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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 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
HYS icon
1401
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.75B
-5,270
Closed -$535K
INCY icon
1402
Incyte
INCY
$24.2B
-3,982
Closed -$465K
IRBT
1403
DELISTED
iRobot
IRBT
-6,328
Closed -$488K
JD icon
1404
JD.com
JD
$44.6B
-7,354
Closed -$281K
JOF
1405
Japan Smaller Capitalization Fund
JOF
$321M
-21,001
Closed -$264K
JPC icon
1406
Nuveen Preferred & Income Opportunities Fund
JPC
$2.89B
-25,160
Closed -$266K
KR icon
1407
Kroger
KR
$35.4B
-19,429
Closed -$390K
KYN icon
1408
Kayne Anderson Energy Infrastructure Fund
KYN
$2.47B
-91,532
Closed -$1.66M
LBRDK icon
1409
Liberty Broadband Class C
LBRDK
$4.88B
-2,165
Closed -$206K
LBTYK icon
1410
Liberty Global Class C
LBTYK
$3.53B
-6,852
Closed -$224K
LTC
1411
LTC Properties
LTC
$2.06B
-4,497
Closed -$211K
MANH icon
1412
Manhattan Associates
MANH
$11.2B
-6,559
Closed -$273K
MD icon
1413
Pediatrix Medical
MD
$2.18B
-9,496
Closed -$409K
MGM icon
1414
MGM Resorts International
MGM
$11.4B
-71,390
Closed -$2.33M
MIN
1415
Aberdeen Intermediate Income Fund
MIN
$274M
-20,155
Closed -$86K
MTB icon
1416
M&T Bank
MTB
$35.7B
-2,577
Closed -$415K
NCZ
1417
Virtus Convertible & Income Fund II
NCZ
$294M
-4,375
Closed -$109K
NERV icon
1418
Minerva Neurosciences
NERV
$185M
-1,250
Closed -$76K
NUV icon
1419
Nuveen Municipal Value Fund
NUV
$1.92B
-232,377
Closed -$2.38M
NZF icon
1420
Nuveen Municipal Credit Income Fund
NZF
$2.4B
-10,610
Closed -$161K
O icon
1421
Realty Income
O
$59.6B
-4,355
Closed -$241K
ODC icon
1422
Oil-Dri
ODC
$1.44B
-9,208
Closed -$225K
OMER icon
1423
Omeros
OMER
$857M
-9,500
Closed -$205K
ACH
1424
Accendra Health
ACH
$237M
-19,516
Closed -$570K
OXLC
1425
Oxford Lane Capital
OXLC
$894M
-37,001
Closed -$1.89M

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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.