Sortino Ratio

The Sortino Ratio Indicator is a custom script developed to measure the risk-adjusted performance of an asset. Unlike the Sharpe Ratio, which penalizes both upside and downside volatility equally, the Sortino Ratio specifically differentiates between harmful volatility (downside risk) and overall volatility. This makes it a preferred choice for traders and investors who are particularly concerned with downside risk.

Features:

Calculation Period Input: Users can specify the period over which the Sortino Ratio is calculated, making it adaptable to different time frames and trading strategies.
Daily Returns Calculation: The indicator calculates daily returns using logarithmic returns, which provides a more accurate reflection of percentage changes in price.
Mean Return and Downside Deviation: The script calculates the mean of daily returns and the downside deviation, focusing only on negative returns that fall below the mean.
Annualized Sortino Ratio: The Sortino Ratio is annualized assuming 252 trading days in a year, providing a standardized measure that can be easily compared across different assets and time periods.
Visual Plot: The indicator plots the Sortino Ratio on the chart, with a reference zero line to help users quickly assess the performance relative to the risk-free rate.
How to Use:

Add the Indicator to Your Chart: Copy the script into the Pine Script editor on TradingView and add it to your chart.
Specify the Calculation Period: Adjust the Calculation Period input to match your desired time frame for the Sortino Ratio calculation.
Interpret the Sortino Ratio: A higher Sortino Ratio indicates better risk-adjusted performance, while a ratio below zero suggests that the asset has underperformed relative to its downside risk.