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 | |
|---|---|---|---|---|---|---|
2651
Cosan
CSAN
$2.78B
| $2.07M | ﹤0.01% |
+502,054
| New | +$2.19M |
|
2652
Lyft
LYFT
$6.57B
| $2.06M | ﹤0.01% |
155,113
-3,517,618
| -96% | -$54.5M |
|
2653
ACM Research
ACMR
$5.49B
| $2.06M | ﹤0.01% |
+52,416
| New | +$2.78M |
|
2654
Kayne Anderson Energy Infrastructure Fund
KYN
$2.5B
| $2.06M | ﹤0.01% |
144,300
| – | – |
|
2655
Albertsons Companies
ACI
$6.01B
| $2.06M | ﹤0.01% |
120,859
| – | – |
|
2656
Donnelley Financial Solutions
DFIN
$1.16B
| $2.06M | ﹤0.01% |
43,594
-13,136
| -23% | -$644K |
|
2657
West Bancorporation
WTBA
$485M
| $2.05M | ﹤0.01% |
85,979
+36,553
| +74% | +$873K |
|
2658
Cogent Biosciences
COGT
$6.39B
| $2.04M | ﹤0.01% |
53,090
+40,490
| +321% | +$1.5M |
|
2659
PUT
Cameco
CCJ
$47B
| $2.04M | ﹤0.01% |
18,800
+15,800
| +527% | +$1.81M |
|
|
AXON
2660
PUT
Axon Enterprise
AXON
$48.6B
| $2.04M | ﹤0.01% |
4,800
-42,400
| -90% | -$22M |
|
2661
Diana Shipping
DSX
$335M
| $2.03M | ﹤0.01% |
813,822
+541,925
| +199% | +$1.24M |
|
2662
Shattuck Labs
STTK
$797M
| $2.03M | ﹤0.01% |
316,012
-121,717
| -28% | -$577K |
|
|
FBLA
2663
FB Bancorp
FBLA
$230M
| $2.03M | ﹤0.01% |
147,808
+65,607
| +80% | +$866K |
|
2664
CALL
Duolingo
DUOL
$6.57B
| $2.03M | ﹤0.01% |
20,600
-8,100
| -28% | -$999K |
|
2665
Global X Adaptive US Factor ETF
AUSF
$922M
| $2.03M | ﹤0.01% |
41,900
-35,100
| -46% | -$1.71M |
|
|
VIA
2666
Via Transportation Inc
VIA
$2.22B
| $2.02M | ﹤0.01% |
+134,735
| New | +$2.69M |
|
2667
Atomera
ATOM
$173M
| $2.02M | ﹤0.01% |
530,000
+348,672
| +192% | +$1.31M |
|
2668
Civista Bancshares
CIVB
$568M
| $2.02M | ﹤0.01% |
88,510
-6,834
| -7% | -$158K |
|
2669
CALL
Kinder Morgan
KMI
$71.3B
| $2.01M | ﹤0.01% |
60,000
+36,100
| +151% | +$1.13M |
|
|
PR
2670
Permian Resources
PR
$19.2B
| $2.01M | ﹤0.01% |
94,332
-656,338
| -87% | -$11.3M |
|
2671
News Corp Class A
NWSA
$16.6B
| $2M | ﹤0.01% |
80,400
+70,668
| +726% | +$1.75M |
|
2672
Integra LifeSciences
IART
$1.3B
| $2M | ﹤0.01% |
212,710
-140,554
| -40% | -$1.54M |
|
2673
Accel Entertainment
ACEL
$968M
| $2M | ﹤0.01% |
183,410
+166,345
| +975% | +$1.88M |
|
|
2674
PUT
Duolingo
DUOL
$6.57B
| $2M | ﹤0.01% |
20,300
-14,500
| -42% | -$1.79M |
|
2675
Kadant
KAI
$3.62B
| $2M | ﹤0.01% |
6,837
+480
| +8% | +$154K |
|
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.