Rubico is trading 6.27% down at $0.61 in pre-market on October 7, following the October 6 ex-date for its 50% stock dividend. - The dividend added 0.50 share per existing share; the prior sessionβs steep drop coincided with trading on a dividend-adjusted basis. - Rubico completed a new tanker acquisition on October 6, but available reports do not connect it to the decline. - The broader market backdrop is mixed and does not clearly explain the move.