Bollinger Bands ek technical analysis tool hai jo price volatility aur potential price levels ko samajhne mein madad karta hai. Yeh ek charting indicator hai jo price ke around ek dynamic range ko represent karta hai.
Har Bollinger Band, generally, three lines se bana hota hai:
- Middle Line (SMA - Simple Moving Average): Yeh band ka center hota hai aur usually 20-period Simple Moving Average (SMA) ke base par calculate hota hai. Yeh price ka average over last 20 periods hota hai.
- Upper Band: Yeh middle line ke upar hoti hai aur usually 20-period SMA ke ek multiple ke basis par calculate hoti hai (commonly, 2 standard deviations upar).
- Lower Band: Yeh middle line ke neeche hoti hai aur woh bhi 20-period SMA ke ek multiple ke basis par calculate hoti hai (commonly, 2 standard deviations neeche).
Bollinger Bands ki main purpose yeh hoti hai ki woh price volatility aur price levels ke variations ko show karein. Jab market volatile hota hai, yeh bands wide ho jaate hain, aur jab market stable hota hai, woh narrow ho jaate hain.
Yeh bands traders ko market mein potential entry aur exit points ke liye indicate karte hain. Jab price upper band se bahar jaata hai, yeh ek overbought condition indicate karta hai, aur jab price lower band se bahar jaata hai, woh oversold condition indicate karta hai.
Bollinger Bands traders ko price ke levels ke saath compare karne mein madad karta hai. Lekin, yeh ek indicator hai, iska matlab yeh nahi ki woh hamesha sahi hoga. Traders ko always doosre indicators aur analysis tools ke saath combine karna chahiye trading decisions lene se pehle.
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