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William Blair & Company Portfolio holdings
AUM
$38.4B
1-Year Est. Return
25.71%
This Fund
S&P 500
This Quarter
Est. Return
+1.99%
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
$29.4B
AUM Growth
+$519M
(+1.8%)
Cap. Flow
+$281M
Cap. Flow
% of AUM
0.96%
Top 10 Holdings %
Top 10 Hldgs %
23.58%
Holding
1,987
New
99
Increased
752
Reduced
666
Closed
108
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Airbnb
ABNB
|
+$45.2M |
| 2 |
Chewy
CHWY
|
+$31.5M |
| 3 |
Unity
U
|
+$23.3M |
| 4 |
Ryan Specialty Holdings
RYAN
|
+$22.4M |
| 5 |
Amazon
AMZN
|
+$21.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Idexx Laboratories
IDXX
|
+$37.7M |
| 2 |
General Dynamics
GD
|
+$33.5M |
| 3 |
Ecolab
ECL
|
+$31.7M |
| 4 |
Johnson & Johnson
JNJ
|
+$20.9M |
| 5 |
Uber
UBER
|
+$19.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 26.19% |
| 2 | Healthcare | 19.81% |
| 3 | Financials | 11.61% |
| 4 | Consumer Discretionary | 10.68% |
| 5 | Industrials | 9.37% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1226
Emcor
EME
$37B
| $408K | ﹤0.01% |
3,532
+299
| +9% | +$35.8K |
|
1227
M&T Bank
MTB
$36.7B
| $408K | ﹤0.01% |
2,732
+11
| +0.4% | +$1.52K |
|
1228
Lamar Advertising Co
LAMR
$15.8B
| $407K | ﹤0.01% |
3,585
+10
| +0.3% | +$1.09K |
|
1229
Vanguard Intermediate-Term Treasury ETF
VGIT
$42.5B
| $405K | ﹤0.01% |
6,002
-182
| -3% | -$12.4K |
|
1230
HSBC
HSBC
$358B
| $403K | ﹤0.01% |
15,416
+3,049
| +25% | +$83K |
|
1231
McKesson
MCK
$100B
| $403K | ﹤0.01% |
2,023
+41
| +2% | +$8.2K |
|
1232
BorgWarner
BWA
$13.9B
| $402K | ﹤0.01% |
10,558
-611
| -5% | -$24.3K |
|
1233
iShares US Telecommunications ETF
IYZ
$1.24B
| $402K | ﹤0.01% |
12,398
| – | – |
|
1234
Talkspace
TALK
$871M
| $401K | ﹤0.01% |
+109,737
| New | +$603K |
|
|
BRKL
1235
DELISTED
Brookline Bancorp
BRKL
| $400K | ﹤0.01% |
26,210
| – | – |
|
|
COHR
1236
DELISTED
Coherent Inc
COHR
| $400K | ﹤0.01% |
1,600
-100
| -6% | -$25.1K |
|
1237
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$15B
| $399K | ﹤0.01% |
3,626
-401
| -10% | -$45K |
|
1238
Norwegian Cruise Line
NCLH
$8.9B
| $399K | ﹤0.01% |
14,942
+5,319
| +55% | +$135K |
|
1239
Byline Bancorp
BY
$1.78B
| $398K | ﹤0.01% |
16,200
-7,826
| -33% | -$187K |
|
|
LSXMK
1240
DELISTED
Liberty Media Corporation Series C Liberty SiriusXM Common Stock
LSXMK
| $398K | ﹤0.01% |
10,828
+5,079
| +88% | +$186K |
|
1241
Primerica
PRI
$9.63B
| $396K | ﹤0.01% |
2,579
-826
| -24% | -$123K |
|
|
GTLS
1242
DELISTED
Chart Industries
GTLS
| $395K | ﹤0.01% |
+2,069
| New | +$356K |
|
1243
Occidental Petroleum
OXY
$57.7B
| $394K | ﹤0.01% |
13,321
+2,219
| +20% | +$59.2K |
|
|
AGEN
1244
Agenus
AGEN
$311M
| $393K | ﹤0.01% |
3,810
-604
| -14% | -$68.2K |
|
1245
Centene
CNC
$32.7B
| $392K | ﹤0.01% |
6,296
+136
| +2% | +$9.09K |
|
1246
Spire
SR
$4.89B
| $392K | ﹤0.01% |
6,410
+675
| +12% | +$46.2K |
|
1247
Synchrony
SYF
$26.1B
| $389K | ﹤0.01% |
7,954
-262
| -3% | -$12.7K |
|
1248
Liberty Global Class C
LBTYK
$3.47B
| $387K | ﹤0.01% |
13,146
+4
| +0% | +$111 |
|
1249
Open Text
OTEX
$5.93B
| $387K | ﹤0.01% |
7,945
| – | – |
|
1250
Pinnacle West Capital
PNW
$12.2B
| $387K | ﹤0.01% |
5,347
-150
| -3% | -$11.9K |
|
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William Blair & Company's Q3 2021 Portfolio in Review
As of Q3 2021, William Blair & Company held 1,987 positions worth $29.4B, up 1.8% from $28.9B the previous quarter. Its ten largest holdings account for 24% of the portfolio.
William Blair & Company's Q3 2021 filing shows 99 new, 752 increased, 666 reduced and 108 closed positions. Its largest new stake was Ryan Specialty Holdings: 709,555 shares worth $24M. The largest sale was Idexx Laboratories, an estimated $37.7M.
By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.
- William Blair & Company's largest Q3 2021 buy was Ryan Specialty Holdings: 709,555 shares worth $24M.
- William Blair & Company added most to Airbnb in Q3 2021, an estimated $45.2M increase.
- William Blair & Company's biggest Q3 2021 reduction was Idexx Laboratories, cutting an estimated $37.7M.
- William Blair & Company fully exited Slack Technologies, Inc. in Q3 2021, selling an estimated $13.8M.
- William Blair & Company's ten largest holdings make up 24% of its $29.4B portfolio in Q3 2021.
- William Blair & Company opened 99 new positions and closed 108 in Q3 2021.
- William Blair & Company's portfolio value rose 1.8% quarter-over-quarter to $29.4B.
Based on William Blair & Company's 13F filing for Q3 2021, filed 12 Nov 2021.