$SPX Fair Value Bands

These are based on Max Anderson's Net Liquidity model.

The formulas for each band are:

(FRED:WALCL-FRED:WTREGEN*1000-FRED:RRPONTSYD*1000)/1000/1.1-1625 + 350

(FRED:WALCL-FRED:WTREGEN*1000-FRED:RRPONTSYD*1000)/1000/1.1-1625 - 150