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Opendoor Technologies drops 4% as its 3.59 beta amplifies a modest market fade

8/31/2026

A five-year beta of 3.59 is the mechanism behind Monday's Opendoor Technologies (NASDAQ: OPEN) move.

The stock fell 4% to $3.17 in morning trading while the SPDR S&P 500 ETF Trust (NYSEARCA: SPY) declined 0.49% to $765.54, a ratio that tracks Opendoor's historical amplification almost exactly.

No verified company-specific catalyst has surfaced for the session. Beta doing what beta does Beta measures a stock's historical tendency to move more than the broader index in both directions.

At 3.59 on a five-year basis, Opendoor is structured to exaggerate ordinary market softness. The CBOE Volatility Index sits at 14.43, a low reading that argues against broad market fear as the driver.

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