S&P 500 appears to be topping out on OBV (On balance volume)

Observed here is a topping out period on the SPY with the volume forming a descending triangle, a typically bearish consolidation period. Due to the extended bull market and attempted top picking, this will be purchased on SDS and using dollar cost averaging until September 2015 with a 10 cent trailing stop. September 2015 has been chosen due to my own experiences with the economic 7 year cycle and the foreshadowing effect of the oil price crash proceeding an economic retracement.