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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
+563.35%
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
COMT icon
626
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$1.19B
$1.49M 0.01%
38,310
-3,766
-9% -$144K
MSM icon
627
MSC Industrial Direct
MSM
$6.91B
$1.49M 0.01%
16,889
-40,158
-70% -$3.42M
GEO icon
628
The GEO Group
GEO
$4.15B
$1.47M 0.01%
58,455
+1,039
+2% +$26.6K
RPM icon
629
RPM International
RPM
$14.9B
$1.46M 0.01%
22,484
+895
+4% +$57.6K
CBM
630
DELISTED
Cambrex Corporation
CBM
$1.46M 0.01%
21,312
-204
-0.9% -$12.6K
CDW icon
631
CDW
CDW
$17.1B
$1.45M 0.01%
16,353
+1,409
+9% +$122K
TIVO
632
DELISTED
Tivo Inc
TIVO
$1.45M 0.01%
116,658
-16,312
-12% -$211K
IJJ icon
633
iShares S&P Mid-Cap 400 Value ETF
IJJ
$8.99B
$1.45M 0.01%
17,346
+8
+0% +$668
XEL icon
634
Xcel Energy
XEL
$48.7B
$1.44M 0.01%
30,591
+140
+0.5% +$6.61K
NUVA
635
DELISTED
NuVasive, Inc.
NUVA
$1.44M 0.01%
20,269
-1,705
-8% -$108K
MGPI icon
636
MGP Ingredients
MGPI
$376M
$1.42M 0.01%
17,951
– –
CNQ icon
637
Canadian Natural Resources
CNQ
$94.9B
$1.41M 0.01%
88,208
-4,924
-5% -$83.4K
WSBC icon
638
WesBanco
WSBC
$4B
$1.41M 0.01%
31,579
+11,211
+55% +$536K
CMI icon
639
Cummins
CMI
$88.7B
$1.4M 0.01%
9,607
+1,584
+20% +$223K
F icon
640
Ford
F
$56.2B
$1.39M 0.01%
150,017
-13,566
-8% -$136K
FUSB icon
641
First US Bancshares
FUSB
$91.1M
$1.36M 0.01%
125,500
– –
VTR icon
642
Ventas
VTR
$47.6B
$1.36M 0.01%
24,949
+2,540
+11% +$147K
BUSE icon
643
First Busey Corp
BUSE
$2.58B
$1.35M 0.01%
+43,645
New +$1.39M
WTFC icon
644
Wintrust Financial
WTFC
$10.7B
$1.35M 0.01%
15,928
-1,123
-7% -$100K
HQH
645
abrdn Healthcare Investors
HQH
$1.32B
$1.35M 0.01%
58,390
-2,120
-4% -$48K
SPG icon
646
Simon Property Group
SPG
$72B
$1.34M 0.01%
7,587
+5,921
+355% +$1.05M
SBAC icon
647
SBA Communications
SBAC
$19.5B
$1.34M 0.01%
8,316
-52,766
-86% -$8.41M
LHX icon
648
L3Harris
LHX
$53.5B
$1.33M 0.01%
7,853
+1,348
+21% +$215K
BAH icon
649
Booz Allen Hamilton
BAH
$9.09B
$1.33M 0.01%
26,737
– –
DPLO
650
DELISTED
DIPLOMAT PHARMACY, INC.
DPLO
$1.32M 0.01%
67,970
-44,259
-39% -$942K
24 25
26
27 28

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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.