Per Yahoo!Finance Statistics, BMY's short interest fell from 20.99 M shares to 20.83 M shares, or .76%, between 9-15-21 and 10-15-21. During the same period, its price also fell from $61.50 to $58.36, or 5.1%.
Still, its short interest on 9-30-21 was at 19.91 M shares. So, in the 2 weeks between 9-30-21 and 10-15-21, its short interest rose from 19.91 M shares to 20.83 M shares, or 4.62%. In the shorter bi-weekly term, BMY short interest has gone up. JMHO.