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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
+23.04%
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
$16.4B
AUM Growth
+$2.69B
Cap. Flow
+$306M
Cap. Flow %
1.86%
Top 10 Hldgs %
21%
Holding
1,770
New
129
Increased
754
Reduced
490
Closed
65

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$65.4M
2
P
Everpure Inc
P
+$35.3M
3
PYPL icon
PayPal
PYPL
+$30.4M
4
BA icon
Boeing
BA
+$28.3M
5
TWLO icon
Twilio
TWLO
+$24.2M

Top Sells

Rank Stock Value
1
TTE icon
TotalEnergies
TTE
+$155M
2
RHT
Red Hat Inc
RHT
+$73.4M
3
ULTI
Ultimate Software Group Inc
ULTI
+$70.6M
4
INGN icon
Inogen
INGN
+$25.8M
5
CELG
Celgene Corp
CELG
+$20.1M

Sector Composition

Rank Sector Weight
1 Technology 22.65%
2 Healthcare 17.38%
3 Financials 12.48%
4 Consumer Discretionary 9.87%
5 Industrials 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UL icon
376
Unilever
UL
$137B
$4.76M 0.03%
73,252
+3,399
+5% +$207K
RDFN
377
DELISTED
Redfin
RDFN
$4.67M 0.03%
230,448
+106,802
+86% +$1.95M
ABB
378
DELISTED
ABB Ltd
ABB
$4.65M 0.03%
246,220
+18,152
+8% +$351K
CDXS icon
379
Codexis
CDXS
$159M
$4.64M 0.03%
226,090
+21,420
+10% +$416K
SCZ icon
380
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.6B
$4.62M 0.03%
80,437
+5,200
+7% +$291K
WES icon
381
Western Midstream Partners
WES
$19.4B
$4.62M 0.03%
+147,267
New +$4.68M
NVRO
382
DELISTED
NEVRO CORP.
NVRO
$4.61M 0.03%
73,719
-15,957
-18% -$750K
RF icon
383
Regions Financial
RF
$26.8B
$4.6M 0.03%
325,189
+12,318
+4% +$189K
ENB icon
384
Enbridge
ENB
$113B
$4.58M 0.03%
126,304
-801
-0.6% -$28.9K
SMFG icon
385
Sumitomo Mitsui Financial
SMFG
$163B
$4.56M 0.03%
649,256
+6,366
+1% +$45.5K
DE icon
386
Deere & Co
DE
$166B
$4.55M 0.03%
28,466
+3,002
+12% +$480K
BDSI
387
DELISTED
BioDelivery Sciences International, Inc.
BDSI
$4.54M 0.03%
857,595
+56,125
+7% +$256K
IWO icon
388
iShares Russell 2000 Growth ETF
IWO
$14.8B
$4.49M 0.03%
22,843
+3,062
+15% +$583K
APTV icon
389
Aptiv
APTV
$9.61B
$4.42M 0.03%
55,672
+4,097
+8% +$315K
TSLA icon
390
Tesla
TSLA
$1.26T
$4.42M 0.03%
237,000
+25,080
+12% +$503K
IWP icon
391
iShares Russell Mid-Cap Growth ETF
IWP
$20.2B
$4.42M 0.03%
65,148
+6,306
+11% +$405K
IX icon
392
ORIX
IX
$44.8B
$4.38M 0.03%
304,390
+24,485
+9% +$361K
VIRT icon
393
Virtu Financial
VIRT
$4.91B
$4.37M 0.03%
184,148
-920
-0.5% -$23.6K
WMB icon
394
Williams Companies
WMB
$87.8B
$4.36M 0.03%
151,736
-4,460
-3% -$120K
KNSL icon
395
Kinsale Capital Group
KNSL
$8.57B
$4.32M 0.03%
62,976
+4,303
+7% +$269K
CARG icon
396
CarGurus
CARG
$3.28B
$4.2M 0.03%
102,123
+5,756
+6% +$225K
BXP icon
397
Boston Properties
BXP
$11B
$4.19M 0.03%
31,281
+1,225
+4% +$157K
WELL icon
398
Welltower
WELL
$170B
$4.16M 0.03%
53,556
+1,265
+2% +$94.9K
HYG icon
399
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$16.6B
$4.14M 0.03%
47,912
-321
-0.7% -$27.3K
RGLD icon
400
Royal Gold
RGLD
$18.5B
$4.13M 0.03%
45,448
-299
-0.7% -$26.1K
14 15
16
17 18

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William Blair & Company's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair & Company held 1,770 positions worth $16.4B, up 20% from $13.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q1 2019 filing shows 129 new, 754 increased, 490 reduced and 65 closed positions. Its largest new stake was Western Midstream Partners: 147,267 shares worth $4.62M. The largest sale was TotalEnergies, an estimated $155M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2019 buy was Western Midstream Partners: 147,267 shares worth $4.62M.
  • William Blair & Company added most to Fiserv Inc in Q1 2019, an estimated $65.4M increase.
  • William Blair & Company's biggest Q1 2019 reduction was TotalEnergies, cutting an estimated $155M.
  • William Blair & Company fully exited MB Financial Corp in Q1 2019, selling an estimated $7.72M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.4B portfolio in Q1 2019.
  • William Blair & Company opened 129 new positions and closed 65 in Q1 2019.
  • William Blair & Company's portfolio value rose 20% quarter-over-quarter to $16.4B.

Based on William Blair & Company's 13F filing for Q1 2019, filed 14 May 2019.