Williams Companies (WMB) Drops 5.3%, Shedding About $4 Billion in Value

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

WMB Williams Companies
Regular session
$67.83
-5.31% open $71.63
$70$69$68

A 5.3% drop to $67.83 takes roughly $4 billion off an $83 billion midstream name that rarely trades like this. Watch whether buyers defend the open at $71.63 or let the gap stand.

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Williams Companies opened the session at $71.63 and sold off steadily throughout regular trading hours, closing near $67.83. That kind of relentless, gap-down drift is unusual for a midstream infrastructure name of this size and stability.

The roughly $4 billion in market cap erased in a single session puts the scale of the move in perspective. At approximately $83 billion, Williams is not the kind of company that typically sees its shares reprice this sharply without a meaningful catalyst.

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The stock never recovered its footing after the open, sliding without a sustained bounce along the way. That one-directional pressure points to sellers staying in control.

The open at $71.63 is now the level to watch, because the gap left behind becomes technical resistance if buyers cannot reclaim it in subsequent sessions.

Mentioned: WMB