OPEN 8-K: SEC filing

Opendoor Technologies

Filed with the SEC on Nov 5, 2026 · accession 0001801169-26-000027

OPEN filed a 8-K (current report) with the SEC on Nov 5, 2026. Opendoor Technologies filed an 8-K containing supplemental non-GAAP financial measure definitions and reconciliations (Adjusted Gross Profit, Contribution Profit, Adjusted Net Loss, Adjusted EBITDA) for Q3 2026. The stock moved -9.6% by the first close after the filing.

Summary of the filing

Opendoor Technologies filed an 8-K containing supplemental non-GAAP financial measure definitions and reconciliations (Adjusted Gross Profit, Contribution Profit, Adjusted Net Loss, Adjusted EBITDA) for Q3 2026. The exhibit explains how these metrics are calculated and why management believes they are useful to investors.

For details, click here →How to read a 8-K →

Key details

FilerOpendoor Technologies Inc.

How OPEN stock reacted

Close before

$1.98

Nov 4, 2026

First close after

-9.60%

$1.79

5 trading days

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Since filing

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Frequently asked questions

What did OPEN file with the SEC on Nov 5, 2026?

OPEN filed a 8-K (SEC filing). Opendoor Technologies filed an 8-K containing supplemental non-GAAP financial measure definitions and reconciliations (Adjusted Gross Profit, Contribution Profit, Adjusted Net Loss, Adjusted EBITDA) for Q3 2026. The exhibit explains how these metrics are calculated and why management believes they are useful to investors.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did OPEN stock react to this filing?

OPEN closed at $1.98 before the filing and $1.79 on Nov 5, 2026 (-9.60%).

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