John Overdeck Two Sigma Investments
John Overdeck is a co-founder of Two Sigma Investments, one of the world’s leading quantitative and technology-driven investment firms. Two Sigma applies data science, machine learning, and large-scale computing to markets across asset classes. Overdeck’s firm is a central reference point in discussions of modern systematic investing.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$510M |
| 2 |
Broadcom
AVGO
|
+$318M |
| 3 |
Marvell Technology
MRVL
|
+$290M |
| 4 |
Salesforce
CRM
|
+$263M |
| 5 |
Advanced Micro Devices
AMD
|
+$250M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Eli Lilly
LLY
|
+$255M |
| 2 |
Progressive
PGR
|
+$244M |
| 3 |
Visa
V
|
+$238M |
| 4 |
Lam Research
LRCX
|
+$201M |
| 5 |
Elevance Health
ELV
|
+$190M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 17.88% |
| 2 | Healthcare | 13.28% |
| 3 | Financials | 10.32% |
| 4 | Industrials | 9.79% |
| 5 | Consumer Discretionary | 8.58% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2351
Astec Industries
ASTE
$1.01B
| $625K | ﹤0.01% |
18,145
-13,688
| -43% | -$471K |
|
2352
Lantronix
LTRX
$261M
| $625K | ﹤0.01% |
250,968
-46,227
| -16% | -$149K |
|
2353
Nutanix
NTNX
$18B
| $625K | ﹤0.01% |
8,946
-82,009
| -90% | -$5.67M |
|
2354
Definitive Healthcare
DH
$80.5M
| $624K | ﹤0.01% |
215,977
-69,578
| -24% | -$282K |
|
2355
T. Rowe Price Growth Stock ETF
TGRW
$1B
| $619K | ﹤0.01% |
17,300
+6,290
| +57% | +$247K |
|
2356
Townsquare Media
TSQ
$107M
| $619K | ﹤0.01% |
76,004
+13,145
| +21% | +$114K |
|
|
CSF
2357
DELISTED
VictoryShares US Discovery Enhanced Volatility Wtd ETF
CSF
| $619K | ﹤0.01% |
+12,000
| New | +$653K |
|
2358
Verastem
VSTM
$641M
| $618K | ﹤0.01% |
102,544
+21,086
| +26% | +$129K |
|
2359
Fresenius Medical Care
FMS
$12.5B
| $618K | ﹤0.01% |
24,813
-60,586
| -71% | -$1.44M |
|
2360
RLI Corp
RLI
$5.96B
| $617K | ﹤0.01% |
7,675
-561
| -7% | -$42.7K |
|
2361
Worthington Steel
WS
$1.73B
| $616K | ﹤0.01% |
24,334
-39,676
| -62% | -$1.12M |
|
2362
iShares Morningstar Growth ETF
ILCG
$3.17B
| $616K | ﹤0.01% |
7,600
-12,000
| -61% | -$1.06M |
|
|
TE
2363
T1 Energy
TE
$1.37B
| $615K | ﹤0.01% |
488,411
-43,788
| -8% | -$80.8K |
|
|
AUTL
2364
Autolus Therapeutics
AUTL
$649M
| $613K | ﹤0.01% |
395,443
-511,324
| -56% | -$1.04M |
|
2365
iHeartMedia
IHRT
$415M
| $612K | ﹤0.01% |
370,907
-290,792
| -44% | -$585K |
|
2366
Star Group
SGU
$412M
| $611K | ﹤0.01% |
46,361
-633
| -1% | -$7.92K |
|
2367
Magnite
MGNI
$3.43B
| $611K | ﹤0.01% |
53,552
-44,450
| -45% | -$709K |
|
2368
Phathom Pharmaceuticals
PHAT
$712M
| $610K | ﹤0.01% |
97,327
-388,463
| -80% | -$2.36M |
|
2369
EOG Resources
EOG
$77B
| $609K | ﹤0.01% |
4,750
-201,041
| -98% | -$25.9M |
|
2370
Ranger Energy Services
RNGR
$375M
| $608K | ﹤0.01% |
42,864
-34,192
| -44% | -$554K |
|
2371
Immunome
IMNM
$3.34B
| $604K | ﹤0.01% |
89,724
-64,743
| -42% | -$621K |
|
2372
POSCO
PKX
$18B
| $603K | ﹤0.01% |
12,696
-11,792
| -48% | -$551K |
|
2373
Tyra Biosciences
TYRA
$1.59B
| $603K | ﹤0.01% |
64,818
+18,549
| +40% | +$240K |
|
2374
Palmer Square Capital BDC
PSBD
$317M
| $599K | ﹤0.01% |
44,974
+5,770
| +15% | +$88.2K |
|
2375
Gran Tierra Energy
GTE
$340M
| $599K | ﹤0.01% |
121,411
-211,569
| -64% | -$1.21M |
|
Similar funds
John Overdeck's Q1 2025 Portfolio in Review
As of Q1 2025, John Overdeck held 3,617 positions worth $46.8B, up 2% from $45.9B the previous quarter. Its ten largest holdings account for 8.1% of the portfolio.
John Overdeck deployed $2.08B of net new capital in Q1 2025, opening 458 new positions and adding to 1,225 existing holdings. Its largest new stake was Advanced Micro Devices: 2,246,952 shares worth $231M.
By sector, the portfolio is most concentrated in Technology at 18% of assets, up from 16% a quarter earlier, followed by Healthcare and Financials.
On the sell side, the largest reduction was Eli Lilly, an estimated $255M trimmed.
- John Overdeck's largest Q1 2025 buy was Advanced Micro Devices: 2,246,952 shares worth $231M.
- John Overdeck added most to State Street SPDR S&P 500 ETF Trust in Q1 2025, an estimated $510M increase.
- John Overdeck's biggest Q1 2025 reduction was Eli Lilly, cutting an estimated $255M.
- John Overdeck fully exited Coinbase in Q1 2025, selling an estimated $45M.
- John Overdeck's ten largest holdings make up 8.1% of its $46.8B portfolio in Q1 2025.
- John Overdeck opened 458 new positions and closed 452 in Q1 2025.
- John Overdeck's portfolio value rose 2% quarter-over-quarter to $46.8B.
Based on Two Sigma Investments's 13F filing for Q1 2025, filed 15 May 2025.