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 Financial Select Sector SPDR ETF
XLF
|
+$474M |
| 2 |
State Street Consumer Staples Select Sector SPDR ETF
XLP
|
+$357M |
| 3 |
Accenture
ACN
|
+$246M |
| 4 |
Advanced Micro Devices
AMD
|
+$235M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$231M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$381M |
| 2 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$375M |
| 3 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$348M |
| 4 |
Thermo Fisher Scientific
TMO
|
+$292M |
| 5 |
Snowflake
SNOW
|
+$258M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.18% |
| 2 | Financials | 15.54% |
| 3 | Industrials | 10.5% |
| 4 | Healthcare | 9.8% |
| 5 | Consumer Discretionary | 8.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
76
Cintas
CTAS
$81.6B
| $209M | 0.31% |
1,016,671
+998,963
| +5,641% | +$213M |
|
77
Comcast
CMCSA
$95.3B
| $206M | 0.31% |
6,556,098
+6,105,867
| +1,356% | +$205M |
|
78
Stryker
SYK
$126B
| $205M | 0.31% |
554,353
+73,810
| +15% | +$28.5M |
|
79
Lam Research
LRCX
$393B
| $204M | 0.3% |
1,527,072
+1,223,184
| +403% | +$130M |
|
80
Vanguard Morningstar Total Stock Market ETF
VTI
$685B
| $204M | 0.3% |
620,264
+121,819
| +24% | +$38.5M |
|
81
American Electric Power
AEP
$65.8B
| $199M | 0.3% |
1,771,231
+665,720
| +60% | +$72.8M |
|
82
Morgan Stanley
MS
$336B
| $196M | 0.29% |
1,234,969
+741,651
| +150% | +$110M |
|
83
Visa
V
$693B
| $196M | 0.29% |
575,034
+3,541
| +0.6% | +$1.23M |
|
84
Moderna
MRNA
$57.9B
| $194M | 0.29% |
7,529,981
+570,773
| +8% | +$15.9M |
|
85
Mercado Libre
MELI
$97.5B
| $194M | 0.29% |
83,129
-2,403
| -3% | -$5.77M |
|
86
Credo Technology Group
CRDO
$43B
| $194M | 0.29% |
1,333,824
-199,541
| -13% | -$24.4M |
|
87
Arista Networks
ANET
$238B
| $194M | 0.29% |
1,331,525
-246,417
| -16% | -$31.7M |
|
88
Caterpillar
CAT
$381B
| $193M | 0.29% |
403,727
+259,526
| +180% | +$111M |
|
89
AerCap
AER
$23B
| $192M | 0.29% |
1,586,800
+528,315
| +50% | +$61.7M |
|
90
Cheniere Energy
LNG
$57.3B
| $192M | 0.29% |
816,028
+285,062
| +54% | +$67M |
|
91
Berkshire Hathaway Class B
BRK.B
$1.06T
| $191M | 0.28% |
+379,096
| New | +$184M |
|
92
L3Harris
LHX
$49.7B
| $188M | 0.28% |
614,287
+521,312
| +561% | +$142M |
|
93
ON Semiconductor
ON
$28.9B
| $185M | 0.28% |
3,749,751
+3,240,375
| +636% | +$171M |
|
94
Snap
SNAP
$8.86B
| $184M | 0.27% |
23,913,420
+9,420,545
| +65% | +$78.1M |
|
95
Intel
INTC
$476B
| $182M | 0.27% |
5,439,082
+483,339
| +10% | +$11.7M |
|
96
HEICO Corp
HEI
$49.6B
| $180M | 0.27% |
558,661
+3,166
| +0.6% | +$1.01M |
|
97
Marathon Petroleum
MPC
$101B
| $180M | 0.27% |
932,805
+775,578
| +493% | +$136M |
|
98
Celsius Holdings
CELH
$8.44B
| $177M | 0.26% |
3,076,031
+2,967,107
| +2,724% | +$155M |
|
99
Nasdaq
NDAQ
$54.9B
| $176M | 0.26% |
1,993,853
+209,245
| +12% | +$19.4M |
|
100
General Mills
GIS
$21.4B
| $172M | 0.26% |
3,415,818
+1,546,993
| +83% | +$77.6M |
|
Similar funds
John Overdeck's Q3 2025 Portfolio in Review
As of Q3 2025, John Overdeck held 4,027 positions worth $67.2B, up 19% from $56.5B the previous quarter. Its ten largest holdings account for 6.2% of the portfolio.
John Overdeck deployed $4.46B of net new capital in Q3 2025, opening 877 new positions and adding to 1,461 existing holdings. Its largest new stake was Berkshire Hathaway Class B: 379,096 shares worth $191M.
By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 17% a quarter earlier, followed by Financials and Industrials.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $381M trimmed.
- John Overdeck's largest Q3 2025 buy was Berkshire Hathaway Class B: 379,096 shares worth $191M.
- John Overdeck added most to State Street Financial Select Sector SPDR ETF in Q3 2025, an estimated $474M increase.
- John Overdeck's biggest Q3 2025 reduction was Invesco QQQ Trust, cutting an estimated $381M.
- John Overdeck fully exited NextEra Energy, Inc. 6.926% Corporate Units in Q3 2025, selling an estimated $115M.
- John Overdeck's ten largest holdings make up 6.2% of its $67.2B portfolio in Q3 2025.
- John Overdeck opened 877 new positions and closed 399 in Q3 2025.
- John Overdeck's portfolio value rose 19% quarter-over-quarter to $67.2B.
Based on Two Sigma Investments's 13F filing for Q3 2025, filed 14 Nov 2025.