Parallax Volatility Advisers
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Parallax Volatility Advisers’s Rio Tinto RIO Stock Holding History

Parallax Volatility Advisers’s Portfolio RIO Stock Details RIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$15.3M Sell
156,100
-85,700
-35% -$7.81M 0.04% 308
2025
Q4 		$19.4M Buy
241,800
+72,300
+43% +$5.2M 0.04% 312
2025
Q3 		$11.2M Buy
169,500
+89,500
+112% +$5.53M 0.02% 431
2025
Q2 		$4.67M Buy
80,000
+20,100
+34% +$1.19M 0.01% 640
2025
Q1 		$3.6M Sell
59,900
-198,600
-77% -$12.2M 0.01% 706
2024
Q4 		$15.2M Buy
258,500
+13,500
+6% +$862K 0.03% 425
2024
Q3 		$17.4M Buy
245,000
+244,200
+30,525% +$15.7M 0.03% 366
2024
Q2 		$52.7K Hold
800
– – ﹤0.01% 1752
2024
Q1 		$51K Sell
800
-58,800
-99% -$3.94M ﹤0.01% 1635
2023
Q4 		$4.44M Buy
59,600
+51,900
+674% +$3.48M 0.01% 868
2023
Q3 		$490K Sell
7,700
-3,700
-32% -$236K ﹤0.01% 1609
2023
Q2 		$728K Sell
11,400
-150,500
-93% -$9.68M ﹤0.01% 1527
2023
Q1 		$11.1M Sell
161,900
-385,800
-70% -$28M 0.02% 549
2022
Q4 		$39M Sell
547,700
-148,700
-21% -$9.34M 0.06% 337
2022
Q3 		$38.3M Buy
696,400
+244,500
+54% +$14.1M 0.06% 346
2022
Q2 		$27.6M Sell
451,900
-56,000
-11% -$4.01M 0.03% 401
2022
Q1 		$40.8M Buy
507,900
+346,600
+215% +$26.3M 0.02% 321
2021
Q4 		$10.8M Buy
161,300
+160,800
+32,160% +$10.4M 0.01% 573
2021
Q3 		$34K Sell
500
-66,500
-99% -$5.19M ﹤0.01% 1848
2021
Q2 		$5.62M Sell
67,000
-15,500
-19% -$1.33M 0.01% 625
2021
Q1 		$6.41M Sell
82,500
-300,600
-78% -$24.7M 0.01% 464
2020
Q4 		$28.8M Sell
383,100
-1,936,700
-83% -$127M 0.03% 436
2020
Q3 		$140M Buy
2,319,800
+322,600
+16% +$19.8M 0.1% 170
2020
Q2 		$112M Buy
1,997,200
+1,995,500
+117,382% +$101M 0.13% 125
2020
Q1 		$79K Sell
1,700
-229,300
-99% -$11.8M ﹤0.01% 2188
2019
Q4 		$13.7M Buy
231,000
+41,200
+22% +$2.23M 0.02% 542
2019
Q3 		$9.89M Sell
189,800
-180,700
-49% -$9.8M 0.01% 594
2019
Q2 		$23.1M Buy
370,500
+69,600
+23% +$4.17M 0.03% 316
2019
Q1 		$17.7M Buy
+300,900
New +$16.5M 0.02% 340
2018
Q3 		– Sell
-35,900
Closed -$1.99M – 3401
2018
Q2 		$1.99M Buy
+35,900
New +$2.01M ﹤0.01% 906
2018
Q1 		– Sell
-300
Closed -$16K – 3862
2017
Q4 		$16K Sell
300
-455,500
-100% -$22.2M ﹤0.01% 3725
2017
Q3 		$21.5M Sell
455,800
-44,500
-9% -$2.07M 0.04% 247
2017
Q2 		$21.2M Buy
500,300
+235,200
+89% +$9.43M 0.04% 246
2017
Q1 		$10.8M Sell
265,100
-104,500
-28% -$4.44M 0.02% 366
2016
Q4 		$14.2M Sell
369,600
-83,400
-18% -$3.06M 0.03% 353
2016
Q3 		$15.1M Buy
453,000
+92,100
+26% +$2.93M 0.03% 328
2016
Q2 		$11.3M Buy
360,900
+211,200
+141% +$6.31M 0.02% 405
2016
Q1 		$4.23M Sell
149,700
-261,800
-64% -$6.97M 0.01% 629
2015
Q4 		$12M Buy
411,500
+17,600
+4% +$595K 0.02% 401
2015
Q3 		$13.3M Buy
393,900
+328,400
+501% +$12.3M 0.03% 345
2015
Q2 		$2.7M Buy
65,500
+64,900
+10,817% +$2.85M 0.01% 966
2015
Q1 		$25K Sell
600
-22,700
-97% -$1.03M ﹤0.01% 3471
2014
Q4 		$1.07M Sell
23,300
-61,800
-73% -$2.91M ﹤0.01% 1460
2014
Q3 		$4.19M Buy
85,100
+84,500
+14,083% +$4.67M 0.01% 789
2014
Q2 		$32K Buy
600
+500
+500% +$27.1K ﹤0.01% 3232
2014
Q1 		$6K Sell
100
-300
-75% -$16.3K ﹤0.01% 3164
2013
Q4 		$23K Hold
400
– – ﹤0.01% 2644
2013
Q3 		$20K Sell
400
-3,900
-91% -$182K ﹤0.01% 2281
2013
Q2 		$176K Buy
+4,300
New +$192K ﹤0.01% 1065

Other funds holding RIO

Fisher Asset Management
Fisher Asset Management Camas, Washington $295B AUM 31.6% 1-Year Est. Return
State Farm Mutual Automobile Insurance
State Farm Mutual Automobile Insurance Bloomington, Illinois $127B AUM 32.55% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Parallax Volatility Advisers's RIO Position: Q1 2026 in Review

Parallax Volatility Advisers opened a new position in Rio Tinto (RIO) in Q1 2026: 23,674 shares worth $2.31M. The stake represents 0.01% of the portfolio and ranks #754 among its holdings. This is a return to the name: Parallax Volatility Advisers previously reported a position in RIO as recently as Q3 2025.

Parallax Volatility Advisers first reported a position in RIO in Q3 2013 and has held it in 27 quarters since. The position peaked at $12.4M in Q4 2015. 935 funds tracked by Wall St. Rank hold RIO as of Q1 2026.

  • Parallax Volatility Advisers held 23,674 shares of Rio Tinto worth $2.31M as of Q1 2026.
  • Rio Tinto was a new Parallax Volatility Advisers position in Q1 2026.
  • Rio Tinto made up 0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #754 holding.
  • Parallax Volatility Advisers first reported a position in Rio Tinto in Q3 2013 and has held it in 27 quarters since.
  • Parallax Volatility Advisers's Rio Tinto position peaked at $12.4M in Q4 2015.
  • 935 funds tracked by Wall St. Rank held Rio Tinto as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.