Natera is trading 19.04% down at $318.53 after-hours, with no verified late-breaking company announcement explaining the drop.
- It closed the October 16 regular session at $393.44.
- During regular trading, the Nasdaq fell 2.00% and the S&P 500 fell 1.11%; broad-market weakness may have added pressure but does not explain the larger after-hours move.
- Recent coverage discussed profit-taking and a proposed director share sale, neither confirmed as an after-hours catalyst.