E*Trade Option Premium ROI Calculator

This Python script calculates the Option Premium ROI using the ETRADE API endpoints. It is base on the following 2 sites

• https://developer.etrade.com/home
• https://github.com/jessecooper/pyetrade

Table of Contents

• Requirements
• Setup
• Running the Script

Requirements

In order to run this script you need the following three items:

1. Python 3 - this script is written in Python and requires Python 3. If you do not already have Python 3 installed, download it from

   https://www.python.org/downloads/.

2. An E*TRADE account

3. E*TRADE consumer key and consumer secret. The prod key, not sandbox key.

Setup

1. Edit config.ini with your consumer key and consumer secret; copy these from your application's keys' section

2. Create the virtual environment by running the Python's venv command; see the command syntax below

$ python3 -m venv venv

4. Activate the Python virtual environment

$ source venv/bin/activate

5. Use pip to install dependencies for the script

$ pip3 install -r requirements.txt

Running the Script

The first time running the script, it will open your default web-browser asking you to login to E*Trade and accept the Indicate Terms Agreement to get a text code which you can paste into the script so that you have access to your account to pull option details.

$ python3 get_option_chain.py -t riot -s 30 -c Put -e 10
Please accept agreement and enter text code from browser:

$ python3 get_option_chain.py -t riot -s 30 -c Put -e 10

Current Stock Price: 39.86
Option                    % from strike    ITM     dte   roi / annual roi     breakeven    lastPrice    bid x ask     bid x ask Size     volume    openInterest   delta / (% chance worthless)     theta       IV
-----------------------  ---------------  -----  -----  ------------------  -----------  -----------  -------------  ----------------  --------  --------------  ------------------------------  -------  -------
RIOT Feb 12 '21 $30 Put      -24.74%        n        3   0.83% / 101.39%          29.75         0.28   0.25 / 0.30        5 / 2            4343            1677          -0.07 / (93%)             -0.16  225.99%
RIOT Feb 19 '21 $30 Put      -24.74%        n       10   3.77% / 137.48%          28.87         1.17   1.13 / 1.25        2 / 10           5588            1515          -0.15 / (85%)             -0.15  196.60%
RIOT Feb 26 '21 $30 Put      -24.74%        n       17   6.67% / 143.14%          28.00         2.15   2.00 / 2.37        5 / 7             250              46          -0.19 / (81%)             -0.14  195.49%
RIOT Mar 05 '21 $30 Put      -24.74%        n       24   9.70% / 147.52%          27.09         3.00   2.91 / 3.30        83 / 6            125             292          -0.21 / (79%)             -0.12  197.80%
RIOT Mar 12 '21 $30 Put      -24.74%        n       31   12.17% / 143.25%         26.35         4.01   3.65 / 4.10       13 / 20            109              53          -0.22 / (78%)             -0.11  196.15%
RIOT Mar 19 '21 $30 Put      -24.74%        n       38   15.00% / 144.08%         25.50         4.65   4.50 / 4.65        2 / 2             978             288          -0.22 / (78%)             -0.10  195.66%
RIOT Mar 26 '21 $30 Put      -24.74%        n       45   16.67% / 135.19%         25.00         5.40   5.00 / 6.00        4 / 1             147              29          -0.23 / (77%)             -0.09  199.30%
RIOT Jun 18 '21 $30 Put      -24.74%        n      129   31.67% / 89.60%          20.50         9.50  9.50 / 10.10      660 / 376           180             220          -0.21 / (79%)             -0.05  180.07%
RIOT Sep 17 '21 $30 Put      -24.74%        n      220   42.00% / 69.68%          17.40        13.06  12.60 / 14.20     616 / 592            21              12          -0.18 / (82%)             -0.03  179.34%
RIOT Jan 21 '22 $30 Put      -24.74%        n      346   50.83% / 53.62%          14.75        15.30  15.25 / 15.65      33 / 421           839             630          -0.16 / (84%)             -0.02  164.38%

$ python3 get_option_chain.py -h
usage: get_option_chain.py [-h] [-t TICKER] [-s STRIKE] [-n NUMBER_OF_STRIKE] [-e NUMBER_OF_EXPIRY] [-c CHAIN]

Example: get_option_chain.py -t TSLA -s 800 -c Put

optional arguments:
  -h, --help            show this help message and exit
  -t TICKER, --ticker TICKER
                        Stock Ticker
  -s STRIKE, --strike STRIKE
                        strike price
  -n NUMBER_OF_STRIKE, --number_of_strike NUMBER_OF_STRIKE
                        Number of strike prices to pull for a given option expiry
  -e NUMBER_OF_EXPIRY, --number_of_expiry NUMBER_OF_EXPIRY
                        Number of expiry to pull for a given option
  -c CHAIN, --chain CHAIN
                        Option Type Call or Put