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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
+10.92%
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
$16.3B
AUM Growth
+$1.62B
Cap. Flow
+$161M
Cap. Flow %
0.98%
Top 10 Hldgs %
21.12%
Holding
1,696
New
110
Increased
623
Reduced
570
Closed
77

Top Buys

Rank Stock Value
1
DLB icon
Dolby
DLB
+$37M
2
DSI icon
iShares MSCI KLD 400 Social ETF
DSI
+$20M
3
PGR icon
Progressive
PGR
+$19.6M
4
KMX icon
CarMax
KMX
+$19.2M
5
TYL icon
Tyler Technologies
TYL
+$18.5M

Top Sells

Rank Stock Value
1
SBUX icon
Starbucks
SBUX
+$35.1M
2
META icon
Meta Platforms (Facebook)
META
+$18.3M
3
INGN icon
Inogen
INGN
+$14.6M
4
MKTX icon
MarketAxess Holdings
MKTX
+$13M
5
PF
Pinnacle Foods, Inc.
PF
+$12.6M

Sector Composition

Rank Sector Weight
1 Technology 21.34%
2 Healthcare 18.9%
3 Financials 12.91%
4 Industrials 9.71%
5 Consumer Discretionary 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MITK icon
1651
Mitek Systems
MITK
$774M
– –
-14,202
Closed -$126K
MJ icon
1652
Amplify Alternative Harvest ETF
MJ
$99.4M
– –
-28
Closed -$10K
MTCH icon
1653
Match Group
MTCH
$8.9B
– –
-8,745
Closed -$339K
MVIS icon
1654
Microvision
MVIS
$74M
– –
-667
Closed -$11K
NATR icon
1655
Nature's Sunshine
NATR
$353M
– –
-12,885
Closed -$120K
NTES icon
1656
NetEase
NTES
$82B
– –
-4,305
Closed -$218K
ORRF icon
1657
Orrstown Financial Services
ORRF
$851M
– –
-7,973
Closed -$207K
PDP icon
1658
Invesco Dorsey Wright Momentum ETF
PDP
$1.5B
– –
-668
Closed -$37K
PGX icon
1659
Invesco Preferred ETF
PGX
$3.8B
– –
-1,870
Closed -$27K
PNQI icon
1660
Invesco NASDAQ Internet ETF
PNQI
$542M
– –
-190
Closed -$5K
ROM icon
1661
ProShares Ultra Technology
ROM
$1.27B
– –
-1,600
Closed -$21K
SCHD icon
1662
Schwab US Dividend Equity ETF
SCHD
$105B
$0 ﹤0.01%
27
– –
SIVR icon
1663
abrdn Physical Silver Shares ETF
SIVR
$4.31B
– –
-10,203
Closed -$160K
SQM icon
1664
Sociedad Química y Minera de Chile
SQM
$20B
– –
-7,389
Closed -$355K
STGW icon
1665
Stagwell
STGW
$2.16B
– –
-11,930
Closed -$55K
TOVX icon
1666
Theriva Biologics
TOVX
$10.3M
– –
-253
Closed -$529K
UPLD icon
1667
Upland Software
UPLD
$12.8M
– –
-1,495
Closed -$514K
URBN icon
1668
Urban Outfitters
URBN
$6.67B
– –
-54,985
Closed -$2.45M
V icon
1669
CALL
Visa
V
$688B
– –
-100
Closed -$13K
VMI icon
1670
Valmont Industries
VMI
$9.58B
– –
-1,344
Closed -$203K
WDC icon
1671
Western Digital
WDC
$179B
– –
-4,076
Closed -$239K
WT icon
1672
WisdomTree
WT
$3.37B
– –
-27,200
Closed -$247K
WYNN icon
1673
Wynn Resorts
WYNN
$10.5B
– –
-1,900
Closed -$318K
X
1674
DELISTED
US Steel
X
– –
-8,522
Closed -$296K
SRCL
1675
CALL
DELISTED
Stericycle Inc
SRCL
– –
-700
Closed -$46K
64 65 66
67
68

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William Blair & Company's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair & Company held 1,696 positions worth $16.3B, up 11% from $14.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q3 2018 filing shows 110 new, 623 increased, 570 reduced and 77 closed positions. Its largest new stake was Marvell Technology: 234,218 shares worth $4.52M. The largest sale was Starbucks, an estimated $35.1M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, up from 20% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2018 buy was Marvell Technology: 234,218 shares worth $4.52M.
  • William Blair & Company added most to Dolby in Q3 2018, an estimated $37M increase.
  • William Blair & Company's biggest Q3 2018 reduction was Starbucks, cutting an estimated $35.1M.
  • William Blair & Company fully exited Williams Partners L.P. in Q3 2018, selling an estimated $7.8M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.3B portfolio in Q3 2018.
  • William Blair & Company opened 110 new positions and closed 77 in Q3 2018.
  • William Blair & Company's portfolio value rose 11% quarter-over-quarter to $16.3B.

Based on William Blair & Company's 13F filing for Q3 2018, filed 13 Nov 2018.