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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
SMFG icon
326
Sumitomo Mitsui Financial
SMFG
$164B
$5.78M 0.04%
665,252
+197,397
+42% +$1.6M
GLD icon
327
SPDR Gold Trust
GLD
$131B
$5.77M 0.04%
46,646
-2,495
-5% -$302K
ADI icon
328
Analog Devices
ADI
$179B
$5.77M 0.04%
64,781
+61,400
+1,816% +$5.44M
GM icon
329
General Motors
GM
$80.4B
$5.7M 0.04%
139,110
+11,662
+9% +$506K
III icon
330
Information Services Group
III
$199M
$5.68M 0.04%
1,361,159
+6,800
+0.5% +$28.2K
PSX icon
331
Phillips 66
PSX
$84.9B
$5.64M 0.04%
55,780
-400
-0.7% -$38K
DST
332
DELISTED
DST Systems Inc.
DST
$5.57M 0.04%
89,800
– –
OKE icon
333
Oneok
OKE
$57.2B
$5.55M 0.04%
103,916
-5,180
-5% -$276K
TBF icon
334
ProShares Short 20+ Year Treasury ETF
TBF
$87.9M
$5.55M 0.04%
253,665
+19,260
+8% +$427K
SBAC icon
335
SBA Communications
SBAC
$19.2B
$5.54M 0.04%
33,942
+460
+1% +$73.1K
HAL icon
336
Halliburton
HAL
$26.9B
$5.52M 0.04%
112,991
+6,652
+6% +$293K
CPAY icon
337
Corpay
CPAY
$25B
$5.47M 0.04%
28,442
+13,077
+85% +$2.3M
CBOE icon
338
Cboe Global Markets
CBOE
$32.5B
$5.43M 0.04%
43,602
-48,451
-53% -$5.67M
ITOT icon
339
iShares Core S&P Total US Stock Market ETF
ITOT
$94.3B
$5.43M 0.04%
88,773
+12,224
+16% +$728K
IEFA icon
340
iShares Core MSCI EAFE ETF
IEFA
$190B
$5.42M 0.04%
81,938
+26,598
+48% +$1.73M
AGN
341
DELISTED
Allergan plc
AGN
$5.4M 0.04%
32,993
-29,701
-47% -$5.33M
GLW icon
342
Corning
GLW
$119B
$5.38M 0.04%
168,259
+1,522
+0.9% +$47.9K
PAA icon
343
Plains All American Pipeline
PAA
$17.3B
$5.38M 0.04%
260,492
-38,673
-13% -$788K
XPO icon
344
XPO
XPO
$23.5B
$5.38M 0.04%
169,739
+2,313
+1% +$59.1K
RF icon
345
Regions Financial
RF
$26.4B
$5.37M 0.04%
310,871
-604
-0.2% -$9.66K
MTN icon
346
Vail Resorts
MTN
$5.32B
$5.3M 0.04%
24,959
+6,611
+36% +$1.48M
LQD icon
347
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$34.3B
$5.26M 0.04%
43,300
-2,256
-5% -$273K
WES
348
DELISTED
Western Gas Partners Lp
WES
$5.2M 0.04%
108,045
-2,605
-2% -$124K
HYG icon
349
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$15.9B
$5.19M 0.04%
59,443
-4,796
-7% -$421K
PNR icon
350
Pentair
PNR
$10.4B
$5.17M 0.04%
+109,005
New +$5.1M
12 13
14
15 16

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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.