61 lines
2.7 KiB
Python
61 lines
2.7 KiB
Python
from datetime import datetime
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from dotenv import load_dotenv
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from ibkr import Client
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from ibkr.option_type import CALL, PUT
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from os import getenv
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from tastytrade import Tastytrade
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load_dotenv()
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ibkr_host = getenv('IBKR_HOST')
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ibkr_port = getenv('IBKR_PORT')
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ibkr_client = Client(host = ibkr_host, port = ibkr_port)
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tastytrade_account = getenv('TASTYTRADE_ACCOUNT')
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tastytrade_username = getenv('TASTYTRADE_USERNAME')
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tastytrade_password = getenv('TASTYTRADE_PASSWORD')
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tastytrade_client = Tastytrade(tastytrade_username, tastytrade_password)
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tastytrade_client.login()
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underlying_ticker = ibkr_client.get_ticker('SPX', 'CBOE')
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current_price = underlying_ticker.last
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# Filtering strikes based on distance from current price speeds up the request.
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max_strike_distance = 100
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def contract_filter(contract):
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if contract.right == 'C':
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return contract.strike <= (current_price + max_strike_distance) and contract.strike >= current_price
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return contract.strike <= current_price and contract.strike >= (current_price - max_strike_distance)
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# The weekly symbol for SPX (SPXW) is required in order to distinguish from monthly options.
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option_chain = ibkr_client.get_option_chain('SPX', datetime.now(), sub_symbol = 'SPXW', contract_filter = contract_filter)
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print(option_chain)
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target_delta = 0.10
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def closest_strike_by_delta(target_delta, option_chain, option_type):
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options = option_chain[option_chain['Type'] == option_type].copy()
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options['Delta Distance'] = abs(options['Delta'] - (target_delta * (1 if option_type == CALL else -1)))
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return options.loc[options['Delta Distance'].idxmin()]
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# Find the strikes that minimize the distance to the target delta.
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closest_call_strike = closest_strike_by_delta(target_delta, option_chain, CALL)
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closest_put_strike = closest_strike_by_delta(target_delta, option_chain, PUT)
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# Do the same for the long strikes.
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target_long_call_strike = closest_call_strike['Strike'] + 50
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target_long_put_strike = closest_put_strike['Strike'] - 50
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def closest_strike_by_strike(target_strike, option_chain, option_type):
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options = option_chain[option_chain['Type'] == option_type].copy()
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options['Strike Distance'] = abs(options['Strike'] - target_strike)
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return options.loc[options['Strike Distance'].idxmin()]
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closest_long_call_strike = closest_strike_by_strike(target_long_call_strike, option_chain, CALL)
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closest_long_put_strike = closest_strike_by_strike(target_long_put_strike, option_chain, PUT)
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# The requested iron condor.
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print('Short Call Strike:', closest_call_strike['Strike'])
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print('Long Call Strike:', closest_long_call_strike['Strike'])
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print("Short Put Strike:", closest_put_strike['Strike'])
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print('Long Put Strike:', closest_long_put_strike['Strike']) |