Consecutive Days Move Counter Indicator
This indicator belongs broadly to the category of Technical Analysis Indicators, and is used to monitor extreme short-term rallies or drops in a simple way: it counts the number of consecutive days during which the stock moved in the same direction.
So if a stock rallied for three days the indicator will be set at 3, and conversely if a currency fell for six trading days in a row the indicator will be set at -6.
Like most oscillators, this is used mostly for 1d reversion plays: look at the S&P 500 example below, which shows that in the last 5 years SPX never managed to rally more than 5 days before falling. The implication is that, by monitoring these opportunities, one can play a reversion with a degree of confidence.