Opendoor Technologies Inc.
US ˙ NasdaqGS ˙ US6837121036

SecurityOPEN / Opendoor Technologies Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership1,254 shares
Latest Disclosed Value $ 7,311
Parallel Advisors, LLC ownership in OPEN / Opendoor Technologies Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 1,254 shares of Opendoor Technologies Inc. (US:OPEN) valued at $7,311 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,667 shares of Opendoor Technologies Inc.. This represents a change in shares of -24.78% during the quarter. The current value of the position is $6,107 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (OPEN) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

OPEN / Opendoor Technologies Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-11 2025-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 1,254 -413 -24.78 7 -46.15 0.0001
2025-11-13 2025-09-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 1,667 761 84.00 13 0.0002
2025-07-08 2025-06-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 906 -5,112 -84.95 0 -100.00 0.0000
2025-04-08 2025-03-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 6,018 757 14.39 6 -25.00 0.0001
2025-02-10 2024-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 5,261 -3,945 -42.85 8 -55.56 0.0002
2024-11-13 2024-09-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 9,206 -20,611 -69.12 18 -66.67 0.0004
2024-08-08 2024-06-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 29,817 -2,091 -6.55 55 -43.75 0.0014
2024-05-06 2024-03-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 31,908 4,309 15.61 97 -21.95 0.0026
2024-02-12 2023-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 27,599 -796 -2.80 124 66.22 0.0037
2024-05-20 2023-09-30 13F/A-1 OPENDOOR TECHNOLOGIES INC COM Stock 683712103 28,395 -139 -0.49 75 -35.09 0.0025
2023-11-14 2023-09-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 28,395 -139 75 0.0025
2024-05-20 2023-06-30 13F/A-1 OPENDOOR TECHNOLOGIES INC COM Stock 683712103 28,534 1,383 5.09 115 142.55 0.0037
2023-08-04 2023-06-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 28,534 1,383 115 0.0037
2024-05-20 2023-03-31 13F/A-1 OPENDOOR TECHNOLOGIES INC COM Stock 683712103 27,151 23,852 723.01 48 1,466.67 0.0016
2023-04-25 2023-03-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 27,151 23,852 48 0.0016
2023-02-06 2022-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 3,299 2,116 178.87 4 -25.00 0.0002
2022-11-10 2022-09-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 1,183 1,013 595.88 4 300.00 0.0002
2022-08-01 2022-06-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 170 -40 -19.05 1 -50.00 0.0000
2022-04-28 2022-03-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 210 -61 -22.51 2 -50.00 0.0001
2022-01-20 2021-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 271 88 48.09 4 0.00 0.0001
2021-11-02 2021-09-30 13F/A-1 OPENDOOR TECHNOLOGIES INC COM Stock 683712103 183 7 3.98 4 33.33 0.0002
2021-08-06 2021-06-30 13F OPENDOOR TECHNOLOGIES INC COM Stock 683712103 176 176 3 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F OPENDOOR TECHNOLOGIES INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F OPENDOOR TECHNOLOGIES INC COM Stock Call 176 3 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.