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 |
NVIDIA
NVDA
|
+$1.84B |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$1.38B |
| 3 |
Apple
AAPL
|
+$1.31B |
| 4 |
Amazon
AMZN
|
+$1.14B |
| 5 |
Tesla
TSLA
|
+$966M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amgen
AMGN
|
+$224M |
| 2 |
VanEck Semiconductor ETF
SMH
|
+$216M |
| 3 |
Procter & Gamble
PG
|
+$215M |
| 4 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$212M |
| 5 |
Eaton
ETN
|
+$197M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 18.76% |
| 2 | Financials | 13.52% |
| 3 | Healthcare | 11.32% |
| 4 | Industrials | 11.3% |
| 5 | Consumer Discretionary | 10.01% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2426
Ameris Bancorp
ABCB
$5.76B
| $2.75M | ﹤0.01% |
35,210
+2,000
| +6% | +$159K |
|
2427
State Street SPDR S&P Pharmaceuticals ETF
XPH
$564M
| $2.74M | ﹤0.01% |
50,700
+37,700
| +290% | +$2.1M |
|
|
ACH
2428
Accendra Health
ACH
$93.8M
| $2.74M | ﹤0.01% |
1,201,269
+19,601
| +2% | +$45.1K |
|
2429
PUT
D-Wave Quantum Inc
QBTS
$6.52B
| $2.74M | ﹤0.01% |
189,800
+74,000
| +64% | +$1.57M |
|
2430
Interparfums
IPAR
$3.74B
| $2.74M | ﹤0.01% |
30,141
-32,727
| -52% | -$3.1M |
|
2431
The Ensign Group
ENSG
$10.5B
| $2.73M | ﹤0.01% |
13,534
+4,100
| +43% | +$802K |
|
2432
GSI Technology
GSIT
$224M
| $2.73M | ﹤0.01% |
530,204
+29,840
| +6% | +$217K |
|
|
SUMAU
2433
SUMA Acquisition Corp Units
SUMAU
| $2.72M | ﹤0.01% |
+271,875
| New | +$2.72M |
|
2434
First Financial Bancorp
FFBC
$3.44B
| $2.72M | ﹤0.01% |
97,694
-54,831
| -36% | -$1.53M |
|
2435
DXP Enterprises
DXPE
$2.96B
| $2.72M | ﹤0.01% |
+19,490
| New | +$2.61M |
|
2436
Lithia Motors
LAD
$8.14B
| $2.72M | ﹤0.01% |
10,900
-28,504
| -72% | -$8.47M |
|
|
CRAC
2437
Crown Reserve Acquisition Corp I
CRAC
$228M
| $2.72M | ﹤0.01% |
271,875
| – | – |
|
|
KPET.U
2438
KPET Ultra Paceline Corp Units
KPET.U
| $2.72M | ﹤0.01% |
+271,875
| New | +$2.72M |
|
2439
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$15B
| $2.71M | ﹤0.01% |
+28,900
| New | +$2.78M |
|
2440
CALL
Dominion Energy
D
$58.8B
| $2.71M | ﹤0.01% |
43,900
+39,600
| +921% | +$2.45M |
|
|
PALOU
2441
Paloma Acquisition Corp I Units
PALOU
| $2.71M | ﹤0.01% |
+271,875
| New | +$2.71M |
|
|
SCII
2442
SC II Acquisition Corp
SCII
$252M
| $2.71M | ﹤0.01% |
+271,875
| New | +$2.71M |
|
2443
PUT
Abbott
ABT
$197B
| $2.71M | ﹤0.01% |
+26,400
| New | +$2.98M |
|
2444
Viatris
VTRS
$19.4B
| $2.71M | ﹤0.01% |
+200,600
| New | +$2.81M |
|
|
DYOR
2445
Insight Digital Partners II
DYOR
$233M
| $2.71M | ﹤0.01% |
271,875
| – | – |
|
2446
Amphastar Pharmaceuticals
AMPH
$937M
| $2.71M | ﹤0.01% |
138,148
+39,470
| +40% | +$966K |
|
2447
Capital Bancorp
CBNK
$593M
| $2.7M | ﹤0.01% |
90,879
+26,597
| +41% | +$796K |
|
2448
PUT
Grab
GRAB
$14.9B
| $2.7M | ﹤0.01% |
737,300
| – | – |
|
|
TDWD
2449
Tailwind 2.0 Acquisition Corp
TDWD
$238M
| $2.7M | ﹤0.01% |
271,875
| – | – |
|
|
ARCI
2450
Archimedes Tech SPAC Partners III
ARCI
| $2.7M | ﹤0.01% |
+273,791
| New | +$2.7M |
|
Similar funds
John Overdeck's Q1 2026 Portfolio in Review
As of Q1 2026, John Overdeck held 5,070 positions worth $124B, up 75% from $70.9B the previous quarter. Its ten largest holdings account for 9.4% of the portfolio.
John Overdeck deployed $54.2B of net new capital in Q1 2026, opening 1,038 new positions and adding to 2,050 existing holdings. Its largest new stake was Broadcom: 2,225,253 shares worth $689M.
By sector, the portfolio is most concentrated in Technology at 19% of assets, up from 16% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was Amgen, an estimated $224M trimmed.
- John Overdeck's largest Q1 2026 buy was Broadcom: 2,225,253 shares worth $689M.
- John Overdeck added most to NVIDIA in Q1 2026, an estimated $1.84B increase.
- John Overdeck's biggest Q1 2026 reduction was Amgen, cutting an estimated $224M.
- John Overdeck fully exited First Trust Dow Jones Internet Index Fund ETF in Q1 2026, selling an estimated $82.2M.
- John Overdeck's ten largest holdings make up 9.4% of its $124B portfolio in Q1 2026.
- John Overdeck opened 1,038 new positions and closed 524 in Q1 2026.
- John Overdeck's portfolio value rose 75% quarter-over-quarter to $124B.
Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.