Technical Signals · Lesson 2.4
EMA crossovers
A crossover signal fires only on the day one indicator crosses another, rather than every day the comparison is true. It captures the transition itself.
The crossover operators
FactorSage exposes CROSSES_ABOVE and CROSSES_BELOW operators in the strategy builder. They evaluate true only on the bar where the crossover happens, not on every subsequent bar.
Two practical examples
EMA_21 CROSSES_ABOVE EMA_50— a fast-line-over-slow-line bullish trigger.PRICE CROSSES_BELOW DAILY_EMA_100— a momentum break used as an exit.
Related
- EMA crossover with valuationStrategy Examples
- SMA vs EMATechnical Signals