So I was messing around and accidentally created this chart:
https://bitcointalk.org/index.php?topic=167112.0The top is daily Gox price in log scale so you can see the details. The lower is the running total amount of Gox USD volume divided by the running total amount of day on on day change in USD volume
magnitude (it is always positive).
I'm not sure how to interpret it but the previous run up to 30 is signaled quite strongly, and this indicator has been steady at around 1.8 since (why 1.8???). Maybe this indicator exists already?