Sebastian Legrand
Founder of OptionsApp · Options trading expert · 20+ years in the markets
About
I am founder of OptionsApp, a software for rule-based and automated trading of options, stocks and ETFs. My focus for over 20 years has been on systematic options trading with credit spread strategies, iron condors and premium-selling setups.
On this page you find all glossary entries, sub-pages and blog articles I have written. My goal: precise specialist content without an advisory tone, useful for real trading practice rather than surface marketing.
Focus areas
- Credit spread strategies (bull put, bear call, iron condor)
- Premium-selling setups and wheel strategy
- Systematic and automated trading
- Risk management and position sizing
- Options pricing theory and greeks mathematics
Profiles and connections
Published content
Selected glossary entries and topic pages:
- Iron Condor · neutral 4-leg options strategy
- Credit Spread · pillar covering bull put and bear call
- Bull Put Spread · bullish credit spread variant
- Bear Call Spread · bearish credit spread variant
- Automated trading · topic pillar on automation
Note: Content on this site is educational, not investment advice. Options trading involves risk.