Instead of drawing lines and adding popular indicators on charts we spend more time analyzing price action. Here are some of the charts we look at among many others using SPY as an example.
Serial correlation of daily returns
Overnight versus RTH accumulation
Number of unfilled up gaps in rolling 120-day period (Notice the peak before the crash.)
Momentum vs. mean-reversion (Momersion)
Various changes from a day to the next based on the open, high, low and close
and many others….
Charting and backtesting program: Amibroker
Data provider: Norgate Data