Palantir Technologies experienced a 30% share surge, erasing approximately $3 billion in gains for short-sellers. This dramatic increase followed an earnings update that changed the market sentiment towards short positions, which had previously accumulated around $2.7 billion in mark-to-market profits. Despite this rebound, Palantir's stock is still down about 10% for the year, marking it as the weakest annual performance since 2022. The significant one-day gain is the strongest seen in two years, indicating improved earnings outlook and potential investor interest.

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Palantir Stock Massive Jump Wipes Out $3 Billion in Short-Seller Gains

Nauman Khan

Wed, August 5, 2026 at 8:36 AM EDT1 min read

PLTR \ -1.96%

This article first appeared on GuruFocus.

Palantir Technologies ( NASDAQ:PLTR) shares surged about 30% on Tuesday, wiping out roughly $3 billion in paper gains accumulated by investors betting against the stock, according to data from Bloomberg.

The move followed Palantir's latest earnings update, which prompted a sharp reversal in positioning among short sellers. Before the rally, bearish investors had built about $2.7 billion in mark-to-market gains for 2026.

Palantir remains down roughly 10% for the year despite Tuesday's advance, leaving the stock on track for its weakest annual performance since 2022. The recent rebound also represents its strongest one-day gain in about two years.

The latest move highlights the risks facing investors holding short positions as Palantir's earnings outlook improves.

For the company, the rally may increase investor attention and reduce pressure from bearish positioning, although the stock's broader 2026 performance remains negative.