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 		$8.32K Sell
1,800
-25,600
-93% -$123K ﹤0.01% 1427
2026
Q1 		$149K Sell
27,400
-173,900
-86% -$937K ﹤0.01% 1208
2025
Q4 		$1.17M Buy
201,300
+103,753
+106% +$743K ﹤0.01% 1070
2025
Q3 		$752K Buy
+97,547
New +$396K ﹤0.01% 1176
2024
Q1 		– Sell
-84,423
Closed -$366K – 2209
2023
Q4 		$366K Hold
84,423
– – ﹤0.01% 1660
2023
Q3 		$216K Sell
84,423
-15,190
-15% -$54.7K ﹤0.01% 1806
2023
Q2 		$388K Buy
99,613
+8,783
+10% +$19.1K ﹤0.01% 1728
2023
Q1 		$155K Sell
90,830
-266,600
-75% -$439K ﹤0.01% 2041
2022
Q4 		$401K Sell
357,430
-63,963
-15% -$123K ﹤0.01% 1958
2022
Q3 		$1.27M Buy
421,393
+83,080
+25% +$381K ﹤0.01% 1641
2022
Q2 		$1.54M Sell
338,313
-336,040
-50% -$2.21M ﹤0.01% 1461
2022
Q1 		$5.64M Buy
674,353
+94,240
+16% +$876K ﹤0.01% 953
2021
Q4 		$8.2M Buy
580,113
+251,720
+77% +$4.65M 0.01% 976
2021
Q3 		$6.53M Buy
328,393
+327,360
+31,690% +$5.29M ﹤0.01% 1126
2021
Q2 		$19K Sell
1,033
-102,300
-99% -$1.76M ﹤0.01% 2730
2021
Q1 		$2.12M Buy
103,333
+1,136
+1% +$30K ﹤0.01% 1709
2020
Q4 		$2.25M Buy
+102,197
New +$2.14M ﹤0.01% 1839

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. 390 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.
  • 390 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.