**Definition**

RSI is a technical metric that measures momentum and helps indicate if an equity is overbought or oversold.

**Calculation**

To calculate RSI two equations need to be calculated. In order to calculate the RSI you must first solve for relative strength.

**Relative Strength (RS)**= Average of "N" day's closes up/ Average of 'N' day's closes down

**RSI**= 100 - (100/1+RS)

**Why is it important?**

When a stock has an RSI less than 30 it is considered oversold and if it has an RSI greater than 70 it is considered overbought.

When a company is considered **oversold** it means that the a stock is potentially trading lower in price and could experience an increase in stock price.

When a stock is **overbought** means that the stock has experienced a consistent upward price trend without experiencing any significant pullback or dip in price.