Natera Drops 6.5% in One Session, Shedding $4 Billion in Market Cap
As seen on the 24/7 Wall St. homepage on October 6, 2026.
A 6.5% slide to $400.94 strips roughly $4 billion off a $57.8 billion diagnostics name in a single session. The $400 level is the line to watch from here.
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Natera sold off steadily through regular trading hours, closing near $400.94.
Roughly $4 billion was erased from the company's market value in a single session, and the pace of the decline points to sustained selling pressure.
The $400 level now becomes the key number to follow. A stock that closes convincingly below that mark after a move of this size often invites a fresh round of sellers who treat round numbers as reference points.
Keep an eye on how the stock behaves at that threshold, since the $429.01 open now acts as overhead resistance on any recovery attempt.
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Mentioned: NTRA