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Parallax Volatility Advisers, L.P.

Location
San Francisco, CA
Portfolio Value
Large $50,949,793,842
Diversification
Moderately concentrated
Filing Date
Global Rank
#166 / 8,691 ▲ 34
Top Industry
Semiconductors 19.5%
Period ended 2 months ago
Filed Aug 14, 2026 · 26d
26 quarters · since Mar 2020

Portfolio Concentration

680 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
45.0%
+23.5 pts
Top 5
68.1%
+20.8 pts
Top 10
72.1%
+15.8 pts
HHI
2,361
Sep 2023 → Jun 2026 · range 266 – 2,361
Moderately concentrated+1,653

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Unclassified 66.0% $33,618,515,570
Technology 13.1% $6,664,762,714
Financial Services 5.2% $2,635,867,539
Consumer Cyclical 4.4% $2,239,356,586
Communication Services 3.1% $1,564,629,617
Industrials 2.5% $1,275,551,781
Energy 2.2% $1,126,818,242
Consumer Defensive 1.0% $514,875,009
Healthcare 0.9% $467,199,906
Basic Materials 0.9% $438,014,078
Utilities 0.4% $220,015,974
Real Estate 0.4% $184,186,826

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open
962,115 $174,941,370
2,178,770 $61,942,431
157,471 $7,005,230

Portfolio Positions

Export CSV View 13F filing
680 tracked positions · $50,949,793,842 total · filing declares 1,502 positions · $58,866,296,771 · as of Jun 30, 2026
Showing 1–50 of 680 positions by value · page 1 of 14
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.