RSV is the abbreviation of English random value, which means immature random value in Chinese. This is a concept in stocks. The RSV index is mainly used to analyze whether the market is overbought or oversold: when the RSV is higher than 80%, the market is overbought and the market is about to peak, so clearance should be considered; When RSV is below 20%, the market is oversold and the market is about to bottom out. At this time, you can consider adding positions.

Formula function

RSV:=(CLOSE-LLV (low, N))/(HHV (high, N)-LLV (low, n)) *100; Take the KD line with a period of 9 days as an example. First, the RSV value of the last 9 days, that is, the immature random value, should be calculated, and the calculation formula is as follows

RSV on the 9th = (closing price on the 9th-lowest price on the 9th) ÷ (highest price on the 9th-lowest price on the 9th) × 100 (calculated value is RSV on the 9th).