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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
MUB icon
401
iShares National Muni Bond ETF
MUB
$45.1B
$4.15M 0.03%
37,455
+500
+1% +$55.3K
AIRG icon
402
Airgain
AIRG
$73.4M
$4.15M 0.03%
+461,254
New +$4.2M
BAX icon
403
Baxter International
BAX
$13.5B
$4.13M 0.03%
63,927
+1,096
+2% +$70.4K
CPRT icon
404
Copart
CPRT
$27B
$4.13M 0.03%
382,632
+41,696
+12% +$406K
D icon
405
Dominion Energy
D
$60.8B
$4.12M 0.03%
50,774
+8,530
+20% +$691K
PUK icon
406
Prudential
PUK
$37.6B
$4.09M 0.03%
83,050
+8,028
+11% +$382K
BSFT
407
DELISTED
BroadSoft, Inc.
BSFT
$4.09M 0.03%
74,498
-92,487
-55% -$5.04M
BPL
408
DELISTED
Buckeye Partners, L.P.
BPL
$4.03M 0.03%
81,404
-4,142
-5% -$210K
JCI icon
409
Johnson Controls International
JCI
$88.8B
$3.99M 0.03%
104,755
+64,553
+161% +$2.52M
DE icon
410
Deere & Co
DE
$160B
$3.94M 0.03%
25,174
-1,327
-5% -$186K
SLCA
411
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$3.9M 0.03%
119,887
-20,510
-15% -$654K
IWR icon
412
iShares Russell Mid-Cap ETF
IWR
$56B
$3.88M 0.03%
74,508
+1,016
+1% +$51.6K
PRGO icon
413
Perrigo
PRGO
$1.4B
$3.87M 0.03%
44,358
-6,125
-12% -$526K
MIDD icon
414
Middleby
MIDD
$6.04B
$3.85M 0.03%
28,569
+498
+2% +$60.9K
PHO icon
415
Invesco Water Resources ETF
PHO
$2.01B
$3.83M 0.03%
126,470
+1,025
+0.8% +$30.3K
EEMV icon
416
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.44B
$3.83M 0.03%
62,961
+857
+1% +$51K
HYMB icon
417
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.09B
$3.83M 0.03%
137,474
-6,870
-5% -$192K
JBTM
418
JBT Marel
JBTM
$7.21B
$3.77M 0.03%
33,984
-15,807
-32% -$1.73M
GGT
419
Gabelli Multimedia Trust
GGT
$171M
$3.75M 0.03%
413,208
+27,577
+7% +$245K
CACC icon
420
Credit Acceptance
CACC
$5.95B
$3.74M 0.03%
11,567
– –
NOC icon
421
Northrop Grumman
NOC
$77.1B
$3.74M 0.03%
12,194
+324
+3% +$97.3K
VMC icon
422
Vulcan Materials
VMC
$34.8B
$3.73M 0.03%
29,097
-250
-0.9% -$30.5K
COL
423
DELISTED
Rockwell Collins
COL
$3.73M 0.03%
27,515
-1,395
-5% -$187K
TGT icon
424
Target
TGT
$65.6B
$3.73M 0.03%
57,132
+5,103
+10% +$308K
MFC icon
425
Manulife Financial
MFC
$73.9B
$3.69M 0.03%
177,127
+195
+0.1% +$4.05K
15 16
17
18 19

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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.