Hi, my apologizes if this is a simple fix but I'm new to MS so still learning the ropes. At the moment OBV formula is: Cum(If( C is greater than Ref(C,-1), +V, If( C is less than Ref(C,-1), -V, 0) )) I just want to make a slight adjustment to this so that if Close = Previous Period Close, then rather leave cumulative value unchanged as in original OBV formula, I want to instead use the same output value as previous period, whether it is +V or -V. For example if I was looking at a set of candles where the 2nd candle closed higher than the 1st candle then change to cumulative value will be +V. If subsequent 3rd, 4th and 5th candle closing prices remained unchanged, I want change to cumulative value to then be +V, +V, +V. If the 6th candle closed lower than the 5th candle then change to cumulative value will then be -V. If 7th candle closed lower or was equal to 6th candle then value will still be -V, otherwise +V. Thanks!