Euroseas saw its shares plummet after it reported a loss of just under $1m in the third quarter, falling well short of analysts' expectations.
The New York-listed containership owner's shares were down $0.45 to hit $1.20 in midday trading, a drop of more than 25%.
That came after the Greek owner reported a $900,000 loss, which was less than the $5.5m loss in the same period of last year.
But the figure represented a $0.10 loss per share, which was $0.11 worse than the consensus.
Chief executive Aristides Pittas attributed the red numbers to declining rates and chartering activity for feeder containerships and said he expects the slowdown to continue into the fourth quarter.
Further, the company's biggest ship, the Akinada Bridge, was idle for 17 days and was fixed to carry empty containers for 40 days for $3,450 a day, roughly a third of what the rest of the fleet was earning.
"Near and medium term market prospects appear positive assuming that a trade tensions do not escalate further," he said.
"We have tried to position Euroseas — the only publicly listed company focused on the feeder sector — to be ready to take advantage of any investment opportunities."
That could come either via single vessel acquisitions or by consolidating other fleets.
The drop comes after posting $1.8m second quarter profits and a May spin off of its dry bulk operation as Eurodry.
