Which brings us to the report's punchline: how to determine if the bear market is about to turn from sotto voce to fortissimo? Here is BofA's checklist of 6 triggers which would launch the next crash:
No SPX new highs (BB Indicator @ 2.5 & record buybacks)
No China stock bounce (RRR cuts, weak CNY & credit easing
No non-US bank catch up (BoJ botches a monetary tightening, yen appreciates sharply)
No capex boom (peak profits)
Flatter US yield curve (peak GDP, peak dollar, peak yields)
Oil tanks (OPEC, Iran)
And as always, keep your eyes on US bank stocks: they are always the best tell.