REC is trading 3.07% down at ₹287.05, with the October 30 ex-date for its ₹3.50-per-share interim dividend a likely contributor. - NSE lists October 30 as both the ex-date and record date. - Q2 net profit fell 21.23% year over year to ₹3,477.73 crore, reported October 26; the decline may add pressure. - NSE data showed 12.89 lakh shares traded by 12:21 IST; the provided price context gives the session move.