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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
MAR icon
151
Marriott International
MAR
$89.9B
$24.7M 0.15%
186,831
+6,439
+4% +$822K
INFO
152
DELISTED
IHS Markit Ltd. Common Shares
INFO
$24.4M 0.15%
452,608
+59,541
+15% +$3.2M
EPD icon
153
Enterprise Products Partners
EPD
$82.5B
$24.4M 0.15%
849,781
+2,158
+0.3% +$62.4K
NKE icon
154
Nike
NKE
$62B
$23.7M 0.15%
280,226
+368
+0.1% +$29.6K
BRK.A icon
155
Berkshire Hathaway Class A
BRK.A
$1.11T
$23.7M 0.15%
74
– –
VZ icon
156
Verizon
VZ
$195B
$23.4M 0.14%
438,884
-9,485
-2% -$502K
MDY icon
157
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.2B
$22.8M 0.14%
61,989
+38,886
+168% +$14.2M
TXN icon
158
Texas Instruments
TXN
$258B
$22.1M 0.14%
206,368
+2,974
+1% +$331K
GBCI icon
159
Glacier Bancorp
GBCI
$6.66B
$22M 0.14%
511,645
+41,550
+9% +$1.81M
IUSV icon
160
iShares Core S&P US Value ETF
IUSV
$27.7B
$22M 0.13%
390,589
+17,633
+5% +$985K
CAT icon
161
Caterpillar
CAT
$406B
$22M 0.13%
144,311
-49,794
-26% -$7.04M
SGEN
162
DELISTED
Seagen Inc. Common Stock
SGEN
$21.8M 0.13%
282,538
-4,993
-2% -$368K
DSI icon
163
iShares MSCI KLD 400 Social ETF
DSI
$5.54B
$21.6M 0.13%
404,566
+380,000
+1,547% +$20M
MMP
164
DELISTED
Magellan Midstream Partners, L.P.
MMP
$21.6M 0.13%
318,326
-3,055
-1% -$212K
VOE icon
165
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24B
$21.4M 0.13%
189,075
+20,157
+12% +$2.29M
AMGN icon
166
Amgen
AMGN
$210B
$21.3M 0.13%
102,928
+12,262
+14% +$2.42M
WST icon
167
West Pharmaceutical
WST
$24.5B
$20.5M 0.13%
166,314
-2,627
-2% -$295K
TEAM icon
168
Atlassian
TEAM
$28B
$20.3M 0.12%
211,496
+153,334
+264% +$12.1M
AXDX
169
DELISTED
Accelerate Diagnostics
AXDX
$20.2M 0.12%
87,866
+23,341
+36% +$5.16M
VOO icon
170
Vanguard S&P 500 ETF
VOO
$1.01T
$20M 0.12%
74,844
+10,791
+17% +$2.82M
VNQ icon
171
Vanguard Real Estate ETF
VNQ
$39.2B
$20M 0.12%
247,632
+3,123
+1% +$257K
PXD
172
DELISTED
Pioneer Natural Resource Co.
PXD
$19.8M 0.12%
113,653
+14,322
+14% +$2.56M
AON icon
173
Aon
AON
$75.1B
$19.5M 0.12%
127,042
-2,260
-2% -$331K
CVS icon
174
CVS Health
CVS
$133B
$19.5M 0.12%
247,967
-7,753
-3% -$554K
TD icon
175
Toronto Dominion Bank
TD
$198B
$19.3M 0.12%
317,020
+20,205
+7% +$1.2M
5 6
7
8 9

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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.