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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
+8.82%
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
$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
OZK icon
76
Bank OZK
OZK
$5.58B
$120M 0.43%
2,494,365
+19,847
+0.8% +$884K
NATI
77
DELISTED
National Instruments Corp
NATI
$120M 0.43%
2,841,867
-21,176
-0.7% -$862K
RYAAY icon
78
Ryanair
RYAAY
$31B
$118M 0.42%
2,792,313
-1,650
-0.1% -$74.5K
TD icon
79
Toronto Dominion Bank
TD
$201B
$116M 0.42%
2,067,541
+136,332
+7% +$7.16M
EFX icon
80
Equifax
EFX
$21.4B
$115M 0.41%
1,083,903
-66,998
-6% -$8.86M
YELP icon
81
Yelp
YELP
$1.33B
$113M 0.41%
2,620,999
+2,430,390
+1,275% +$93.8M
MELI icon
82
Mercado Libre
MELI
$92.4B
$113M 0.4%
434,926
-62,190
-13% -$16.5M
WEX icon
83
WEX
WEX
$6.37B
$112M 0.4%
+996,030
New +$108M
MIK
84
DELISTED
Michaels Stores, Inc
MIK
$111M 0.4%
5,184,860
+792,541
+18% +$16.1M
TRU icon
85
TransUnion
TRU
$15.2B
$110M 0.4%
2,337,591
-94,731
-4% -$4.33M
MXL icon
86
MaxLinear
MXL
$6.35B
$110M 0.39%
4,626,258
+925,020
+25% +$22.3M
MNST icon
87
Monster Beverage
MNST
$89.6B
$108M 0.39%
3,898,722
-445,638
-10% -$12M
TXN icon
88
Texas Instruments
TXN
$257B
$106M 0.38%
1,186,235
-274,024
-19% -$22.5M
HBI
89
DELISTED
Hanesbrands
HBI
$106M 0.38%
4,304,276
-314,633
-7% -$7.55M
ECPG icon
90
Encore Capital Group
ECPG
$2.07B
$106M 0.38%
2,389,041
+18,949
+0.8% +$768K
HXL icon
91
Hexcel
HXL
$7.68B
$105M 0.38%
1,828,283
-11,533
-0.6% -$621K
UEIC icon
92
Universal Electronics
UEIC
$67.1M
$104M 0.37%
1,639,526
+40,109
+3% +$2.5M
ACHC icon
93
Acadia Healthcare
ACHC
$2.97B
$102M 0.37%
2,139,935
+10,963
+0.5% +$534K
HZNP
94
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$99.8M 0.36%
7,867,665
+5,883,053
+296% +$74.8M
CBOE icon
95
Cboe Global Markets
CBOE
$30.3B
$98.1M 0.35%
911,723
+263
+0% +$25.9K
FMX icon
96
Fomento Económico Mexicano
FMX
$41.2B
$98.1M 0.35%
1,026,840
-60,461
-6% -$6.02M
CXO
97
DELISTED
CONCHO RESOURCES INC.
CXO
$97.2M 0.35%
738,028
+296,451
+67% +$35.7M
NWL icon
98
Newell Brands
NWL
$2.51B
$95.6M 0.34%
2,239,365
-651,034
-23% -$31.8M
CBM
99
DELISTED
Cambrex Corporation
CBM
$95.3M 0.34%
1,732,934
+8,433
+0.5% +$464K
KMX icon
100
CarMax
KMX
$8.38B
$94.4M 0.34%
1,245,729
-86,107
-6% -$5.74M
2 3
4
5 6

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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.