Quant Hedge Fund · CIK 0001179392
Two Sigma Investments
Two Sigma Investments, a quant hedge fund overseeing $70.90B 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.
Portfolio
$70.90B
Positions
3467
Quarter
2025Q4
Filings tracked
40
Biggest winner since filing
MUMICRON TECHNOLOGY INC
+198.8%
+$794.0M
Biggest loser since filing
HUMHUMANA INC
-38.5%
−$94.2M
Investment strategy
Two Sigma Investments is a large fund with a diversified portfolio. Top 10 positions are only 7% of the equity book.
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<iframe src="https://openstocks.me/embed/stock/SPY" width="100%" height="480" frameborder="0" loading="lazy" title="SPY chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Holdings
11 sectors3018 positions
Top 3 = 3% of book · SPY, QQQ, DASH
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Performance
vs SPY40 quarters tracked
Mark-to-market portfolio growth vs SPY benchmark, with AUM and concentration history.
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Options & derivatives
Bearish bets67 option positions
Largest: PUT CCL ($117.8M notional)
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Activity & trades
Quarter-by-quarterLast move 2025Q4
SOLD RR — and 4 more recent moves.
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