iPath Dow Jones-UBS Coffee Total Return Sub-Index ETN (NYSEArca: JO)
April gain: 16%
Comment: After a pullback in March, coffee prices surged again in April. Weather observers are predicting that an El Nino weather pattern will cause further damage to crops in Brazil, the world’s largest grower of coffee beans, during the peak of the harvesting season. JO is this year’s top-performing non-leveraged exchange traded product with a gain of 86.3%. [Coffee ETNs Percolate as Storms Threaten Brazil Crops]