The industry struggles to keep economic indicators moving higher. Drovers' index of economic indicators for May finds four arrows pointing higher, four lower. Ominous signs are found, in the dramatic declines in profit margins for cattle feeders, and heavy supplies of cattle to be marketed this summer. For the first time in several months the arrows for production indicators and production costs turned lower. That's the result of rising grain and hay prices that threaten to drive costs much higher. The arrow for key cattle prices remains pointing higher, but prices at the end of May turned lower, suggesting a summer decline. Cattle feeders will need to remain current in their marketing efforts to prevent a backlog of cattle and a disaster for prices and profit margins. Calf and yearling prices will be dependent on fed cattle and grain prices