how I sold cotton at an all-time high

The cotton market as a unique example of when derivatives become the underlying

Our big TSLA covered call study

Selling covered calls in TSLA for the past 6 years

Options as LEGOs

How to explain options and put-call parity to absolute beginners

shortcuts to get implied vol from a straddle

more option math tricks

what the vol spread hides

how charts oversimplify

the 2 vectors of volatility scaling

the foundation of portfolio construction

another example of vol goggles

Delta bid or vol bid?

shorter VRP lookbacks

VRP failure mode: a stale denominator

etf fair value

etf NAV and BTC

If they ban short-selling derivatives become the underlying

A reminder in the spirit of being attuned to seemingly far-fetched risks: If short selling were restricted in any way, the value of puts relative to calls on the same strike increases in a put-call parity framework. Another way to say this is being long stock is more valuable since

the inverted term structure trap

vol term structure backwardation

vol speed round

recent action