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 | |
|---|---|---|---|---|---|---|
3201
Smart Sand
SND
$199M
| $963K | ﹤0.01% |
+188,156
| New | +$848K |
|
3202
Avalo Therapeutics
AVTX
$1.06B
| $962K | ﹤0.01% |
64,425
-83,812
| -57% | -$1.31M |
|
3203
CALL
Molina Healthcare
MOH
$10.4B
| $960K | ﹤0.01% |
+7,200
| New | +$1.15M |
|
|
ONL
3204
Orion Office REIT
ONL
$168M
| $959K | ﹤0.01% |
445,924
+60,008
| +16% | +$139K |
|
3205
First Trust Small Cap Value AlphaDEX Fund
FYT
$198M
| $956K | ﹤0.01% |
+15,475
| New | +$953K |
|
3206
First Trust Consumer Staples AlphaDEX Fund
FXG
$236M
| $956K | ﹤0.01% |
15,000
-1,501
| -9% | -$97.7K |
|
3207
Tiptree Inc
TIPT
$685M
| $952K | ﹤0.01% |
56,287
+6,416
| +13% | +$110K |
|
|
ELVA
3208
Electrovaya
ELVA
$330M
| $952K | ﹤0.01% |
121,772
+73,628
| +153% | +$637K |
|
|
HTB
3209
HomeTrust Bancshares
HTB
$771M
| $952K | ﹤0.01% |
22,313
+4,477
| +25% | +$193K |
|
3210
PUT
Performance Food Group
PFGC
$16.5B
| $951K | ﹤0.01% |
+11,100
| New | +$1.02M |
|
|
ORKA
3211
Oruka Therapeutics
ORKA
$6.74B
| $950K | ﹤0.01% |
19,364
-9,202
| -32% | -$320K |
|
3212
PUT
SolarEdge
SEDG
$1.84B
| $950K | ﹤0.01% |
+18,600
| New | +$700K |
|
3213
CALL
Atlassian
TEAM
$42.1B
| $949K | ﹤0.01% |
+13,900
| New | +$1.37M |
|
3214
ING
ING
$101B
| $947K | ﹤0.01% |
+36,370
| New | +$1.02M |
|
3215
PUT
Apollo Global Management
APO
$78.6B
| $947K | ﹤0.01% |
8,500
-2,100
| -20% | -$260K |
|
|
STLN
3216
Starling Oncology
STLN
$642M
| $945K | ﹤0.01% |
307,754
+45,704
| +17% | +$140K |
|
3217
CALL
Datadog
DDOG
$80.1B
| $944K | ﹤0.01% |
8,000
+4,000
| +100% | +$494K |
|
|
WHWK
3218
Whitehawk Therapeutics
WHWK
$290M
| $944K | ﹤0.01% |
273,482
-36,383
| -12% | -$114K |
|
3219
CALL
Republic Services
RSG
$67.7B
| $942K | ﹤0.01% |
+4,300
| New | +$943K |
|
3220
Capricor Therapeutics
CAPR
$482M
| $940K | ﹤0.01% |
30,932
-23,841
| -44% | -$635K |
|
3221
Mid-America Apartment Communities
MAA
$15.3B
| $940K | ﹤0.01% |
+7,700
| New | +$1.02M |
|
|
DFDV
3222
DeFi Development Corp
DFDV
$142M
| $940K | ﹤0.01% |
285,800
| – | – |
|
3223
Pinnacle Financial Partners Inc
PNFP
$15.2B
| $938K | ﹤0.01% |
10,895
-111,661
| -91% | -$10.4M |
|
3224
AES
AES
$10.5B
| $936K | ﹤0.01% |
66,411
-292,289
| -81% | -$4.35M |
|
|
AMBQ
3225
Ambiq Micro
AMBQ
$1.45B
| $935K | ﹤0.01% |
+36,794
| New | +$1.1M |
|
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.