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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
+7.4%
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
$14.7B
AUM Growth
+$1.4B
Cap. Flow
+$534M
Cap. Flow %
3.62%
Top 10 Hldgs %
19%
Holding
1,488
New
131
Increased
528
Reduced
556
Closed
127

Top Buys

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$138M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$63.1M
3
DVAX
Dynavax Technologies
DVAX
+$39.8M
4
VEU icon
Vanguard FTSE All-World ex-US ETF
VEU
+$27.3M
5
VEEV icon
Veeva Systems
VEEV
+$16.3M

Top Sells

Rank Stock Value
1
ZD icon
Ziff Davis
ZD
+$22.1M
2
GE icon
GE Aerospace
GE
+$19.1M
3
EFX icon
Equifax
EFX
+$17.7M
4
NUVA
NuVasive, Inc.
NUVA
+$17.1M
5
WBA
Walgreens Boots Alliance
WBA
+$13.6M

Sector Composition

Rank Sector Weight
1 Healthcare 17.74%
2 Technology 17.58%
3 Financials 14.76%
4 Industrials 10.83%
5 Consumer Discretionary 9.09%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NSC icon
376
Norfolk Southern
NSC
$75.4B
$4.59M 0.03%
31,649
+1,883
+6% +$253K
AMP icon
377
Ameriprise Financial
AMP
$48.3B
$4.51M 0.03%
26,633
+3,848
+17% +$617K
APPF icon
378
AppFolio
APPF
$6.38B
$4.51M 0.03%
108,725
-5,535
-5% -$248K
SHAK icon
379
Shake Shack
SHAK
$2.53B
$4.46M 0.03%
103,225
-39,205
-28% -$1.52M
ES icon
380
Eversource Energy
ES
$26.9B
$4.45M 0.03%
+70,372
New +$4.45M
MS icon
381
Morgan Stanley
MS
$331B
$4.42M 0.03%
84,315
+3,127
+4% +$158K
MAIN icon
382
Main Street Capital
MAIN
$5.06B
$4.41M 0.03%
110,958
-4,997
-4% -$201K
VIRT icon
383
Virtu Financial
VIRT
$5.11B
$4.4M 0.03%
240,592
-26,955
-10% -$437K
BDSI
384
DELISTED
BioDelivery Sciences International, Inc.
BDSI
$4.4M 0.03%
1,492,355
-6,242
-0.4% -$17.3K
PETX
385
DELISTED
Aratana Therapeutics, Inc.
PETX
$4.37M 0.03%
830,265
+39,432
+5% +$241K
CDK
386
DELISTED
CDK Global, Inc.
CDK
$4.36M 0.03%
61,168
-1,511
-2% -$101K
EXP icon
387
Eagle Materials
EXP
$6.29B
$4.36M 0.03%
38,465
-3,550
-8% -$384K
SPSB icon
388
State Street SPDR Portfolio Short Term Corporate Bond ETF
SPSB
$10.4B
$4.35M 0.03%
143,116
+112,933
+374% +$3.45M
BLBD icon
389
Blue Bird Corp
BLBD
$2.35B
$4.35M 0.03%
218,496
-752
-0.3% -$14.9K
XLE icon
390
State Street Energy Select Sector SPDR ETF
XLE
$39.6B
$4.32M 0.03%
119,420
+54,252
+83% +$1.87M
AVY icon
391
Avery Dennison
AVY
$13B
$4.3M 0.03%
37,471
-5,228
-12% -$565K
ENB icon
392
Enbridge
ENB
$119B
$4.3M 0.03%
109,898
-12,820
-10% -$493K
YELP icon
393
Yelp
YELP
$1.45B
$4.28M 0.03%
102,095
+79,805
+358% +$3.55M
SHLX
394
DELISTED
Shell Midstream Partners, L.P.
SHLX
$4.24M 0.03%
142,182
-12,260
-8% -$333K
TRV icon
395
Travelers Companies
TRV
$78.1B
$4.2M 0.03%
30,969
+172
+0.6% +$22.7K
EGRX
396
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
$4.2M 0.03%
78,629
+7,054
+10% +$393K
STKL
397
DELISTED
SunOpta
STKL
$4.19M 0.03%
540,511
+98,419
+22% +$821K
LMT icon
398
Lockheed Martin
LMT
$134B
$4.17M 0.03%
13,004
+845
+7% +$266K
K
399
DELISTED
Kellanova
K
$4.17M 0.03%
65,384
+15,970
+32% +$961K
SCHP icon
400
Schwab US TIPS ETF
SCHP
$16.3B
$4.17M 0.03%
150,310
+79,000
+111% +$2.18M
14 15
16
17 18

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William Blair & Company's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair & Company held 1,488 positions worth $14.7B, up 10% from $13.3B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair & Company deployed $534M of net new capital in Q4 2017, opening 131 new positions and adding to 528 existing holdings. Its largest new stake was Dynavax Technologies: 1,980,526 shares worth $37M.

By sector, the portfolio is most concentrated in Healthcare at 18% of assets, down from 19% a quarter earlier, followed by Technology and Financials.

On the sell side, the largest reduction was Ziff Davis, an estimated $22.1M trimmed.

  • William Blair & Company's largest Q4 2017 buy was Dynavax Technologies: 1,980,526 shares worth $37M.
  • William Blair & Company added most to Alphabet (Google) Class C in Q4 2017, an estimated $138M increase.
  • William Blair & Company's biggest Q4 2017 reduction was Ziff Davis, cutting an estimated $22.1M.
  • William Blair & Company fully exited Bob Evans Farms, Inc. in Q4 2017, selling an estimated $12.5M.
  • William Blair & Company's ten largest holdings make up 19% of its $14.7B portfolio in Q4 2017.
  • William Blair & Company opened 131 new positions and closed 127 in Q4 2017.
  • William Blair & Company's portfolio value rose 10% quarter-over-quarter to $14.7B.

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