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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+6.74%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$24.7B
AUM Growth
-$24.3B
Cap. Flow
-$25.2B
Cap. Flow %
-102.22%
Top 10 Hldgs %
14.96%
Holding
1,115
New
48
Increased
227
Reduced
160
Closed
671

Sector Composition

Rank Sector Weight
1 Healthcare 13.37%
2 Financials 12.97%
3 Consumer Discretionary 12.77%
4 Industrials 11.86%
5 Technology 11.78%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
STLD icon
401
Steel Dynamics
STLD
$37.8B
$466K ﹤0.01%
26,078
-20,728
-44% -$371K
HOLX
402
DELISTED
Hologic
HOLX
$439K ﹤0.01%
11,346
-9,006
-44% -$350K
PTEN icon
403
Patterson-UTI
PTEN
$4.22B
$409K ﹤0.01%
27,102
-16,057
-37% -$247K
VRNS icon
404
Varonis Systems
VRNS
$4.84B
$408K ﹤0.01%
65,091
VWO icon
405
Vanguard FTSE Emerging Markets ETF
VWO
$125B
$373K ﹤0.01%
11,400
+1,400
+14% +$48.2K
MIK
406
DELISTED
Michaels Stores, Inc
MIK
$370K ﹤0.01%
16,746
-13,423
-44% -$301K
OFLX icon
407
Omega Flex
OFLX
$302M
$364K ﹤0.01%
11,042
FMC icon
408
FMC
FMC
$1.3B
$351K ﹤0.01%
10,340
-8,214
-44% -$281K
CRS icon
409
Carpenter Technology
CRS
$26.7B
$346K ﹤0.01%
11,434
-9,090
-44% -$300K
ESRX
410
DELISTED
Express Scripts Holding Company
ESRX
$324K ﹤0.01%
3,707
-191
-5% -$16.4K
FLS icon
411
Flowserve
FLS
$10.3B
$309K ﹤0.01%
+7,352
New +$325K
AMP icon
412
Ameriprise Financial
AMP
$49.7B
$274K ﹤0.01%
2,572
-80
-3% -$8.94K
CVX icon
413
Chevron
CVX
$386B
$271K ﹤0.01%
3,008
-170
-5% -$15.3K
CL icon
414
Colgate-Palmolive
CL
$73.6B
$258K ﹤0.01%
3,879
-71
-2% -$4.72K
IWP icon
415
iShares Russell Mid-Cap Growth ETF
IWP
$20.8B
$238K ﹤0.01%
+5,180
New +$241K
WLL
416
DELISTED
Whiting Petroleum Corporation
WLL
$148K ﹤0.01%
52
-42
-45% -$199K
ABM icon
417
ABM Industries
ABM
$2.83B
-692,658
Closed -$18.9M
AMN icon
418
AMN Healthcare
AMN
$1.28B
-14,188
Closed -$426K
BBVA icon
419
Banco Bilbao Vizcaya Argentaria
BBVA
$157B
-182,642
Closed -$1.47M
BHC icon
420
Bausch Health
BHC
$2.33B
-134,098
Closed -$23.9M
CLS icon
421
Celestica
CLS
$39.1B
-206,878
Closed -$2.65M
CVGW
422
DELISTED
Calavo Growers
CVGW
-167,775
Closed -$7.49M
DLR icon
423
Digital Realty Trust
DLR
$70.6B
-470,788
Closed -$8.68M
ESS icon
424
Essex Property Trust
ESS
$18.2B
-6,464
Closed -$1.44M
EWA icon
425
CALL
iShares MSCI Australia ETF
EWA
$1.46B
-2,153,200
Closed -$105M

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William Blair Investment Management's Q4 2015 Portfolio in Review

As of Q4 2015, William Blair Investment Management held 1,115 positions worth $24.7B, down 50% from $49B the previous quarter. Its ten largest holdings account for 15% of the portfolio.

William Blair Investment Management withdrew a net $25.2B in Q4 2015, closing 671 positions and reducing 160 holdings. Its most notable exit was KEURIG GREEN MTN INC, an estimated $118M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 13% of assets, up from 5.3% a quarter earlier, followed by Financials and Consumer Discretionary.

Against the trend, William Blair Investment Management opened a new position in Alphabet (Google) Class A worth $287M.

  • William Blair Investment Management's largest Q4 2015 buy was Alphabet (Google) Class A: 7,377,340 shares worth $287M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q4 2015, an estimated $225M increase.
  • William Blair Investment Management's biggest Q4 2015 reduction was Alphabet (Google) Class C, cutting an estimated $210M.
  • William Blair Investment Management fully exited KEURIG GREEN MTN INC in Q4 2015, selling an estimated $118M.
  • William Blair Investment Management's ten largest holdings make up 15% of its $24.7B portfolio in Q4 2015.
  • William Blair Investment Management opened 48 new positions and closed 671 in Q4 2015.
  • William Blair Investment Management's portfolio value fell 50% quarter-over-quarter to $24.7B.

Based on William Blair Investment Management's 13F filing for Q4 2015, filed 16 Feb 2016.