Stereotaxis is trading at $1.05, up 7.14% in after-hours trading, with no clear company-specific announcement explaining the October 21 move. - The company plans to report third-quarter results on November 10; its latest announcement was not an October 21 earnings release. - Broader markets were positive, with the Nasdaq up 1.07%, but that does not establish why the stock rose. - Trading context shows a sharp after-hours gain following several subdued closes; no after-hours volume or confirmed catalyst was available.