Shoprite is trading 6.22% down at €18.10, based on the provided price context; no verified company announcement or news clearly explains the October 26 move. - Preliminary Investec partnership talks were already public on October 23, with no certainty of a deal, so they do not establish a reason for the decline. - Johannesburg-listed shares were reported up 0.20% on October 26, offering no evidence of a matching broad-market selloff.