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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
+6.55%
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
$25.7B
AUM Growth
-$2.19B
Cap. Flow
-$3.7B
Cap. Flow %
-14.37%
Top 10 Hldgs %
17.87%
Holding
463
New
30
Increased
148
Reduced
245
Closed
36

Top Buys

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$206M
2
TD icon
Toronto Dominion Bank
TD
+$161M
3
ROG icon
Rogers Corp
ROG
+$150M
4
CRL icon
Charles River Laboratories
CRL
+$148M
5
DPZ icon
Domino's
DPZ
+$132M

Top Sells

Rank Stock Value
1
WP
Worldpay, Inc.
WP
+$346M
2
SBAC icon
SBA Communications
SBAC
+$258M
3
CNC icon
Centene
CNC
+$212M
4
ALGN icon
Align Technology
ALGN
+$207M
5
BABA icon
Alibaba
BABA
+$194M

Sector Composition

Rank Sector Weight
1 Financials 14.64%
2 Consumer Discretionary 14.51%
3 Technology 13.93%
4 Industrials 13.62%
5 Healthcare 11.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GOOG icon
126
Alphabet (Google) Class C
GOOG
$4.32T
$61.4M 0.24%
1,174,300
-45,340
-4% -$2.31M
ICLR icon
127
Icon
ICLR
$12.8B
$61.1M 0.24%
544,756
-11,540
-2% -$1.33M
NUS icon
128
Nu Skin
NUS
$255M
$60M 0.23%
879,739
-63
-0% -$4.08K
AAMI
129
Acadian Asset Management
AAMI
$3.23B
$59.6M 0.23%
3,558,745
+153,569
+5% +$2.44M
CABO icon
130
Cable One
CABO
$201M
$57.8M 0.22%
82,166
+49
+0.1% +$34.5K
EOG icon
131
EOG Resources
EOG
$74B
$57.8M 0.22%
535,465
+105,426
+25% +$10.6M
XYL icon
132
Xylem
XYL
$28.5B
$57.7M 0.22%
846,330
-284,551
-25% -$18.9M
XLE icon
133
State Street Energy Select Sector SPDR ETF
XLE
$39.1B
$56.6M 0.22%
1,567,800
+7,000
+0.4% +$241K
GGAL icon
134
Galicia Financial Group
GGAL
$7.36B
$56.4M 0.22%
856,310
+546,230
+176% +$31.3M
SCCO icon
135
Southern Copper
SCCO
$169B
$56.2M 0.22%
1,277,260
+130,522
+11% +$5.24M
TFX icon
136
Teleflex
TFX
$5.94B
$53.2M 0.21%
+213,659
New +$53.7M
FITB
137
Fifth Third Bancorp
FITB
$51.5B
$53M 0.21%
1,747,179
-89,601
-5% -$2.61M
KMX icon
138
CarMax
KMX
$8.37B
$53M 0.21%
826,058
-419,671
-34% -$29.9M
RSX
139
DELISTED
VanEck Russia ETF
RSX
$52.8M 0.21%
2,491,200
+19,700
+0.8% +$432K
BSAC icon
140
Banco Santander Chile
BSAC
$16.7B
$52.7M 0.2%
1,686,291
-661,328
-28% -$19.8M
BMRN icon
141
BioMarin Pharmaceuticals
BMRN
$13B
$51.5M 0.2%
577,676
-412,585
-42% -$35.9M
GKOS icon
142
Glaukos
GKOS
$10.8B
$50.8M 0.2%
1,979,960
+137,969
+7% +$4.11M
BMA icon
143
Banco Macro
BMA
$5.26B
$49M 0.19%
422,956
-8,243
-2% -$966K
XLF icon
144
State Street Financial Select Sector SPDR ETF
XLF
$58.9B
$48.9M 0.19%
1,753,700
+874,500
+99% +$23.5M
SUPV
145
Grupo Supervielle
SUPV
$737M
$48.2M 0.19%
1,643,382
+951,932
+138% +$25.3M
TMO icon
146
Thermo Fisher Scientific
TMO
$220B
$48M 0.19%
252,723
-5,108
-2% -$979K
RAMP icon
147
LiveRamp
RAMP
$2.3B
$46.8M 0.18%
1,697,344
-310,047
-15% -$8.14M
BIIB icon
148
Biogen
BIIB
$30.7B
$46.7M 0.18%
146,625
-4,711
-3% -$1.51M
GS icon
149
Goldman Sachs
GS
$301B
$46.6M 0.18%
183,073
-26,690
-13% -$6.55M
HBI
150
DELISTED
Hanesbrands
HBI
$46.1M 0.18%
2,204,878
-2,099,398
-49% -$44.8M
4 5
6
7 8

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William Blair Investment Management's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair Investment Management held 463 positions worth $25.7B, down 7.9% from $27.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management withdrew a net $3.7B in Q4 2017, closing 36 positions and reducing 245 holdings. Its most notable exit was Worldpay, Inc., an estimated $346M position sold in full.

By sector, the portfolio is most concentrated in Financials at 15% of assets, up from 13% a quarter earlier, followed by Consumer Discretionary and Technology.

Against the trend, William Blair Investment Management opened a new position in Teledyne Technologies worth $121M.

  • William Blair Investment Management's largest Q4 2017 buy was Teledyne Technologies: 669,495 shares worth $121M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q4 2017, an estimated $206M increase.
  • William Blair Investment Management's biggest Q4 2017 reduction was SBA Communications, cutting an estimated $258M.
  • William Blair Investment Management fully exited Worldpay, Inc. in Q4 2017, selling an estimated $346M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $25.7B portfolio in Q4 2017.
  • William Blair Investment Management opened 30 new positions and closed 36 in Q4 2017.
  • William Blair Investment Management's portfolio value fell 7.9% quarter-over-quarter to $25.7B.

Based on William Blair Investment Management's 13F filing for Q4 2017, filed 14 Feb 2018.