Quote from NihabaAshi:
It's always discussed along with the highs and lows. Therefore, it must be important to traders especially if your into pivot points, s/r levels, s/r zones, volatility analysis, supply/demand, intermarket analysis et cetera.
However, I wouldn't call "yesterday's close" an indicator. It's more like a "key price area" that a lot of traders watch for different reasons. I watch it.
Mark
Yep, it is not an indicator, better call it a variable. Yesterdays's close is C[1], today's close is C[0].
C[1]/C[0] can be called an indicator. Usually, indicators have no units. However, C[1] - C[0] can be used as an indicator although it has units. It is all a matter of definition.
