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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  3. Two Sigma Investments
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Quant Hedge Fund · CIK 0001179392

Two Sigma Investments

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  • Concentrated
  • Large Fund

Two Sigma Investments, a quant hedge fund overseeing $67.06B in disclosed equity holdings (SEC CIK 0001179392). The latest portfolio (2025Q4) discloses 3467 positions across 11 sectors, with the largest positions in XLY, XLK and VUG. On a mark-to-market basis the tracked portfolio has returned 27.5% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Two's filingsView holdings↓
Portfolio
$67.06B
Positions
3467
Quarter
2025Q4
Filings tracked
40
1Y+27.5%Since filing+136.3%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1
1-YearTWR
+27.51%
since 2024Q4
3-Year
—
insufficient history
5-Year
—
insufficient history
10-Year
—
insufficient history

Performance overview

We mark Two Sigma Investments's disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). Two’s portfolio is 27.5% over the last 12 months · 136.3% since 2016Q1.

Portfolio growth vs SPY
Rebased to 100 at 2021Q2 · through 2025Q4
Two Sigma Investments
+80.7%
SPY
+69.5%
Alpha
+11.1pp
741031321601892021Q22023Q32025Q4
Portfolio line is the GIPS-compliant time-weighted return chain-linked across the manager's quarterly 13F filings — unaffected by capital flows. Quarters with insufficient held-through coverage are skipped, which can briefly flatten the line.
Capital flow per quarter
BuysSellsNet
+$24.78B+$12.39B$0-$12.39B-$24.78B'21Q4'22Q1'22Q2'22Q3'22Q4'23Q1'23Q2'23Q3'23Q4'24Q1'24Q2'24Q3'24Q4'25Q1'25Q2'25Q3
Latest · 2025Q3
+$5.43B
Lifetime buys
$241.71B
Lifetime sells
$227.87B
Portfolio over time
AUMPositions
$0$21.50B$42.99B$65.14B33492376'21Q4'23Q3'25Q3
QoQ AUM
+17.3%
16Q lifetime AUM
+59.8%
QoQ positions
+248
16Q lifetime positions
+834
Position concentration
3349 positions
Top 1
1%
of book
  • Top 11%$680.4MSPY
  • Top 2-53%$1.89BXLF, XLP, VUG
  • Top 6-102%$1.56BQUAL, IVV, PLTR
  • Top 11-204%$2.67BLMT, ALNY, YANDEX N V
  • Rest90%$58.34BRest of port