Stocks
RIO
Parallax Volatility Advisers, L.P.

Parallax Volatility Advisers, L.P.

CIK

1521001

City

San Francisco

State / Country

Stock

RIO — Rio Tinto PLC

Top Portfolio Positions

571 positions · $29,915,779,475 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	12,266,800	$7,977,590,712	26.67%
QQQ	Invesco Qqq Trust, Series 1	7,438,500	$4,293,353,430	14.35%
NVDA	Nvidia Corp Technology	4,679,474	$816,100,265	2.73%
GLD	Spdr Gold Trust	1,555,773	$669,433,564	2.24%
META	Meta Platforms, Inc. Communication Services	1,021,600	$584,488,008	1.95%
AAPL	Apple Inc. Technology	1,836,016	$465,962,500	1.56%
TSLA	Tesla, Inc. Consumer Cyclical	1,225,532	$455,591,521	1.52%
AMZN	Amazon Com Inc Consumer Cyclical	1,976,500	$411,645,655	1.38%
IBIT	iShares Bitcoin Trust ETF	9,338,200	$358,773,644	1.20%
CVX	Chevron Corp Energy	1,531,575	$316,882,867	1.06%

Portfolio Trend

33 quarters · across all stocks

Holdings in RIO

Compact Export CSV

Shares Held

Position Value (USD)

50 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$74,632	800	-96.6%	Put	Sole	2026-05-15
2026-03-31	$2,208,547	23,674	-84.8%	Shares	Sole	2026-05-15
2026-03-31	$14,562,569	156,100	+498.1%	Call	Sole	2026-05-15
2025-12-31	$2,088,783	26,100	-89.2%	Put	Sole	2026-02-17
2025-12-31	$19,351,254	241,800	+42.7%	Call	Sole	2026-02-17
2025-09-30	$11,188,695	169,500	+16850.0%	Call	Sole	2025-11-14
2025-09-30	$66,010	1,000	-85.3%	Put	Sole	2025-11-14
2025-09-30	$450,188	6,820	+190.5%	Shares	Sole	2025-11-14
2025-06-30	$136,958	2,348	-97.1%	Shares	Sole	2025-08-14
2025-06-30	$4,666,400	80,000	+33.6%	Call	Sole	2025-08-14
2025-03-31	$3,598,792	59,900	-76.8%	Call	Sole	2025-05-15
2024-12-31	$15,202,385	258,500	+1968.0%	Call	Sole	2025-02-14
2024-12-31	$735,125	12,500	-94.9%	Put	Sole	2025-02-14
2024-09-30	$17,436,650	245,000	+1860.0%	Call	Sole	2024-11-14
2024-09-30	$889,625	12,500	-3.1%	Put	Sole	2024-11-14
2024-06-30	$850,497	12,900	+1512.5%	Put	Sole	2024-08-14
2024-06-30	$52,744	800	-95.2%	Call	Sole	2024-08-14
2024-03-31	$1,051,710	16,500	+1962.5%	Put	Sole	2024-05-15
2024-03-31	$50,992	800	-98.7%	Call	Sole	2024-05-15
2023-12-31	$4,437,816	59,600	+256.9%	Call	Sole	2024-02-14
2023-12-31	$1,243,482	16,700	+116.9%	Put	Sole	2024-02-14
2023-09-30	$490,028	7,700	-91.9%	Call	Sole	2023-11-14
2023-09-30	$6,079,720	95,533	+500.8%	Shares	Sole	2023-11-14
2023-09-30	$1,011,876	15,900	-5.9%	Put	Sole	2023-11-14
2023-06-30	$1,078,896	16,900	+48.2%	Put	Sole	2023-08-14
2023-06-30	$727,776	11,400	-93.0%	Call	Sole	2023-08-14
2023-03-31	$11,106,340	161,900	+13737.6%	Call	Sole	2023-05-15
2023-03-31	$80,262	1,170	-98.9%	Shares	Sole	2023-05-15
2023-03-31	$7,319,620	106,700	-74.5%	Put	Sole	2023-05-15
2022-12-31	$29,832,800	419,000	-23.5%	Put	Sole	2023-02-27
2022-12-31	$38,996,240	547,700	+202.3%	Call	Sole	2023-02-27
2022-09-30	$9,976,872	181,200	-74.0%	Put	Sole	2022-11-21
2022-09-30	$38,343,784	696,400	+724.1%	Call	Sole	2022-11-21
2022-06-30	$5,154,500	84,500	-81.3%	Put	Sole	2022-08-17
2022-06-30	$27,565,900	451,900	+527.6%	Call	Sole	2022-08-17
2022-03-31	$5,788,800	72,000	-85.8%	Put	Sole	2022-05-16
2022-03-31	$40,835,160	507,900	+412.5%	Call	Sole	2022-05-16
2021-12-31	$6,633,754	99,100	-38.6%	Put	Sole	2022-02-14
2021-12-31	$10,797,422	161,300	+1754.0%	Call	Sole	2022-02-14
2021-09-30	$581,334	8,700	+1640.0%	Put	Sole	2021-11-15
2021-09-30	$33,410	500	-28.6%	Call	Sole	2021-11-15
2021-06-30	$58,723	700	-99.0%	Put	Sole	2021-08-16
2021-06-30	$5,620,630	67,000	-86.7%	Call	Sole	2021-08-16
2021-03-31	$39,065,715	503,100	+509.8%	Put	Sole	2021-05-14
2021-03-31	$6,406,125	82,500	+997.7%	Call	Sole	2021-05-14
2021-03-31	$583,617	7,516	-99.7%	Shares	Sole	2021-05-14
2020-09-30	$140,092,722	2,319,800	+28.3%	Call	Sole	2020-11-13
2020-09-30	$109,233,432	1,808,800	+7002.0%	Put	Sole	2020-11-13
2020-09-30	$1,538,072	25,469	-23.1%	Shares	Sole	2020-11-13
2020-06-30	$1,859,614	33,101	—	Shares	Sole	2020-08-14
No 13F history on record for this holder in this stock.