AltMountain

Two Sigma Investments, LP

New York, NY · CRD 137137
Hedge fund manager

Two Sigma Investments, LP is an SEC-registered investment adviser based in New York, NY that reports managing 62 hedge funds on Form ADV. It reports $232.8 billion in regulatory assets under management. Its private funds, of all types, hold $310.9 billion in gross assets. Its disclosed U.S. stock holdings returned an estimated +14.1% 2026 YTD through Jun 30 (S&P 500: +9.5%), based on 13F filings. Over a longer period they returned an estimated +44.0% from Q3 2024 to Q2 2026, compared with +37.2% for the S&P 500, based on 13F filings.

Regulatory assets under management
$232.8 billionForm ADV Item 5.F
Gross assets of private funds
$310.9 billionAll private fund types, Form ADV
Hedge funds managed
6262 private funds in total
Employees
1,555Form ADV Item 5.A
Registration
SEC-registered adviserCRD 137137
Latest Form ADV
03/31/2026Disciplinary disclosures: yes, see SEC record

Estimated 13F portfolio performance

Est. 2026 YTD+14.1%Through Q2 2026 · S&P 500 +9.5%
Est. 2-year return+44.0%Q3 2024 – Q2 2026
S&P 500+37.2%Same quarters, price only
13F holdings$128.6 billion3,822 positions, 2026-06-30
$100$122$144Q3 2024Q1 2025Q3 2025Q1 202613F est. $144S&P 500 $137
QuarterEst. 13F returnS&P 500
Q2 2026+14.8%+14.8%
Q1 2026-0.6%-4.6%
Q4 2025+1.7%+2.4%
Q3 2025+7.9%+7.8%
Q2 2025+11.3%+10.4%
Q1 2025-3.5%-4.5%
Q4 2024+0.0%+2.1%
Q3 2024+7.0%+5.4%

Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures

Largest disclosed holdings

  • Amazon Com Inc Com$1.4 billion
  • Nvidia Corp$1.3 billion
  • Apple Inc Com$1.2 billion
  • Tesla Mtrs Inc Com$1.2 billion
  • Berkshire Hathaway Inc Del CL B New$1.1 billion
  • J P Morgan Chase & Co.$968.1 million
  • Mastercard Inc.$945.6 million
  • Costco Whsl Corp New$941.3 million
  • Asml Holding N.V.$918.1 million
  • Advanced Micro Devices Inc Com$880.3 million

As of 2026-06-30, from 13F filing by Two Sigma Investments, LP.

Hedge funds filing Form D (43)

