gee, thanks for the answer, i was new to crude trading, just one month ago. crude is supposed to be tradable 24hr/day. so the activity after that time is of no significance. that is why most time I switched to YM, I can catch some late afternoon profit-taking or short covering wave in YM.
Quote from Susannah:
Trading floor closes at 2:30 central time - you're essentially trading AH after that.
