RSI — Relative Strength Index Samjho

RSI J. Welles Wilder Jr. ne 1978 mein develop kiya tha. Formula: RSI = 100 minus [100 divided by (1 plus RS)]. RS (Relative Strength) = Average Gain divided by Average Loss over the period.

Default period 14 days hai. Pehle 14 days mein positive aur negative returns ko separately average karo. Jo days green the unke returns average karo gains ke liye. Jo red the unke absolute returns average karo losses ke liye. In dono ka ratio RS hai. RS se RSI formula apply karo.

Example: Agar last 14 days mein average gain 1.5 percent aur average loss 0.8 percent hai. RS = 1.5 divided by 0.8 = 1.875. RSI = 100 minus [100 divided by (1 plus 1.875)] = 100 minus 34.8 = 65.2.

Traditional interpretation: RSI 70 se upar matlab stock overbought hai aur correction aa sakta hai. RSI 30 se neeche matlab stock oversold hai aur bounce possible hai. 50 midpoint hai jo neutral zone represent karta hai.

Lekin yeh simple interpretation kaafi frequently wrong hoti hai especially in trending markets. Strong uptrend mein RSI months tak 70 ke upar reh sakta hai. Strong downtrend mein 30 ke neeche bhi. Isliye sirf RSI level dekh ke trade lena nasamjhi hai.

Zyada useful application hai divergence dekhna. Bullish divergence: price naya low banata hai lekin RSI naya low nahi banata. Bearish divergence: price naya high banata hai lekin RSI naya high nahi banata. Yeh potential reversal signals hain jo pure RSI levels se zyada reliable hote hain.

RSI ek momentum indicator hai. Yeh trend follow karta hai, trend predict nahi karta. Sirf RSI pe based trading system historically poor results deta hai because RSI overbought ya oversold signal dene ke baad bhi price continue kar sakta hai same direction mein.

Better usage: RSI ko other indicators ke saath combine karo. RSI plus moving average trend filter: sirf RSI oversold signals pe act karo jab overall trend still bullish ho (price above 200 MA). Yeh significantly false signals reduce karta hai.

Period adjustment bhi consider karo. Short term traders 5 ya 7 day RSI use karte hain jo faster signals deta hai. Position traders 21 ya 28 day RSI use karte hain jo more stable hai. Kaunsa sahi hai yeh depend karta hai aapke holding period pe.