ConocoPhillips Drops 5% in a Single Session, Erasing $8 Billion

As seen on the 24/7 Wall St. homepage on November 4, 2026.

COP ConocoPhillips
Regular session
$135.07
-4.99% open $142.17
$141$138$134

A 4.99% drop to $135.07 strips roughly $8 billion from a $162 billion major, and moves that size are rare for a name this large. Whether it holds this level into the close is the thing to watch.

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ConocoPhillips slid nearly 5% in one session, stripping roughly $8 billion from its market value. A move that size is rare for a major of this scale.

Price drifted lower through the morning and accelerated through the afternoon, with no bounce that stuck, a sign sellers held control from open to close.

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For a large-cap energy name, a nearly 5% single-session loss draws attention beyond just the day traders. Institutional holders who tolerate ordinary volatility tend to reassess positions when a stock of this stature moves this far this fast, and that reassessment can extend the pressure into subsequent sessions.

The level to focus on is whether $135 holds as the session closes out, since a failure there marks a meaningful step down from the $142.17 open and sets the tone for the next trading day.

Mentioned: COP