Calculate the price range , support and resistence for the current day. At the market open this algo will calculate the next price level with no repaint.
Start from a linear regression and using the Fibo parameters I add bands over and under. Because range and volatility are incluse in the algo, the price tends to move between bands with same colors. The middle line (linear regression) is a good signal; after a break happend, the price will move to the last or second last band
When 50DMA and 200DMA cross on PC, algo trades SPY accordingly