If you're trying to max out a $1 or so difference with volume, check out Shaw Communications. Every couple of months the stock drops $2 (from the mid-$20s) for a couple of days, then rebounds back up. Most curious pattern but it's been happening regularly for years now. You'll probably do better on that play than waiting for AC to go up next week when the quarterly is announced. I think any increase in profit etc. has already been priced into the stock and there'll be marginal upward movement, particularly after this week's decline.