“Bab el-Mandeb remains open”

This trader is expressing a view that Bab el-Mandeb Strait effectively closed by December 31?, Bab el-Mandeb Strait effectively closed by May 31?, Bab el-Mandeb Strait effectively closed by August 31?, and 1 more are correlated outcomes, committing $59,057 to this thesis across 4 prediction markets on Polymarket.