Tradier’s SPX options data, including greeks like delta and theta, is delayed by 15 minutes.
If you're using Tradier with the Options Auto Trader and have a bot that selects SPX trades based on delta, this delay can result in less accurate strike price selection. The discrepancy is more noticeable in the morning when the market is more volatile and decreases throughout the day as price movements slow, making the delay less impactful.
To ensure more precise strike selection, consider using an alternative method such as Amount OTM, Percentage OTM, Amount ITM, or Strike Offset, as these are based on the real-time SPX price rather than delta, which is subject to the 15-minute delay.
You can learn more here:
https://documentation.tradier.com/brokerage-api/overview/market-data
TERMS OF SERVICE: Please be aware that continued use of the Options Auto Trader is subject to our Terms Of Service. If you have any questions or wish to review these terms, feel free to visit the website.