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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+4.38%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$61.9B
AUM Growth
+$3.42B
Cap. Flow
+$1.81B
Cap. Flow %
2.93%
Top 10 Hldgs %
6.58%
Holding
2,343
New
217
Increased
904
Reduced
850
Closed
216

Sector Composition

Rank Sector Weight
1 Industrials 8.07%
2 Healthcare 7.65%
3 Consumer Discretionary 6.48%
4 Technology 6.31%
5 Financials 6.3%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
SLAB icon
501
Silicon Laboratories
SLAB
$7.2B
$6.73M 0.01%
141,354
-99,142
-41% -$4.37M
DL
502
DELISTED
China Distance Education Holdings Limited
DL
$6.72M 0.01%
+409,987
New +$6.4M
PNR icon
503
Pentair
PNR
$11B
$6.7M 0.01%
150,142
-8,417
-5% -$370K
CB
504
DELISTED
CHUBB CORPORATION
CB
$6.64M 0.01%
64,218
-3,715
-5% -$370K
SYY icon
505
Sysco
SYY
$40.2B
$6.56M 0.01%
165,277
-404
-0.2% -$15.7K
VGK icon
506
Vanguard FTSE Europe ETF
VGK
$31.1B
$6.38M 0.01%
121,727
-63,517
-34% -$3.4M
XEC
507
DELISTED
CIMAREX ENERGY CO
XEC
$6.32M 0.01%
59,604
-478
-0.8% -$53K
MRCC
508
DELISTED
Monroe Capital Corp
MRCC
$6.3M 0.01%
435,492
+91
+0% +$1.27K
AMT icon
509
American Tower
AMT
$76.5B
$6.28M 0.01%
63,570
+4,076
+7% +$400K
NOV icon
510
NOV
NOV
$6.96B
$6.27M 0.01%
95,682
-39,712
-29% -$2.77M
SPG icon
511
Simon Property Group
SPG
$72.6B
$6.16M 0.01%
33,824
-2,865
-8% -$508K
WPZ
512
DELISTED
WILLIAMS PARTNERS L.P. COM UTS REPTG L.P. INT
WPZ
$6.13M 0.01%
145,424
+2,213
+2% +$104K
IWO icon
513
iShares Russell 2000 Growth ETF
IWO
$15B
$6.12M 0.01%
42,963
-151,253
-78% -$20.5M
ROP icon
514
Roper Technologies
ROP
$38.8B
$6.04M 0.01%
38,608
-960
-2% -$147K
BND icon
515
Vanguard Total Bond Market
BND
$158B
$6.02M 0.01%
73,102
+453
+0.6% +$37.4K
ALL icon
516
Allstate
ALL
$67.9B
$6M 0.01%
85,372
-649
-0.8% -$42.7K
EXC icon
517
Exelon
EXC
$46.8B
$5.96M 0.01%
225,393
-14,277
-6% -$366K
DCI icon
518
Donaldson
DCI
$11.4B
$5.92M 0.01%
153,380
-135,200
-47% -$5.37M
IWS icon
519
iShares Russell Mid-Cap Value ETF
IWS
$15.9B
$5.91M 0.01%
80,065
-3,959
-5% -$285K
VO icon
520
Vanguard Morningstar Mid-Cap ETF
VO
$109B
$5.9M 0.01%
191,120
-1,580
-0.8% -$47.6K
LLY icon
521
Eli Lilly
LLY
$1.03T
$5.87M 0.01%
85,082
+1,471
+2% +$99.3K
HAPN
522
Happen Inc
HAPN
$2.38B
$5.85M 0.01%
+46,261
New +$5.84M
PRTS icon
523
CarParts.com
PRTS
$45.5M
$5.84M 0.01%
249,510
+30,556
+14% +$818K
BIIB icon
524
Biogen
BIIB
$30.8B
$5.81M 0.01%
17,129
+6,912
+68% +$2.24M
RGEN icon
525
Repligen
RGEN
$8.78B
$5.81M 0.01%
293,268
+143,268
+96% +$3.2M

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William Blair & Company's Q4 2014 Portfolio in Review

As of Q4 2014, William Blair & Company held 2,343 positions worth $61.9B, up 5.8% from $58.5B the previous quarter. Its ten largest holdings account for 6.6% of the portfolio.

William Blair & Company's Q4 2014 filing shows 217 new, 904 increased, 850 reduced and 216 closed positions. Its largest new stake was NetEase: 7,341,640 shares worth $146M. The largest sale was Canadian Pacific Kansas City, an estimated $147M.

By sector, the portfolio is most concentrated in Industrials at 8.1% of assets, down from 8.4% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair & Company's largest Q4 2014 buy was NetEase: 7,341,640 shares worth $146M.
  • William Blair & Company added most to TOWERS WATSON & CO COM STK CL A (DE) in Q4 2014, an estimated $164M increase.
  • William Blair & Company's biggest Q4 2014 reduction was Canadian Pacific Kansas City, cutting an estimated $147M.
  • William Blair & Company fully exited Fang Holdings Limited American Depositary Shares (each representing ten Class A Ordinary Shares) in Q4 2014, selling an estimated $46.8M.
  • William Blair & Company's ten largest holdings make up 6.6% of its $61.9B portfolio in Q4 2014.
  • William Blair & Company opened 217 new positions and closed 216 in Q4 2014.
  • William Blair & Company's portfolio value rose 5.8% quarter-over-quarter to $61.9B.

Based on William Blair & Company's 13F filing for Q4 2014, filed 5 Feb 2015.