Newport Marine Services trades 5.07% lower at IDR 131.00, with no verified September 28 announcement explaining the move. - Its latest company disclosure, a September 16 exchange response, cited lower cash versus trade payables and reduced vessel utilization, without linking either to the decline. - The exchange planned to publish a September 28 short-selling eligible securities list; available reporting does not establish an effect on the company. - Supplied context shows no same-direction index move clearly explaining the decline.