Picard Medical is trading 9.5% down at $13.52, with no clear after-hours catalyst identified. - It closed the October 13 regular session at $14.94, after two consecutive strong sessions, including a 31.75% gain on October 13. - The decline marks a sharp reversal after those gains. - Coverage noted a securities-lawsuit development and shareholder-law-firm investigations, but did not establish they caused the decline. The broad market was mixed, not a clear explanation.