inverse indicator

I'm not sure exactly what you are trying to do. But if you want to visually look at a chart upside down you can just ratio the symbol with the $ONE symbol.

The ratio of $ONE:SPY will visually invert the chart and any indicators on the chart.

http://stockcharts.com/h-sc/ui?s=SPY&p=D&yr=0&mn=3&dy=0&id=p82694458573


However with respect to a symbol such as !STOVSPX this method will not work well as this symbol is an oscillator which passes thru Zero. The problem is the distortion spikes created on the chart when the values get close to Zero. It's just a math problem as any number divided by zero (or essentially 0) is infinity.

http://stockcharts.com/h-sc/ui?s=!STOVSPX&p=D&yr=0&mn=3&dy=0&id=p54171336574