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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
+2.33%
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
$25B
AUM Growth
-$1.38B
Cap. Flow
-$1.45B
Cap. Flow %
-5.78%
Top 10 Hldgs %
14.64%
Holding
486
New
45
Increased
126
Reduced
256
Closed
52

Top Buys

Rank Stock Value
1
WAB icon
Wabtec
WAB
+$151M
2
SU icon
Suncor Energy
SU
+$120M
3
TSCO icon
Tractor Supply
TSCO
+$115M
4
TD icon
Toronto Dominion Bank
TD
+$110M
5
CPRT icon
Copart
CPRT
+$109M

Sector Composition

Rank Sector Weight
1 Financials 14.32%
2 Industrials 12.78%
3 Consumer Discretionary 12.31%
4 Healthcare 11.79%
5 Technology 11.36%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
TTWO icon
101
Take-Two Interactive
TTWO
$46.7B
$81.6M 0.33%
1,655,142
+26,801
+2% +$1.27M
FSV icon
102
FirstService
FSV
$6.31B
$80.9M 0.32%
1,704,437
-95,341
-5% -$4.17M
IWF icon
103
iShares Russell 1000 Growth ETF
IWF
$127B
$80.6M 0.32%
3,073,964
+1,399,964
+84% +$36.3M
NBIS
104
Nebius Group N.V.
NBIS
$48.2B
$80M 0.32%
3,975,934
+176,295
+5% +$3.47M
FCFS icon
105
FirstCash
FCFS
$9.05B
$79.2M 0.32%
1,684,580
+23,337
+1% +$1.1M
CVSA
106
Covista Inc
CVSA
$4.41B
$79M 0.32%
2,532,065
-144,279
-5% -$3.9M
EXAS
107
DELISTED
Exact Sciences
EXAS
$78.7M 0.31%
5,891,327
+939,270
+19% +$15.2M
IBKC
108
DELISTED
IBERIABANK Corp
IBKC
$78M 0.31%
931,029
+574,745
+161% +$44M
EFX icon
109
Equifax
EFX
$21.4B
$77.4M 0.31%
654,513
-207,173
-24% -$25.3M
TWOU
110
DELISTED
2U Inc
TWOU
$76.9M 0.31%
85,044
+2,742
+3% +$2.79M
MLM icon
111
Martin Marietta Materials
MLM
$33.3B
$76.6M 0.31%
345,680
+68,273
+25% +$14M
ICLR icon
112
Icon
ICLR
$12.7B
$75.5M 0.3%
1,004,249
-246,706
-20% -$19.2M
TTC icon
113
Toro Company
TTC
$9.49B
$75.4M 0.3%
1,347,463
-325,852
-19% -$16.6M
MELI icon
114
Mercado Libre
MELI
$97.5B
$73.7M 0.29%
472,262
+39,407
+9% +$6.51M
FDS icon
115
Factset
FDS
$10.1B
$71.4M 0.29%
436,847
+8,857
+2% +$1.41M
ACN icon
116
Accenture
ACN
$110B
$69.1M 0.28%
590,278
+136,406
+30% +$16.2M
GKOS icon
117
Glaukos
GKOS
$10.7B
$67.2M 0.27%
1,959,774
+883,914
+82% +$30.3M
LOW icon
118
Lowe's Companies
LOW
$125B
$65.4M 0.26%
919,120
-382,878
-29% -$27.1M
JPM icon
119
JPMorgan Chase
JPM
$959B
$65M 0.26%
+753,642
New +$57.5M
BLK icon
120
Blackrock
BLK
$178B
$64.9M 0.26%
170,458
+35,264
+26% +$12.9M
AMED
121
DELISTED
Amedisys
AMED
$64.4M 0.26%
1,509,937
+480,150
+47% +$20.4M
WNS
122
DELISTED
WNS Holdings
WNS
$62.6M 0.25%
2,271,416
+77,831
+4% +$2.1M
FMX icon
123
Fomento Económico Mexicano
FMX
$40.2B
$62.4M 0.25%
818,723
+82,060
+11% +$7.03M
BWA icon
124
BorgWarner
BWA
$14.1B
$60.3M 0.24%
1,737,604
-732,572
-30% -$23.6M
NDAQ icon
125
Nasdaq
NDAQ
$53.5B
$60M 0.24%
2,682,048
+455,259
+20% +$10M

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William Blair Investment Management's Q4 2016 Portfolio in Review

As of Q4 2016, William Blair Investment Management held 486 positions worth $25B, down 5.2% from $26.4B the previous quarter. Its ten largest holdings account for 15% of the portfolio.

William Blair Investment Management withdrew a net $1.45B in Q4 2016, closing 52 positions and reducing 256 holdings. Its most notable exit was iShares MSCI Emerging Markets ETF, an estimated $166M position sold in full.

By sector, the portfolio is most concentrated in Financials at 14% of assets, up from 12% a quarter earlier, followed by Industrials and Consumer Discretionary.

Against the trend, William Blair Investment Management opened a new position in Yum China worth $91.9M.

  • William Blair Investment Management's largest Q4 2016 buy was Yum China: 3,628,174 shares worth $91.9M.
  • William Blair Investment Management added most to Wabtec in Q4 2016, an estimated $151M increase.
  • William Blair Investment Management's biggest Q4 2016 reduction was NXP Semiconductors, cutting an estimated $295M.
  • William Blair Investment Management fully exited iShares MSCI Emerging Markets ETF in Q4 2016, selling an estimated $166M.
  • William Blair Investment Management's ten largest holdings make up 15% of its $25B portfolio in Q4 2016.
  • William Blair Investment Management opened 45 new positions and closed 52 in Q4 2016.
  • William Blair Investment Management's portfolio value fell 5.2% quarter-over-quarter to $25B.

Based on William Blair Investment Management's 13F filing for Q4 2016, filed 14 Feb 2017.