Fund
First sale
Raised
Investors
Minimum
YTD performance
Two Sigma Absolute Return Enhanced Fund, LP
New York, NY
First saleJul 2012
Raised$8.6B
Investors128
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Active Extension U.S. All Cap Equity Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleOct 2012
Raised$5.6B
Investors207
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Spectrum U.S. Fund, LP
New York, NY
First saleApr 2004
Raised$5.4B
Investors203
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma World Core Fund, LP
New York, NY
First saleJan 2015
Raised$4.4B
Investors45
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Absolute Return Enhanced Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleAug 2012
Raised$4.1B
Investors106
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Spectrum Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleApr 2004
Raised$3.0B
Investors95
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Active Extension U.S. All Cap Equity Onshore Fund, LP
New York, NY
First saleJun 2024
Raised$2.5B
Investors17
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Risk Premia Enhanced Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleAug 2015
Raised$2.5B
Investors62
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Mercury Fund, LP
New York, NY
First saleMay 2019
Raised$2.5B
Investors7
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Risk Premia Enhanced Fund, LP
New York, NY
First saleSep 2015
Raised$2.4B
Investors70
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Alya Fund, LLC
New York, NY
First saleJul 2020
Raised$2.2B
Investors1
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma International Core Fund, LP
New York, NY
First saleJul 2012
Raised$2.1B
Investors49
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Compass Enhanced U.S. Fund, L.P.
New York, NY
First saleAug 2009
Raised$1.8B
Investors76
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Absolute Return Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleFeb 2012
Raised$1.5B
Investors55
Minimum$1.0M
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma China Core Equity Fund, LP
New York, NY
First saleAug 2018
Raised$1.3B
Investors74
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Hamilton Fund, LLC
New York, NY
First saleJan 2014
Raised$1.1B
Investors3
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Titan Fund, LP
New York, NY
First saleMay 2025
Raised$1.0B
Investors1
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Absolute Return Fund, LP
New York, NY
First saleNov 2011
Raised$1.0B
Investors28
Minimum$1.0M
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Beacon Fund, LP
New York, NY
First saleAug 2025
Raised$976M
Investors69
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Risk Premia Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleAug 2015
Raised$918M
Investors27
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Neptune Enhanced Fund LP
New York, NY
First saleOct 2022
Raised$903M
Investors10
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Lost Pines Fund, LP
New York, NY
First saleApr 2022
Raised$802M
Investors1
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma U.S. Fund, LP
New York, NY
First saleApr 2002
Raised$678M
Investors58
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Blazar Fund, LLC
New York, NY
First saleDec 2022
Raised$647M
Investors281
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Quasar Fund, LP
New York, NY
First saleApr 2021
Raised$571M
Investors2
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Eclipse U.S. Fund, LP
New York, NY
First saleJan 2004
Raised$560M
Investors37
Minimum$1.0M
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Risk Premia Fund, LP
New York, NY
First saleSep 2015
Raised$519M
Investors28
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma China Core Equity Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleDec 2018
Raised$514M
Investors74
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Beacon Bridge Fund, LP
New York, NY
First saleSep 2026
Raised$437M
Investors7
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Active Extension U.S. Small Cap Equity Fund, LP
New York, NY
First saleOct 2012
Raised$426M
Investors1
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Luna, LLC
New York, NY
First saleJun 2013
Raised$335M
Investors471
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Mercury Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleApr 2019
Raised$325M
Investors2
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma World Core Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleDec 2015
Raised$250M
Investors13
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Horizon Fund, LP
New York, NY
First saleMay 2024
Raised$219M
Investors3
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Aurora Fund, LP
New York, NY
First saleMay 2025
Raised$215M
Investors2
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Compass Enhanced Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleMar 2010
Raised$163M
Investors17
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Eclipse Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleJan 2004
Raised$114M
Investors13
Minimum$1.0M
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Active Extension U.S. All Cap Equity Beta Adjusted Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleAug 2015
Raised$85.0M
Investors1
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Aurora Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleDec 2025
Raised$78.9M
Investors1
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleSep 2002
Raised$12.9M
Investors6
Minimum$1.0M
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Astra Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsEmergingOffshore
First saleOct 2026
Raised$10.0M
Investors1
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Astra Fund, LP
New York, NYEmerging
First saleOct 2026
Raised$5.0M
Investors1
MinimumNone set
YTD performance+14.1%13F est. YTD · thru Q2 2026
Two Sigma Neptune Enhanced Cayman Fund, Ltd.
Grand Cayman, Cayman IslandsEmergingOffshore
First saleAug 2026
Raised$500K
Investors1
Minimum$100K
YTD performance+14.1%13F est. YTD · thru Q2 2026

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private equity funds filing Form D (5)

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private investment funds filing Form D (1)

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private funds reported on Form ADV (24)

