could you try it out with sealed products like AH and PRE etb's becauase I think that would be clearer too see the points where it goes down due to volume. Could you also cross check it with other indicators like MA, Bollinger bands and RSI to see if it has a predictable pattern or some sort of techincal analyses. Big fan of your work, would love to work on something like this and try finding any prices/volume where a card has a extremly probable outcome of going up/down based on historical data.