You're wrong. There have not been PRs timed with all of those volume events and that is false information.
Want proof? I went and pulled every high volume and sp gain event in the last 18 months and compared to PRs.
April 25th, 2014 Spike - Closest PR was April 14.
September 5th 2013 Spike - closest PR was september 9th which started actually caused a massive sell off and a reverse of the increase. Prior to that the closest pr was mid august.
July 19th, 2013 Jump - PRs on june 26th and August 12th
May 10th, 2013 jump - PRs on april 5th and may 28th.
You can clearly see that PRs are NOT causing these events.
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