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JO

John Overdeck Two Sigma Investments

AUM $138B
1-Year Est. Return 41.87%
 

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.

This Fund
S&P 500
This Quarter Est. Return
+3.47%
1 Year Est. Return
+41.87%
3 Year Est. Return
+122.61%
5 Year Est. Return
+129.48%
10 Year Est. Return
+649.67%
AUM
$70.9B
AUM Growth
+$3.72B
Cap. Flow
+$541M
Cap. Flow %
0.76%
Top 10 Hldgs %
4.9%
Holding
4,545
New
899
Increased
1,598
Reduced
1,287
Closed
504

Top Buys

Rank Stock Value
1
XLK icon
State Street Technology Select Sector SPDR ETF
XLK
+$395M
2
VNQ icon
Vanguard Real Estate ETF
VNQ
+$321M
3
XLY icon
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
+$318M
4
NOW icon
ServiceNow
NOW
+$272M
5
SCHH icon
Schwab US REIT ETF
SCHH
+$248M

Top Sells

Rank Stock Value
1
XLF icon
State Street Financial Select Sector SPDR ETF
XLF
+$547M
2
XLP icon
State Street Consumer Staples Select Sector SPDR ETF
XLP
+$447M
3
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$377M
4
QUAL icon
iShares MSCI USA Quality Factor ETF
QUAL
+$299M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$269M

Sector Composition

Rank Sector Weight
1 Technology 15.53%
2 Financials 13%
3 Industrials 11.22%
4 Healthcare 10.29%
5 Consumer Discretionary 9.16%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AAON icon
2451
Aaon
AAON
$6.52B
$1.72M ﹤0.01%
22,557
+10,373
+85% +$958K
XSVM icon
2452
Invesco S&P SmallCap Value with Momentum ETF
XSVM
$654M
$1.71M ﹤0.01%
30,000
+6,900
+30% +$389K
UGP icon
2453
Ultrapar
UGP
$6.8B
$1.71M ﹤0.01%
454,111
-363,568
-44% -$1.44M
CSX icon
2454
CSX Corp
CSX
$95.9B
$1.71M ﹤0.01%
47,200
-2,661
-5% -$95.2K
BTU icon
2455
CALL
Peabody Energy
BTU
$3.38B
$1.71M ﹤0.01%
+57,600
New +$1.69M
NRC icon
2456
NRC Health Common Stock
NRC
$485M
$1.71M ﹤0.01%
91,069
+30,157
+50% +$455K
IEO icon
2457
iShares US Oil & Gas Exploration & Production ETF
IEO
$607M
$1.71M ﹤0.01%
19,148
-44,600
-70% -$4.06M
ESEA icon
2458
Euroseas
ESEA
$538M
$1.71M ﹤0.01%
31,273
+14,686
+89% +$844K
FATE icon
2459
Fate Therapeutics
FATE
$309M
$1.7M ﹤0.01%
1,734,064
+833,307
+93% +$1M
PRQR icon
2460
ProQR Therapeutics
PRQR
$325M
$1.7M ﹤0.01%
839,384
+422,084
+101% +$986K
SBIO icon
2461
ALPS Medical Breakthroughs ETF
SBIO
$235M
$1.7M ﹤0.01%
+33,100
New +$1.53M
JRVR icon
2462
James River Group Holdings
JRVR
$191M
$1.69M ﹤0.01%
266,505
-9,248
-3% -$53.2K
WWR icon
2463
Westwater Resources
WWR
$77.9M
$1.69M ﹤0.01%
2,255,620
+1,230,665
+120% +$1.53M
AARD
2464
Aardvark Therapeutics
AARD
$153M
$1.69M ﹤0.01%
128,786
+65,217
+103% +$814K
PWR icon
2465
CALL
Quanta Services
PWR
$91.6B
$1.69M ﹤0.01%
+4,000
New +$1.76M
LOW icon
2466
PUT
Lowe's Companies
LOW
$120B
$1.69M ﹤0.01%
+7,000
New +$1.68M
TLRY icon
2467
Tilray
TLRY
$659M
$1.69M ﹤0.01%
186,646
+13,262
+8% +$162K
HLIT icon
2468
Harmonic Inc
HLIT
$1.35B
$1.68M ﹤0.01%
170,349
+17,052
+11% +$172K
CDNA icon
2469
CareDx
CDNA
$2.55B
$1.68M ﹤0.01%
+89,300
New +$1.5M
MG icon
2470
Mistras Group
MG
$610M
$1.68M ﹤0.01%
132,955
+36,927
+38% +$417K
VOXR
2471
Vox Royalty Corp
VOXR
$407M
$1.68M ﹤0.01%
354,412
+239,113
+207% +$1.08M
VST icon
2472
Vistra
VST
$47.9B
$1.68M ﹤0.01%
10,412
-20,100
-66% -$3.66M
MDB icon
2473
CALL
MongoDB
MDB
$32.6B
$1.68M ﹤0.01%
+4,000
New +$1.46M
PSX icon
2474
CALL
Phillips 66
PSX
$94.8B
$1.68M ﹤0.01%
13,000
+11,000
+550% +$1.48M
UFPT icon
2475
UFP Technologies
UFPT
$2.38B
$1.67M ﹤0.01%
7,543
-6,726
-47% -$1.44M
97 98
99
100 101

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John Overdeck's Q4 2025 Portfolio in Review

As of Q4 2025, John Overdeck held 4,545 positions worth $70.9B, up 5.5% from $67.2B the previous quarter. Its ten largest holdings account for 4.9% of the portfolio.

John Overdeck's Q4 2025 filing shows 899 new, 1,598 increased, 1,287 reduced and 504 closed positions. Its largest new stake was Vanguard Real Estate ETF: 3,573,400 shares worth $316M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $547M.

By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 16% a quarter earlier, followed by Financials and Industrials.

  • John Overdeck's largest Q4 2025 buy was Vanguard Real Estate ETF: 3,573,400 shares worth $316M.
  • John Overdeck added most to State Street Technology Select Sector SPDR ETF in Q4 2025, an estimated $395M increase.
  • John Overdeck's biggest Q4 2025 reduction was State Street Financial Select Sector SPDR ETF, cutting an estimated $547M.
  • John Overdeck fully exited State Street SPDR Dow Jones Industrial Average ETF Trust in Q4 2025, selling an estimated $240M.
  • John Overdeck's ten largest holdings make up 4.9% of its $70.9B portfolio in Q4 2025.
  • John Overdeck opened 899 new positions and closed 504 in Q4 2025.
  • John Overdeck's portfolio value rose 5.5% quarter-over-quarter to $70.9B.

Based on Two Sigma Investments's 13F filing for Q4 2025, filed 17 Feb 2026.