Momentum strategy
Absolute Trend Timing (200-DMA)
Stay invested while price is above its 200-day moving average; move to cash (or a defensive asset) when it drops below — a simple trend filter that keeps you out of the worst of major bear markets.
Months at a time; checked monthly, held as long as the trend holdsBeginner
Meb Faber — “A Quantitative Approach to Tactical Asset Allocation” (2007; updated 2013)