G*82011-05-17 07:053 楼which do you like? thanks!BNO volum is too small.UGA is better than USO in near future.they are 1X, I like 2X or 3X ETF.【在 c**y 的大作中提到】: 感觉BNO, UGA, DBO的趋势比较明显: USO趋势太乱, 波动太大