MACD index smma 1. Smma, or MACD for short, is a technical analysis tool recently established in the United States. MACD absorbs the advantages of EMA. It is very effective to use the moving average to judge the timing of buying and selling when the trend is obvious, but if there is a cowhide consolidation market, the signal will be frequent and inaccurate. MACD developed according to the principle of moving average overcomes the defect of frequent false signals of moving average and ensures the greatest success of moving average. /stock/jichu/jichu15.htmrsi is the abbreviation of relativestrengthindex. The calculation formula of RSI is: RSI= 100×N ÷(N-day average closing price increase +N-day average closing price decrease). In the formula, n is generally 6, 9 or 14. The formula shows that the strength index only changes between 0 ~ 100. For investors, the function of RSI indicator is to show the average relationship between price rise and fall in N days through data information, so as to make buying and selling decisions. /255/2005/0529/8 14