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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
+8.67%
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
$23B
AUM Growth
+$1.22B
Cap. Flow
-$156M
Cap. Flow %
-0.68%
Top 10 Hldgs %
22.7%
Holding
1,905
New
81
Increased
568
Reduced
855
Closed
91

Top Buys

Rank Stock Value
1
POOL icon
Pool Corp
POOL
+$43.2M
2
TEAM icon
Atlassian
TEAM
+$36.6M
3
NOVT icon
Novanta
NOVT
+$28.8M
4
PANW icon
Palo Alto Networks
PANW
+$23.2M
5
MSI icon
Motorola Solutions
MSI
+$20.1M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$103M
2
PYPL icon
PayPal
PYPL
+$28.4M
3
DIS icon
Walt Disney
DIS
+$26.7M
4
KMX icon
CarMax
KMX
+$25.2M
5
CRM icon
Salesforce
CRM
+$24.3M

Sector Composition

Rank Sector Weight
1 Technology 22.31%
2 Healthcare 19.82%
3 Financials 12.49%
4 Industrials 11.58%
5 Consumer Discretionary 8.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SPOK icon
1201
Spok Holdings
SPOK
$229M
$314K ﹤0.01%
38,378
-1,500
-4% -$12.2K
DAR icon
1202
Darling Ingredients
DAR
$10.2B
$314K ﹤0.01%
5,019
-1,175
-19% -$82.9K
IYK icon
1203
iShares US Consumer Staples ETF
IYK
$1.43B
$313K ﹤0.01%
4,632
– –
RWT
1204
Redwood Trust
RWT
$600M
$312K ﹤0.01%
46,208
+39
+0.1% +$272
QDEF icon
1205
FlexShares Quality Dividend Defensive Index Fund
QDEF
$563M
$312K ﹤0.01%
6,061
– –
VKTX icon
1206
Viking Therapeutics
VKTX
$3.85B
$312K ﹤0.01%
33,157
-80,631
-71% -$360K
BBCA icon
1207
JPMorgan BetaBuilders Canada ETF
BBCA
$11.4B
$312K ﹤0.01%
5,440
+240
+5% +$13.8K
DKNG icon
1208
DraftKings
DKNG
$12.6B
$312K ﹤0.01%
27,349
-4,948
-15% -$68.9K
SMMD icon
1209
iShares Russell 2500 ETF
SMMD
$3.76B
$311K ﹤0.01%
5,855
-3,985
-40% -$214K
AUGX
1210
DELISTED
Augmedix, Inc. Common Stock
AUGX
$310K ﹤0.01%
199,038
-6,525
-3% -$8.31K
AQUA
1211
DELISTED
Evoqua Water Technologies Corp. Common Stock
AQUA
$310K ﹤0.01%
7,825
-1,000
-11% -$39.3K
USD icon
1212
ProShares Ultra Semiconductors
USD
$3.04B
$310K ﹤0.01%
74,800
– –
ALC icon
1213
Alcon
ALC
$35.4B
$309K ﹤0.01%
4,512
-1,339
-23% -$85.4K
VTRS icon
1214
Viatris
VTRS
$18.6B
$309K ﹤0.01%
27,760
-7,128
-20% -$74.5K
FNDX icon
1215
Schwab Fundamental US Large Company Index ETF
FNDX
$27.6B
$309K ﹤0.01%
17,322
+381
+2% +$6.74K
LBRDK icon
1216
Liberty Broadband Class C
LBRDK
$5.24B
$307K ﹤0.01%
4,028
+500
+14% +$40.7K
SWKS icon
1217
Skyworks Solutions
SWKS
$10.6B
$306K ﹤0.01%
3,359
-731
-18% -$65.5K
HIBS icon
1218
Direxion Daily S&P 500 High Beta Bear 3X ETF
HIBS
$17.3M
$305K ﹤0.01%
+400
New +$328K
VPU
1219
Vanguard Utilities ETF
VPU
$8.51B
$305K ﹤0.01%
1,989
+15
+0.8% +$2.22K
XLG icon
1220
Invesco S&P 500 Top 50 ETF
XLG
$11B
$305K ﹤0.01%
11,050
+2,680
+32% +$75.6K
LSXMK
1221
DELISTED
Liberty Media Corporation Series C Liberty SiriusXM Common Stock
LSXMK
$305K ﹤0.01%
10,047
– –
BYND icon
1222
Beyond Meat
BYND
$218M
$304K ﹤0.01%
24,703
-1,367
-5% -$19K
OLED icon
1223
Universal Display
OLED
$4.18B
$304K ﹤0.01%
2,810
-331
-11% -$34.7K
MGC icon
1224
Vanguard Morningstar Mega Cap ETF
MGC
$10.4B
$302K ﹤0.01%
2,282
-140
-6% -$18.7K
BELFB
1225
Bel Fuse Inc Class B
BELFB
$4.21B
$301K ﹤0.01%
9,150
– –
47 48
49
50 51

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William Blair & Company's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair & Company held 1,905 positions worth $23B, up 5.6% from $21.8B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q4 2022 filing shows 81 new, 568 increased, 855 reduced and 91 closed positions. Its largest new stake was Atlassian: 230,078 shares worth $29.6M. The largest sale was Abiomed Inc, an estimated $103M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2022 buy was Atlassian: 230,078 shares worth $29.6M.
  • William Blair & Company added most to Pool Corp in Q4 2022, an estimated $43.2M increase.
  • William Blair & Company's biggest Q4 2022 reduction was PayPal, cutting an estimated $28.4M.
  • William Blair & Company fully exited Abiomed Inc in Q4 2022, selling an estimated $103M.
  • William Blair & Company's ten largest holdings make up 23% of its $23B portfolio in Q4 2022.
  • William Blair & Company opened 81 new positions and closed 91 in Q4 2022.
  • William Blair & Company's portfolio value rose 5.6% quarter-over-quarter to $23B.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.