Fund
Gross assets
Minimum
Owners
Adviser
Two Sigma Spectrum Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$18B
MinimumNone set
Owners530
AdviserTwo Sigma Investments, LP
Two Sigma Equity Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$17B
MinimumNone set
Owners363
AdviserTwo Sigma Investments, LP
Two Sigma Horizon Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$13B
MinimumNone set
Owners744
AdviserTwo Sigma Investments, LP
Two Sigma Equity Spectrum Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$9.2B
MinimumNone set
Owners541
AdviserTwo Sigma Investments, LP
Two Sigma Strategies Fund, LLC
Delaware, United StatesHedge fund
Gross assets$8.9B
Minimum$1.0M
Owners185
AdviserTwo Sigma Investments, LP
Two Sigma Spectrum Fund, LTD.
Cayman IslandsHedge fund
Gross assets$8.7B
MinimumNone set
Owners206
AdviserTwo Sigma Investments, LP
Two Sigma Futures Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$6.6B
MinimumNone set
Owners543
AdviserTwo Sigma Investments, LP
Two Sigma Mercury Master Fund, LLC
Delaware, United StatesHedge fund
Gross assets$3.3B
MinimumNone set
Owners10
AdviserTwo Sigma Investments, LP
Two Sigma Absolute Return Allocator Fund, LLC
Delaware, United StatesHedge fund
Gross assets$1.9B
MinimumNone set
Owners567
AdviserTwo Sigma Investments, LP
Two Sigma Hamilton Fund, LLC
Delaware, United StatesHedge fund
Gross assets$1.8B
Minimum$1.0M
Owners3
AdviserTwo Sigma Investments, LP
Two Sigma Blazar Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$1.7B
MinimumNone set
Owners124
AdviserTwo Sigma Investments, LP
Two Sigma Compass Master Fund, LTD.
Cayman IslandsHedge fund
Gross assets$616M
MinimumNone set
Owners35
AdviserTwo Sigma Investments, LP
Two Sigma Quasar Fund, LP
Delaware, United StatesHedge fund
Gross assets$604M
Minimum$1.0M
Owners2
AdviserTwo Sigma Investments, LP
Two Sigma Neptune Allocator Fund, LLC
Delaware, United StatesHedge fund
Gross assets$456M
MinimumNone set
Owners11
AdviserTwo Sigma Investments, LP
Two Sigma Navigator Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$294M
MinimumNone set
Owners744
AdviserTwo Sigma Investments, LP
Two Sigma Eclipse Fund, LTD.
Cayman IslandsHedge fund
Gross assets$181M
MinimumNone set
Owners29
AdviserTwo Sigma Investments, LP
Two Sigma Horizon Fund, LP
Delaware, United StatesHedge fund
Gross assets$158M
Minimum$1.0M
Owners4
AdviserTwo Sigma Investments, LP
Hamilton Investments, LP
BermudaPrivate fund
Gross assets$79.7M
MinimumNone set
Owners70
AdviserTwo Sigma Investments, LP
Two Sigma Horizon Cayman Portfolio, LLC
Cayman IslandsHedge fund
Gross assets$65.4M
MinimumNone set
Owners744
AdviserTwo Sigma Investments, LP
Two Sigma Fund, LP
Delaware, United StatesHedge fund
Gross assets$55.3M
MinimumNone set
Owners15
AdviserTwo Sigma Investments, LP
Two Sigma Discovery Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$15.2M
MinimumNone set
Owners185
AdviserTwo Sigma Investments, LP
Two Sigma Pioneer Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$9.1M
MinimumNone set
Owners185
AdviserTwo Sigma Investments, LP
Two Sigma Galileo Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$7.8M
MinimumNone set
Owners185
AdviserTwo Sigma Investments, LP
Two Sigma Rates Portfolio, LLC
Delaware, United StatesHedge fund
Gross assets$138K
MinimumNone set
Owners186
AdviserTwo Sigma Investments, LP

As reported in the adviser's Form ADV filed Aug 7, 2024. Funds also listed from Form D are shown above.

Fund vehicles: feeder funds and single-deal vehicles (10)

Fund
Gross assets
Minimum
Owners
Adviser
Two Sigma Spectrum Cayman Fund, LTD.
Cayman IslandsHedge fund
Gross assets$6.0B
Minimum$1.0M
Owners141
AdviserTwo Sigma Investments, LP
Two Sigma Spectrum U.S. Fund, LP
Delaware, United StatesHedge fund
Gross assets$2.8B
Minimum$1.0M
Owners65
AdviserTwo Sigma Investments, LP
Two Sigma Mercury Fund, LP
Delaware, United StatesHedge fund
Gross assets$2.5B
Minimum$1.0M
Owners5
AdviserTwo Sigma Investments, LP
Two Sigma Mercury Cayman Fund, LTD.
Cayman IslandsHedge fund
Gross assets$607M
Minimum$1.0M
Owners5
AdviserTwo Sigma Investments, LP
Two Sigma Compass Enhanced U.S. Fund, LP
Delaware, United StatesHedge fund
Gross assets$545M
Minimum$1.0M
Owners22
AdviserTwo Sigma Investments, LP
Two Sigma Eclipse Cayman Fund, LTD.
Cayman IslandsHedge fund
Gross assets$135M
Minimum$1.0M
Owners20
AdviserTwo Sigma Investments, LP
Two Sigma Compass Enhanced Cayman Fund, LTD.
Cayman IslandsHedge fund
Gross assets$61.5M
Minimum$1.0M
Owners13
AdviserTwo Sigma Investments, LP
Two Sigma Eclipse U.S. Fund, LP
Delaware, United StatesHedge fund
Gross assets$42.7M
Minimum$1.0M
Owners9
AdviserTwo Sigma Investments, LP
Two Sigma U.S. Fund, LP
Delaware, United StatesHedge fund
Gross assets$40.6M
Minimum$1.0M
Owners12
AdviserTwo Sigma Investments, LP
Two Sigma Cayman Fund, LTD.
Cayman IslandsHedge fund
Gross assets$11.9M
Minimum$1.0M
Owners3
AdviserTwo Sigma Investments, LP

Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.

From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures