Rivers re timeframe of SPY
I use different time frames for different cycles. The long ones require 30min or daily. The shorter ones might work on 10min. The buy was in the context of a retracement after cyclic lows and had to be short term. If the working cycles are now 3/6/9 month varieties, 30min and daily are required and the expectation is for a move of at least 4-6 weeks up. But time will tell.
Was unsure of the context of the question, and the answer may not be what you wanted. Let me know.