For many years traders have used moving averages of closing prices to trigger trend changes. Historically crossovers such as the 50 day/200 day methodology are extremely inaccurate and tend to be late in picking tops and bottoms. I find that a more fruitful approach is to compare averages of closing prices versus moving averages of opening prices. Of course this approach also requires a trigger, a stop, a target, and a prophet maximizing methodology. Although it can be used in any timeframe, the larger time frames such as weekly yield are stable results. If you're interested let me know and I can provide more granularity. RBT