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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
+13.98%
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
$27.3B
AUM Growth
+$3.7B
Cap. Flow
+$865M
Cap. Flow %
3.17%
Top 10 Hldgs %
25.38%
Holding
1,900
New
178
Increased
749
Reduced
623
Closed
72

Top Buys

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$77.8M
2
GD icon
General Dynamics
GD
+$49.6M
3
ROK icon
Rockwell Automation
ROK
+$43.3M
4
LMBS icon
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
+$32.3M
5
JPM icon
JPMorgan Chase
JPM
+$30.6M

Top Sells

Rank Stock Value
1
WORK
Slack Technologies, Inc.
WORK
+$24.2M
2
NTRS icon
Northern Trust
NTRS
+$24.1M
3
BKNG icon
Booking.com
BKNG
+$22.5M
4
EXEL icon
Exelixis
EXEL
+$17.5M
5
DOCU
DocuSign
DOCU
+$15M

Sector Composition

Rank Sector Weight
1 Technology 27.82%
2 Healthcare 18.6%
3 Financials 11.15%
4 Consumer Discretionary 10.38%
5 Industrials 8.96%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RIG icon
1426
Transocean
RIG
$6.43B
$199K ﹤0.01%
86,001
+1,875
+2% +$2.76K
WBD icon
1427
Warner Bros
WBD
$70.1B
$199K ﹤0.01%
6,603
+1,078
+20% +$26.4K
EWO icon
1428
iShares MSCI Austria ETF
EWO
$187M
$198K ﹤0.01%
10,000
– –
FHN icon
1429
First Horizon
FHN
$12.3B
$198K ﹤0.01%
15,510
+2,404
+18% +$28.2K
VRIG icon
1430
Invesco Variable Rate Investment Grade ETF
VRIG
$1.85B
$198K ﹤0.01%
7,935
– –
EWT icon
1431
iShares MSCI Taiwan ETF
EWT
$11.6B
$196K ﹤0.01%
3,684
– –
OXY icon
1432
Occidental Petroleum
OXY
$57.2B
$195K ﹤0.01%
11,237
-4,881
-30% -$66.9K
OR icon
1433
OR Royalties Inc
OR
$6.21B
$194K ﹤0.01%
15,265
– –
AGEN
1434
Agenus
AGEN
$311M
$192K ﹤0.01%
3,074
+146
+5% +$10.8K
QVCGA
1435
DELISTED
QVC Group Inc Series A
QVCGA
$192K ﹤0.01%
350
+120
+52% +$54K
IWX icon
1436
iShares Russell Top 200 Value ETF
IWX
$4.05B
$191K ﹤0.01%
3,305
– –
CTLP
1437
DELISTED
Cantaloupe
CTLP
$190K ﹤0.01%
+18,150
New +$177K
PCY icon
1438
Invesco Emerging Markets Sovereign Debt ETF
PCY
$1.4B
$190K ﹤0.01%
6,597
-235
-3% -$6.56K
TEVA icon
1439
Teva Pharmaceuticals
TEVA
$43.5B
$190K ﹤0.01%
19,688
-24,827
-56% -$238K
MDYV icon
1440
State Street SPDR S&P 400 Mid Cap Value ETF
MDYV
$2.89B
$189K ﹤0.01%
3,398
+2,550
+301% +$129K
WES icon
1441
Western Midstream Partners
WES
$20B
$189K ﹤0.01%
13,653
-801
-6% -$9.2K
EEMV icon
1442
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.61B
$188K ﹤0.01%
3,077
-215
-7% -$12.5K
PRFZ icon
1443
Invesco FTSE RAFI US 1500 Small-Mid ETF
PRFZ
$2.91B
$186K ﹤0.01%
6,150
– –
VPU
1444
Vanguard Utilities ETF
VPU
$8.52B
$186K ﹤0.01%
1,355
-141
-9% -$19.4K
MFNC
1445
DELISTED
Mackinac Financial Corporation
MFNC
$186K ﹤0.01%
14,568
– –
GWRS icon
1446
Global Water Resources
GWRS
$236M
$184K ﹤0.01%
12,775
– –
LSXMA
1447
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$184K ﹤0.01%
5,801
-25
-0.4% -$722
LBRDA icon
1448
Liberty Broadband Class A
LBRDA
$5.19B
$182K ﹤0.01%
1,153
+56
+5% +$8.45K
DTIL icon
1449
Precision BioSciences
DTIL
$205M
$181K ﹤0.01%
+725
New +$178K
EMLP icon
1450
First Trust North American Energy Infrastructure Fund
EMLP
$4.16B
$181K ﹤0.01%
8,655
-14,213
-62% -$295K
56 57
58
59 60

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William Blair & Company's Q4 2020 Portfolio in Review

As of Q4 2020, William Blair & Company held 1,900 positions worth $27.3B, up 16% from $23.6B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company deployed $865M of net new capital in Q4 2020, opening 178 new positions and adding to 749 existing holdings. Its largest new stake was Seagen Inc. Common Stock: 91,539 shares worth $16M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Healthcare and Financials.

On the sell side, the largest reduction was Slack Technologies, Inc., an estimated $24.2M trimmed.

  • William Blair & Company's largest Q4 2020 buy was Seagen Inc. Common Stock: 91,539 shares worth $16M.
  • William Blair & Company added most to Splunk Inc in Q4 2020, an estimated $77.8M increase.
  • William Blair & Company's biggest Q4 2020 reduction was Slack Technologies, Inc., cutting an estimated $24.2M.
  • William Blair & Company fully exited Dunkin' Brands Group, Inc. in Q4 2020, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 25% of its $27.3B portfolio in Q4 2020.
  • William Blair & Company opened 178 new positions and closed 72 in Q4 2020.
  • William Blair & Company's portfolio value rose 16% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q4 2020, filed 9 Feb 2021.