This screen finds stocks whose MACD histogram is above zero. The MACD Histogram(12,26,9) plots the difference between the MACD line and its 9-day signal line, so it crosses zero exactly when the MACD crosses its signal line and shows whether momentum is speeding up or slowing down. Positive bars mean the MACD is above its signal line; growing bars show accelerating upside momentum, shrinking bars an advance that is losing speed.