Parallax Volatility Advisers
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Parallax Volatility Advisers’s Opendoor OPEN Stock Holding History

Parallax Volatility Advisers’s Portfolio OPEN Stock Details OPEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$296K Sell
64,121
-55,309
-46% -$265K ﹤0.01% 1192
2026
Q1 		$651K Sell
119,430
-82,871
-41% -$447K ﹤0.01% 1018
2025
Q4 		$1.18M Buy
202,301
+163,654
+423% +$1.17M ﹤0.01% 1068
2025
Q3 		$298K Buy
+38,647
New +$157K ﹤0.01% 1323
2024
Q4 		– Sell
-1,159
Closed -$2.24K – 2248
2024
Q3 		$2.24K Buy
+1,159
New +$2.35K ﹤0.01% 1960
2024
Q1 		– Sell
-4,810
Closed -$20.9K – 2210
2023
Q4 		$20.9K Buy
4,810
+2,570
+115% +$7.17K ﹤0.01% 1983
2023
Q3 		$5.72K Sell
2,240
-17,110
-88% -$61.7K ﹤0.01% 2140
2023
Q2 		$75.3K Buy
19,350
+17,726
+1,092% +$38.5K ﹤0.01% 2030
2023
Q1 		$2.77K Buy
+1,624
New +$2.68K ﹤0.01% 2538
2022
Q4 		– Sell
-49,875
Closed -$95.6K – 3151
2022
Q3 		$150K Sell
49,875
-179,556
-78% -$824K ﹤0.01% 2394
2022
Q2 		$1.05M Sell
229,431
-140,689
-38% -$927K ﹤0.01% 1620
2022
Q1 		$3.1M Sell
370,120
-224,700
-38% -$2.09M ﹤0.01% 1189
2021
Q4 		$8.41M Buy
+594,820
New +$11M 0.01% 964
2021
Q3 		– Sell
-76,822
Closed -$1.24M – 3297
2021
Q2 		$1.32M Buy
+76,822
New +$1.32M ﹤0.01% 1809

Other funds holding OPEN

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
LC
Lennar Corp Miami, Florida $63.2M AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Parallax Volatility Advisers's OPEN Position: Q2 2026 in Review

Parallax Volatility Advisers reduced its Opendoor (OPEN) stake by 46% in Q2 2026, selling an estimated $265K and leaving 64,121 shares worth $296K. The position accounts for ﹤0.01% of the portfolio, ranked #1192.

Parallax Volatility Advisers first reported a position in OPEN in Q2 2021 and has held it in 14 quarters since. The position peaked at $8.41M in Q4 2021. 391 funds tracked by Wall St. Rank hold OPEN as of Q2 2026.

  • Parallax Volatility Advisers held 64,121 shares of Opendoor worth $296K as of Q2 2026.
  • Parallax Volatility Advisers sold 55,309 Opendoor shares in Q2 2026, an estimated $265K.
  • Opendoor made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q2 2026, its #1192 holding.
  • Parallax Volatility Advisers first reported a position in Opendoor in Q2 2021 and has held it in 14 quarters since.
  • Parallax Volatility Advisers's Opendoor position peaked at $8.41M in Q4 2021.
  • 391 funds tracked by Wall St. Rank held Opendoor as of Q2 2026.

Based on Parallax Volatility Advisers's 13F filing for Q2 2026, filed 14 Aug 2026.