODD icon
41
Insulet
PODD
$9.9B
$198M 0.69%
1,871,961
+682,393
+57% +$63.9M
TDY icon
42
Teledyne Technologies
TDY
$32.1B
$197M 0.68%
797,164
+43,167
+6% +$9.84M
IWD icon
43
iShares Russell 1000 Value ETF
IWD
$84.2B
$193M 0.67%
1,528,000
-230,700
-13% -$29M
LOPE icon
44
Grand Canyon Education
LOPE
$3.82B
$193M 0.67%
1,708,980
+99,526
+6% +$11.6M
MTN icon
45
Vail Resorts
MTN
$5.26B
$191M 0.66%
696,771
-249,329
-26% -$71.8M
MA icon
46
Mastercard
MA
$495B
$191M 0.66%
858,684
-47,612
-5% -$9.93M
CE icon
47
Celanese
CE
$4.96B
$191M 0.66%
1,673,878
+77,547
+5% +$8.89M
HXL icon
48
Hexcel
HXL
$7.62B
$187M 0.65%
2,793,700
+149,364
+6% +$10.1M
MLM icon
49
Martin Marietta Materials
MLM
$33.3B
$186M 0.64%
1,021,729
+56,601
+6% +$11.7M
EXAS
50
DELISTED
Exact Sciences
EXAS
$184M 0.64%
2,334,045
+520,579
+29% +$33.9M
1
2
3 4 5

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William Blair Investment Management's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair Investment Management held 509 positions worth $28.9B, up 7.5% from $26.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management's Q3 2018 filing shows 33 new, 212 increased, 167 reduced and 90 closed positions. Its largest new stake was Rogers Communications: 4,461,925 shares worth $229M. The largest sale was Yum China, an estimated $188M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 15% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair Investment Management's largest Q3 2018 buy was Rogers Communications: 4,461,925 shares worth $229M.
  • William Blair Investment Management added most to Brookfield in Q3 2018, an estimated $96.9M increase.
  • William Blair Investment Management's biggest Q3 2018 reduction was Vail Resorts, cutting an estimated $71.8M.
  • William Blair Investment Management fully exited Yum China in Q3 2018, selling an estimated $188M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $28.9B portfolio in Q3 2018.
  • William Blair Investment Management opened 33 new positions and closed 90 in Q3 2018.
  • William Blair Investment Management's portfolio value rose 7.5% quarter-over-quarter to $28.9B.

Based on William Blair Investment Management's 13F filing for Q3 2018, filed 13 Nov 2018.