SPY Ninja Oscillator correlates the true strength index exponential moving averages of SPY (green) and VIX (red) together. In doing so we can determine the start of trend shifts via SPY / VIX convergence in addition to crossover, with potential market entries and exits represented by the vertical green and red bars.
MACD and RSI have been scaled proportionally to the oscillator range ( for rsi: (rsi-50)*. 01 , and for macd: macd /3) and when overlaid and used in conjunction with the market vertical entry and exit signals, potential trend prediction becomes much more apparent.