Skip to main content

Parallax Volatility Advisers, L.P.

Position in RIO — Rio Tinto PLC

CIK 1521001 San Francisco, CA

Position in RIO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
-$2,208,547 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
26 quarters on record

Common Shares in RIO Over Time

Shares Held

Position Value (USD)

Derivatives in RIO

reported options exposure · as of Jun 30, 2026
CallValue
$26,646,851
CallShares
280,700
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Other Industrial Metals & Mining

Basic Materials · as of Jun 30, 2026

Parallax Volatility Advisers, L.P. holds $551,095 across 1 Other Industrial Metals & Mining name.

# Ticker Company Shares Value (USD) Open

All Filings in RIO

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $26,646,851 280,700
2026-03-31 $74,632 800
2026-03-31 $2,208,547 23,674
2026-03-31 $14,562,569 156,100
2025-12-31 $2,088,783 26,100
2025-12-31 $19,351,254 241,800
2025-09-30 $11,188,695 169,500
2025-09-30 $66,010 1,000
2025-09-30 $450,188 6,820
2025-06-30 $136,958 2,348
2025-06-30 $4,666,400 80,000
2025-03-31 $3,598,792 59,900
2024-12-31 $15,202,385 258,500
2024-12-31 $735,125 12,500
2024-09-30 $17,436,650 245,000
2024-09-30 $889,625 12,500
2024-06-30 $850,497 12,900
2024-06-30 $52,744 800
2024-03-31 $1,051,710 16,500
2024-03-31 $50,992 800
2023-12-31 $4,437,816 59,600
2023-12-31 $1,243,482 16,700
2023-09-30 $490,028 7,700
2023-09-30 $6,079,720 95,533
2023-09-30 $1,011,876 15,900
2023-06-30 $1,078,896 16,900
2023-06-30 $727,776 11,400
2023-03-31 $11,106,340 161,900
2023-03-31 $80,262 1,170
2023-03-31 $7,319,620 106,700
2022-12-31 $38,996,240 547,700
2022-12-31 $29,832,800 419,000
2022-09-30 $38,343,784 696,400
2022-09-30 $9,976,872 181,200
2022-06-30 $5,154,500 84,500
2022-06-30 $27,565,900 451,900
2022-03-31 $5,788,800 72,000
2022-03-31 $40,835,160 507,900
2021-12-31 $6,633,754 99,100
2021-12-31 $10,797,422 161,300
2021-09-30 $581,334 8,700
2021-09-30 $33,410 500
2021-06-30 $58,723 700
2021-06-30 $5,620,630 67,000
2021-03-31 $39,065,715 503,100
2021-03-31 $6,406,125 82,500
2021-03-31 $583,617 7,516
2020-12-31 $38,286,980 509,000
2020-12-31 $28,816,782 383,100
2020-12-31 $861,645 11,455