Global fx trading activity slowed in 2010 with the exception of a surging yen in Japan and a 68% increase in so-called Tomorrow-Next and other short-dated roll-over trades, according to Greenwich Associates. Overall activity fell by roughly 13%, while that in the U.S. declined 22% and that in continental Europe, the U.K. and Asia ex-Japan and Australia/New Zealand, fell 20%, 8% and 12%, respectively. Deutsche Bank and Barclays led the global fx market in market share, Greenwich said.