what does the mcclellan oscillator tell you 
the mcclellan oscillator is an indicator based on market breadth which technical analysts can use in conjunction with other technical tools to determine the overall state of the stock market and assess the strength of its current trend 1since the indicator is based on all the stocks in an exchange it is compared to the price movements of indexes that reflect that exchange or compared to major indexes such as the s p 500 positive and negative values indicate whether more stocks on average are advancing or declining the indicator is positive when the 19 day ema is above the 39 day ema and negative when the 19 day ema is below the 39 day ema 3a positive and rising indicator suggests that stocks on the exchange are being accumulated a negative and falling indicator signals that stocks are being sold typically such action confirms the current trend in the index crossovers from positive to negative or vice versa may signal the trend has changed in the index or exchange being tracked when the indicator makes a large move typically of 100 points or more from negative to positive territory that is called a breadth thrust it means a large number of stocks moved up after a bearish move since the stock market tends to rise over time this a positive signal and may indicate that a bottom in the index is in and prices are heading higher overall 3