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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+12.53%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$23.6B
AUM Growth
+$2.6B
Cap. Flow
+$316M
Cap. Flow %
1.34%
Top 10 Hldgs %
26.84%
Holding
1,800
New
126
Increased
679
Reduced
652
Closed
80

Top Buys

Rank Stock Value
1
QDEL icon
QuidelOrtho
QDEL
+$40.3M
2
TDOC icon
Teladoc Health
TDOC
+$32.5M
3
CTAS icon
Cintas
CTAS
+$25.5M
4
ECL icon
Ecolab
ECL
+$25.4M
5
FTV icon
Fortive
FTV
+$24M

Top Sells

Rank Stock Value
1
GS icon
Goldman Sachs
GS
+$46.7M
2
GWRE icon
Guidewire Software
GWRE
+$38.9M
3
ANET icon
Arista Networks
ANET
+$31.4M
4
V icon
Visa
V
+$25.9M
5
PFNX
Pfenex Inc.
PFNX
+$25.4M

Sector Composition

Rank Sector Weight
1 Technology 27.37%
2 Healthcare 19.68%
3 Financials 10.88%
4 Consumer Discretionary 10.56%
5 Industrials 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LPSN icon
226
LivePerson
LPSN
$34.1M
$14.5M 0.06%
18,564
+14,131
+319% +$10.6M
LMT icon
227
Lockheed Martin
LMT
$140B
$14.4M 0.06%
37,573
-230
-0.6% -$87.8K
PM icon
228
Philip Morris
PM
$290B
$13.9M 0.06%
185,551
+5,541
+3% +$427K
KMB icon
229
Kimberly-Clark
KMB
$36.2B
$13.9M 0.06%
94,223
+15,166
+19% +$2.28M
SCHP icon
230
Schwab US TIPS ETF
SCHP
$16.2B
$13.8M 0.06%
448,820
+26,436
+6% +$810K
SHAK icon
231
Shake Shack
SHAK
$2.94B
$13.8M 0.06%
213,962
-31,081
-13% -$1.8M
EEM icon
232
iShares MSCI Emerging Markets ETF
EEM
$30.4B
$13.7M 0.06%
310,591
-2,112
-0.7% -$92.7K
IEFA icon
233
iShares Core MSCI EAFE ETF
IEFA
$196B
$13.5M 0.06%
224,438
-1,131
-0.5% -$68.2K
ILMN icon
234
Illumina
ILMN
$29.1B
$13.2M 0.06%
43,915
-5,563
-11% -$1.92M
VO icon
235
Vanguard Morningstar Mid-Cap ETF
VO
$110B
$13M 0.06%
296,104
-22,960
-7% -$1M
CCOI icon
236
Cogent Communications
CCOI
$525M
$12.8M 0.05%
213,568
+53,190
+33% +$3.88M
WBA
237
DELISTED
Walgreens Boots Alliance
WBA
$12.8M 0.05%
356,654
-30,956
-8% -$1.21M
GLOB icon
238
Globant
GLOB
$1.67B
$12.8M 0.05%
71,279
-620
-0.9% -$107K
MU icon
239
Micron Technology
MU
$1.03T
$12.7M 0.05%
271,116
+81
+0% +$3.92K
MRVL icon
240
Marvell Technology
MRVL
$195B
$12.7M 0.05%
319,265
+5,571
+2% +$205K
TD icon
241
Toronto Dominion Bank
TD
$204B
$12.6M 0.05%
271,928
-24,840
-8% -$1.16M
DVY icon
242
iShares Select Dividend ETF
DVY
$23.7B
$12.4M 0.05%
152,588
+37,995
+33% +$3.17M
IAU icon
243
iShares Gold Trust
IAU
$65.4B
$12.4M 0.05%
343,514
+31,757
+10% +$1.16M
EVBG
244
DELISTED
Everbridge, Inc. Common Stock
EVBG
$12.3M 0.05%
97,449
+7,933
+9% +$1.08M
OMC icon
245
Omnicom Group
OMC
$23.5B
$12.2M 0.05%
247,277
+2,226
+0.9% +$119K
DNKN
246
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$12.1M 0.05%
147,685
+5,448
+4% +$393K
TAN icon
247
Invesco Solar ETF
TAN
$1.37B
$12M 0.05%
184,909
-4,600
-2% -$231K
EFG icon
248
iShares MSCI EAFE Growth ETF
EFG
$17.4B
$11.9M 0.05%
132,095
-8,736
-6% -$774K
IEMG icon
249
iShares Core MSCI Emerging Markets ETF
IEMG
$158B
$11.7M 0.05%
221,509
-27,379
-11% -$1.44M
UN
250
DELISTED
Unilever NV New York Registry Shares
UN
$11.6M 0.05%
192,340
+20,420
+12% +$1.18M
8 9
10
11 12

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William Blair & Company's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair & Company held 1,800 positions worth $23.6B, up 12% from $21B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair & Company's Q3 2020 filing shows 126 new, 679 increased, 652 reduced and 80 closed positions. Its largest new stake was Unity: 72,858 shares worth $6.36M. The largest sale was Goldman Sachs, an estimated $46.7M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 27% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2020 buy was Unity: 72,858 shares worth $6.36M.
  • William Blair & Company added most to QuidelOrtho in Q3 2020, an estimated $40.3M increase.
  • William Blair & Company's biggest Q3 2020 reduction was Goldman Sachs, cutting an estimated $46.7M.
  • William Blair & Company fully exited Pfenex Inc. in Q3 2020, selling an estimated $25.4M.
  • William Blair & Company's ten largest holdings make up 27% of its $23.6B portfolio in Q3 2020.
  • William Blair & Company opened 126 new positions and closed 80 in Q3 2020.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $23.6B.

Based on William Blair & Company's 13F filing for Q3 2020, filed 6 Nov 2020.