Key Takeaways: The Panama Canal’s draft restrictions and decreasing rainfall outlook are driving big moves in dry bulk markets this week. Panamax markets are sharply lower as the economics of moving freight across the Canal are deteriorating rapidly, leading to support in Supramax vessels and Handysize ships.  The situation in the Persian Gulf is little changed with negotiations stalled, the U.S. naval blockade still in place, and a few vessels trickling in and out of the waterway.  Attacks on vessels in the Strait of Hormuz and Bab el Mandeb straits, however, have ...