We are live on ! Find out more
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
+8.82%
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
$27.9B
AUM Growth
+$434M
Cap. Flow
-$1.39B
Cap. Flow %
-4.97%
Top 10 Hldgs %
16.81%
Holding
485
New
38
Increased
170
Reduced
217
Closed
52

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$124M
2
WEX icon
WEX
WEX
+$108M
3
DXCM icon
DexCom
DXCM
+$100M
4
TSM icon
TSMC
TSM
+$99.8M
5
YELP icon
Yelp
YELP
+$93.8M

Top Sells

Rank Stock Value
1
ORLY icon
O'Reilly Automotive
ORLY
+$155M
2
SBNY
Signature Bank
SBNY
+$152M
3
ODFL icon
Old Dominion Freight Line
ODFL
+$132M
4
BABA icon
Alibaba
BABA
+$128M
5
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$119M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.32%
2 Industrials 13.97%
3 Financials 13.47%
4 Technology 12.68%
5 Healthcare 12.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BABA icon
1
Alibaba
BABA
$276B
$1.11B 3.96%
6,399,093
-788,918
-11% -$128M
TSM icon
2
TSMC
TSM
$1.94T
$735M 2.63%
19,563,258
+2,733,285
+16% +$99.8M
CNI icon
3
Canadian National Railway
CNI
$78.5B
$387M 1.39%
4,684,710
+210,068
+5% +$17M
CSGP icon
4
CoStar Group
CSGP
$12.2B
$374M 1.34%
13,933,040
-583,400
-4% -$16.2M
BWXT icon
5
BWX Technologies
BWXT
$14.4B
$358M 1.28%
6,391,978
-152,803
-2% -$8.11M
SBAC icon
6
SBA Communications
SBAC
$19.8B
$355M 1.27%
2,467,432
-214,659
-8% -$30.6M
CPRT icon
7
Copart
CPRT
$28.5B
$349M 1.25%
40,667,380
-1,438,472
-3% -$11.5M
WP
8
DELISTED
Worldpay, Inc.
WP
$346M 1.24%
4,904,219
-169,847
-3% -$11.6M
SPY icon
9
State Street SPDR S&P 500 ETF Trust
SPY
$771B
$344M 1.23%
1,368,924
-480,800
-26% -$119M
SU icon
10
Suncor Energy
SU
$77.7B
$341M 1.22%
9,758,860
+310,937
+3% +$9.92M
SIX
11
DELISTED
Six Flags Entertainment Corp.
SIX
$330M 1.18%
5,411,196
+302,368
+6% +$17M
CHKP icon
12
Check Point Software Technologies
CHKP
$14.3B
$308M 1.1%
2,698,562
+41,157
+2% +$4.52M
GWRE icon
13
Guidewire Software
GWRE
$13.9B
$305M 1.09%
3,911,540
-375,130
-9% -$27.5M
BALL icon
14
Ball Corp
BALL
$17.5B
$303M 1.09%
7,347,203
-296,958
-4% -$12.2M
MTN icon
15
Vail Resorts
MTN
$5.7B
$303M 1.08%
1,326,702
+66,208
+5% +$14.4M
GOOGL icon
16
Alphabet (Google) Class A
GOOGL
$4.12T
$299M 1.07%
6,140,420
-750,940
-11% -$35.6M
BAP icon
17
Credicorp
BAP
$30.5B
$298M 1.07%
1,451,434
+162,035
+13% +$31.8M
IWD icon
18
iShares Russell 1000 Value ETF
IWD
$81.4B
$294M 1.05%
2,483,200
-121,500
-5% -$14.2M
RHT
19
DELISTED
Red Hat Inc
RHT
$290M 1.04%
2,612,755
-633,034
-20% -$64.8M
AMG icon
20
Affiliated Managers Group
AMG
$9.51B
$288M 1.03%
1,519,372
-26,271
-2% -$4.67M
BAH icon
21
Booz Allen Hamilton
BAH
$8.44B
$282M 1.01%
7,554,477
-308,301
-4% -$10.6M
ZTS icon
22
Zoetis
ZTS
$32.7B
$282M 1.01%
4,427,987
-134,758
-3% -$8.44M
CNC icon
23
Centene
CNC
$30.5B
$279M 1%
5,762,976
-239,310
-4% -$10.3M
AMZN icon
24
Amazon
AMZN
$2.44T
$277M 0.99%
5,753,140
-777,780
-12% -$38.2M
MSFT icon
25
Microsoft
MSFT
$2.9T
$270M 0.97%
3,629,113
-649,648
-15% -$47.5M
1
2 3 4 5

Similar funds

Temasek Holdings
Temasek Holdings Singapore $30.5B AUM 13.98% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $30.6B AUM 57.44% 1-Year Est. Return
Eagle Capital Management (New York)
Eagle Capital Management (New York) New York $29.8B AUM 12.13% 1-Year Est. Return
State of Tennessee, Department of Treasury
State of Tennessee, Department of Treasury Nashville, Tennessee $29.8B AUM 29.48% 1-Year Est. Return
Pzena Investment Management
Pzena Investment Management New York $30.8B AUM 11.29% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Ohio Public Employees Retirement System (OPERS)
Ohio Public Employees Retirement System (OPERS) Columbus, Ohio $30.9B AUM 29.72% 1-Year Est. Return

William Blair Investment Management's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair Investment Management held 485 positions worth $27.9B, up 1.6% from $27.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $1.39B in Q3 2017, closing 52 positions and reducing 217 holdings. Its most notable exit was Amedisys, an estimated $91.9M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, down from 16% a quarter earlier, followed by Industrials and Financials.

Against the trend, William Blair Investment Management opened a new position in Rogers Communications worth $125M.

  • William Blair Investment Management's largest Q3 2017 buy was Rogers Communications: 2,429,600 shares worth $125M.
  • William Blair Investment Management added most to TSMC in Q3 2017, an estimated $99.8M increase.
  • William Blair Investment Management's biggest Q3 2017 reduction was O'Reilly Automotive, cutting an estimated $155M.
  • William Blair Investment Management fully exited Amedisys in Q3 2017, selling an estimated $91.9M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $27.9B portfolio in Q3 2017.
  • William Blair Investment Management opened 38 new positions and closed 52 in Q3 2017.
  • William Blair Investment Management's portfolio value rose 1.6% quarter-over-quarter to $27.9B.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.