The goal of this bottom trading strategy is to avoid risk and therefore the trade should only be entered if the price stays above $315 on for 24 hours. Reason to buy here: The last low of $315.23 could be a potential "ugly bottom" (a little bit lower than the last bottom at $316.61). And the price is currently at a important of 76.4% (if you connect the 2014 multiple-month low of $275 with the last weeks high of $453.92).
Current price is $323 as of
Wednesday, December 17, 2014, week 51, 23:15 UTC
Regarding the volume. First this potential bottom needs to be tested by the risk takers. Then comes the volume from the people who don't trust this, yet and play it safe.