The construction
The VIX is computed from the prices of out-of-the-money S&P 500 options across a strip expiring in 30 days. It is a model-free, weighted average of implied volatilities.
What it is not
It is not a directional indicator. The VIX can rise in both selloffs and melt-ups. It is also not a measure of realized fear — it is a forward-looking, risk-neutral expectation.
How to use it
Use VIX levels as a regime filter for volatility-selling strategies (high VIX → richer premium → harvest) and as a position-level risk overlay (spike > 30 → trim gross).
Not financial advice
This lesson is educational material, not personalized advice. Examples and case studies are illustrative. Trading carries real risk of loss — never invest money you cannot afford to lose, and consult a licensed professional for guidance specific to your situation.