On Oct. 1, Mattel rose 18.8% on a takeover-interest report, Accenture 15.78% on earnings and Synopsys 12.78% on investor-day news, with very different levels of support.
United Therapeutics (patent ruling, +12.55%), Rogers (investor-day targets, +10.73%) and FormFactor (buy rating, +9.59%) rose on Sept. 30 for different reasons of different strength.
On Oct 1, KOSDAQ gainers split three ways: Brils on its debut, Winpac on unconfirmed SK Hynix outsourcing reports, and LK Samyang with no known reason.
Three KOSDAQ stocks jumped more than 15%. Checked against filings, the reasons split into earnings, a press-only rebuttal and nothing on file.