This blog is a step-by-step guide to help you learn how to use moving average crossover strategy to trade in Nifty Options. You will also explore an learn how you can perform the back-testing of crossover signals using Python programming to get optimum results from your trading strategy.
This blog covers:
- Moving Average Crossover
- How does a Moving Average Crossover strategy work?
- Packages required
- Step-by-step guide
Trading strategies can be broadly categorized into momentum and mean reverting strategies. In momentum strategies the principle is “trend is a friend” and the gist involves buying high and selling higher.
Whereas, in mean reverting strategies, the principle is “whatever goes up has to come down”. This implies buying when the asset is oversold and selling when it is overbought. Moving average crossover belongs to the former category.
There is a plethora of information on moving average crossover strategy with different names such as “Golden Cross” and “Death Cross”.
The strategy involves moving average indicator of different durations.
- An average of the shorter look-back window is called SMA, and
- The one with the longer look-back window is called LMA.
Popularly used SMA-LMA pairs include 20-40, 20-60 and 50-200. An SMA-LMA plot along with the adjusted close price for Nifty looks as follows:-
Trading rules are simple.
- Buy the asset when the SMA crosses above LMA, and
- Sell the asset when LMA crosses below SMA.
Crossover strategy is widely used to trade in the equity segment. In this post, we will explore back-testing of crossover signals to trade Nifty options using Python.
Instead of buying the asset, we shall buy a call option when:
- SMA(today) > LMA(today) and
- SMA(yesterday) < LMA(yesterday).
Similarly sell the call option when:
- SMA(today) < LMA(today) and
- SMA(yesterday) > LMA(yesterday).
Python packages are required to perform this activity.
Following are the packages required:-
Before we begin, here is a list of free resources to help you get prepared:
- Pandas tutorial
- Popular Python Trading Platforms For Algorithmic Trading
- How To Install Python Packages
- Free book on Python Basics
- Free course on Python for Trading
With the following process, you would understand how you can use moving average crossover strategy to trade in Nifty Options.
It consists of a total of 7 steps:
Step 1 - Importing the packages
In the first step, we import the necessary Python packages.
Step 2 - Download Nifty OHLC data
With this step, we proceed towards downloading the Nifty OHLC data using Pandas-Datareader and the corresponding option data using NSEpy.
Step 3 - Create a new dataframe
In this step, we create a new dataframe that contains relevant information from the previous two dataframes.
Step 4 - Define two moving averages
Here, we define two moving averages, 'm' and 'n'. The dataframe 'df' contains new columns namely “SMA” and “LMA” along with the lagged version of these values.
Note: The first nan values are removed in this step.
Step 5 - Define the buying and selling logic
Now, we proceed towards defining the buying and selling logic as explained above.
We shall use “Last” as our trading price. We shall select only those values that have finite “Last” and nonzero “Number of Contracts”.
One lot of nifty option is 75, thus we will multiply the “Trade Price” column by 75.
To reiterate, we apply moving average indicators on the underlying index value and trade on “last” price of the option.
Step 6 - Computing the cumulative returns
After completing the 5th step, in this step, we proceed with computing the cumulative returns of the strategy that we have created.
Step 7 - A graph of the cumulative PnL
Show the graph of cumulative PnL.
The strategy might be tweaked for different look-back periods of SMA-LMA.
Instead of selling the call, a long position input might be considered when a sell signal is generated. Also note that though we are attempting to capture delta of the option, the strategy is solely based on average value of prices.
Let us know if you come up with interesting returns on the back-test.
It is always better to keep learning to grow your trading - learning to create option pricing models, option greeks and various strategies, etc. With our learning track Quantitative Approach in Options Trading, you can learn how to use quantitative techniques in Options Trading within a few hours, so do check it out.
Disclaimer: All investments and trading in the stock market involve risk. Any decisions to place trades in the financial markets, including trading in stock or options or other financial instruments is a personal decision that should only be made after thorough research, including a personal risk and financial assessment and the engagement of professional assistance to the extent you believe necessary. The trading strategies or related information mentioned in this article is for informational purposes only.
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