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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
ENV
301
DELISTED
ENVESTNET, INC.
ENV
$7.48M 0.05%
122,680
+750
+0.6% +$45.4K
KSS icon
302
Kohl's
KSS
$2.13B
$7.47M 0.05%
100,238
+627
+0.6% +$47.4K
VXF icon
303
Vanguard Extended Market ETF
VXF
$31.2B
$7.46M 0.05%
60,867
+2,748
+5% +$336K
CPRT icon
304
Copart
CPRT
$26.6B
$7.31M 0.04%
567,308
+172,096
+44% +$2.57M
USMV icon
305
iShares MSCI USA Min Vol Factor ETF
USMV
$24.1B
$7.25M 0.04%
127,032
-8,056
-6% -$449K
ROP icon
306
Roper Technologies
ROP
$38.9B
$7.24M 0.04%
24,427
+346
+1% +$102K
INXN
307
DELISTED
Interxion Holding N.V.
INXN
$7.2M 0.04%
107,028
-8,452
-7% -$548K
EQIX icon
308
Equinix
EQIX
$104B
$7.2M 0.04%
16,630
+669
+4% +$293K
XLNX
309
DELISTED
Xilinx Inc
XLNX
$7.15M 0.04%
89,164
-272
-0.3% -$19.9K
FTNT icon
310
Fortinet
FTNT
$116B
$7.06M 0.04%
382,800
-24,680
-6% -$377K
LFUS icon
311
Littelfuse
LFUS
$11.7B
$7M 0.04%
35,377
+93
+0.3% +$20.5K
MXL icon
312
MaxLinear
MXL
$6.42B
$7M 0.04%
352,028
+1,669
+0.5% +$30.4K
SBNY
313
DELISTED
Signature Bank
SBNY
$6.9M 0.04%
60,100
-37,870
-39% -$4.46M
VOT icon
314
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$19.7B
$6.89M 0.04%
48,374
-487
-1% -$68.2K
MCO icon
315
Moody's
MCO
$81.6B
$6.89M 0.04%
41,217
-925
-2% -$163K
III icon
316
Information Services Group
III
$234M
$6.88M 0.04%
1,439,884
+18,404
+1% +$81.7K
PSX icon
317
Phillips 66
PSX
$82.1B
$6.87M 0.04%
60,946
+4,877
+9% +$564K
WY icon
318
Weyerhaeuser
WY
$18.3B
$6.8M 0.04%
210,644
+5,091
+2% +$177K
OKE icon
319
Oneok
OKE
$55.1B
$6.75M 0.04%
99,630
-1,498
-1% -$103K
IWN icon
320
iShares Russell 2000 Value ETF
IWN
$14.5B
$6.67M 0.04%
50,158
+2,762
+6% +$372K
SNA icon
321
Snap-on
SNA
$21.4B
$6.58M 0.04%
35,845
+879
+3% +$153K
BIIB icon
322
Biogen
BIIB
$30.4B
$6.52M 0.04%
18,449
+2,735
+17% +$942K
GM icon
323
General Motors
GM
$76.2B
$6.49M 0.04%
192,845
+6,087
+3% +$224K
OKTA icon
324
Okta
OKTA
$24.8B
$6.49M 0.04%
92,240
-9,902
-10% -$590K
VB icon
325
Vanguard Morningstar Small-Cap ETF
VB
$81.4B
$6.47M 0.04%
39,807
+1,732
+5% +$280K
11 12
13
14 15

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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.