Palantir (PLTR) Drops 7% in One Session, Erasing ~$25 Billion

As seen on the 24/7 Wall St. homepage on November 5, 2026.

PLTR Palantir
Regular session
$154.79
-7.14% open $166.69
$162$158$153

A 7.14% drop to $154.80 from a $166.69 open takes roughly $25 billion off a $356 billion name in a single session. Moves this size are routine for one of the market's most expensive AI software stocks, which is exactly why the $166.69 level matters on any bounce.

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Palantir opened at $166.69 and never reclaimed that level, settling near $154.80 by late afternoon.

A single 7% session erases roughly $25 billion of Palantir's market value, the cost of holding a stock priced at this kind of premium.

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The $166.69 open is now the near-term ceiling buyers must reclaim to signal the session's damage has been repaired, a high bar for one of the market's most expensive AI software names.

Palantir's premium multiple amplifies broad market sentiment in both directions, so investors waiting for a pullback now have a name roughly 7% cheaper than it was at the open.

Mentioned: PLTR