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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
+3.1%
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
$34.4B
AUM Growth
+$328M
(+0.96%)
Cap. Flow
-$18.6M
Cap. Flow
% of AUM
-0.05%
Top 10 Holdings %
Top 10 Hldgs %
25.12%
Holding
1,903
New
83
Increased
650
Reduced
792
Closed
87
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
XYZ
Block Inc
XYZ
|
+$80.6M |
| 2 |
Blackrock
BLK
|
+$53.4M |
| 3 |
CWAN
Clearwater Analytics
CWAN
|
+$48.5M |
| 4 |
NVIDIA
NVDA
|
+$47.9M |
| 5 |
BWX Technologies
BWXT
|
+$47M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
DexCom
DXCM
|
+$37.7M |
| 2 |
CoStar Group
CSGP
|
+$34.5M |
| 3 |
Vertex Pharmaceuticals
VRTX
|
+$30M |
| 4 |
Booz Allen Hamilton
BAH
|
+$29.1M |
| 5 |
Idexx Laboratories
IDXX
|
+$26.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 28.35% |
| 2 | Financials | 13.43% |
| 3 | Healthcare | 12.44% |
| 4 | Industrials | 11.81% |
| 5 | Consumer Discretionary | 8.44% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1076
iShares US Consumer Discretionary ETF
IYC
$1.22B
| $537K | ﹤0.01% |
5,584
+140
| +3% | +$13.1K |
|
1077
Invesco DB Commodity Index Tracking Fund
DBC
$1.71B
| $537K | ﹤0.01% |
25,108
+11,294
| +82% | +$252K |
|
|
JNPR
1078
DELISTED
Juniper Networks
JNPR
| $535K | ﹤0.01% |
14,297
+22
| +0.2% | +$832 |
|
1079
Rivian
RIVN
$22.9B
| $535K | ﹤0.01% |
40,237
+1,843
| +5% | +$21.2K |
|
1080
W.R. Berkley
WRB
$26.2B
| $532K | ﹤0.01% |
9,090
-402
| -4% | -$24.1K |
|
1081
Hims & Hers Health
HIMS
$6.71B
| $531K | ﹤0.01% |
21,971
-529
| -2% | -$13.1K |
|
1082
Cloudflare
NET
$118B
| $528K | ﹤0.01% |
4,899
-27,562
| -85% | -$2.69M |
|
1083
ProShares Ultra Financials
UYG
$863M
| $525K | ﹤0.01% |
6,140
-5
| -0.1% | -$431 |
|
1084
Flex
FLEX
$45.9B
| $521K | ﹤0.01% |
13,568
+589
| +5% | +$21.8K |
|
1085
Sensata Technologies
ST
$6.61B
| $520K | ﹤0.01% |
18,969
-663
| -3% | -$21.5K |
|
1086
Woodward
WWD
$21.2B
| $508K | ﹤0.01% |
3,053
+100
| +3% | +$17.1K |
|
1087
Euronet Worldwide
EEFT
$2.78B
| $505K | ﹤0.01% |
4,907
+500
| +11% | +$50.9K |
|
1088
Horizon Bancorp
HBNC
$1.05B
| $503K | ﹤0.01% |
31,200
| – | – |
|
1089
PTC
PTC
$16.7B
| $501K | ﹤0.01% |
2,727
+159
| +6% | +$30.1K |
|
|
XIFR
1090
XPLR Infrastructure LP
XIFR
$1.09B
| $500K | ﹤0.01% |
28,073
+12,560
| +81% | +$251K |
|
|
GAP
1091
The Gap Inc
GAP
$7.34B
| $499K | ﹤0.01% |
21,105
+5,274
| +33% | +$120K |
|
1092
Arch Capital
ACGL
$33.5B
| $498K | ﹤0.01% |
5,390
-20
| -0.4% | -$2.02K |
|
1093
Textron
TXT
$15.1B
| $497K | ﹤0.01% |
6,494
-135
| -2% | -$11.3K |
|
1094
Vanguard Morningstar Mega Cap ETF
MGC
$10.4B
| $495K | ﹤0.01% |
2,330
+82
| +4% | +$17.4K |
|
1095
BlackRock ESG Capital Allocation Term Trust
ECAT
$1.57B
| $493K | ﹤0.01% |
30,068
+1,665
| +6% | +$28.9K |
|
1096
Invesco S&P 500 Pure Growth ETF
RPG
$2.09B
| $492K | ﹤0.01% |
11,918
+2,673
| +29% | +$111K |
|
1097
Sony
SONY
$138B
| $492K | ﹤0.01% |
23,237
-1,068
| -4% | -$20.8K |
|
1098
Korro Bio
KRRO
$196M
| $491K | ﹤0.01% |
12,895
+695
| +6% | +$35.7K |
|
1099
Appian
APPN
$2.65B
| $491K | ﹤0.01% |
14,881
-210
| -1% | -$7.51K |
|
1100
Mohawk Industries
MHK
$9.42B
| $488K | ﹤0.01% |
4,095
-121
| -3% | -$16.9K |
|
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HF
William Blair & Company's Q4 2024 Portfolio in Review
As of Q4 2024, William Blair & Company held 1,903 positions worth $34.4B, up 0.96% from $34.1B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
William Blair & Company's Q4 2024 filing shows 83 new, 650 increased, 792 reduced and 87 closed positions. Its largest new stake was Blackrock: 52,623 shares worth $53.9M. The largest sale was DexCom, an estimated $37.7M.
By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Financials and Healthcare.
- William Blair & Company's largest Q4 2024 buy was Blackrock: 52,623 shares worth $53.9M.
- William Blair & Company added most to Block Inc in Q4 2024, an estimated $80.6M increase.
- William Blair & Company's biggest Q4 2024 reduction was DexCom, cutting an estimated $37.7M.
- William Blair & Company fully exited Rush Street Interactive in Q4 2024, selling an estimated $5.79M.
- William Blair & Company's ten largest holdings make up 25% of its $34.4B portfolio in Q4 2024.
- William Blair & Company opened 83 new positions and closed 87 in Q4 2024.
- William Blair & Company's portfolio value rose 0.96% quarter-over-quarter to $34.4B.
Based on William Blair & Company's 13F filing for Q4 2024, filed 12 Feb 2025.