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Common Questions
Is this site free?
Yes, completely free. No account, no subscription, no hidden fees.
Is the data real-time?
Option chain data from Yahoo Finance is delayed up to 15 minutes. All calculations use this delayed data.
Can I use this for real trades?
The tool is for educational purposes only. Always verify prices on your brokerage platform before placing any order.
How do I report a bug?
Use the form above with subject "Bug report" — include the ticker, option details, and what went wrong.