SES is trading 6.9% down at β¬4.41, with no confirmed SES-specific cause identified. - September 28 coverage showed SES at β¬4.47, down β¬0.02, and did not attribute the movement to an event. - The latest company news was a September 24 announcement that construction had begun on a satellite manufacturing facility in Luxembourg. - The facility is expected to open in 2028; the announcement does not explain the September 28 decline.