Why Put-Call Parity Is Such A Deep Insight
The essence of understanding that calls and puts are actually the same
Education
Moontower Blog
Our thinking on options, trading, investing.
"Do you even trade bro?"
When are you an investor vs a trader?
When it's normal to have no idea what your returns are
The lingua franca of asset management regardless of strategy is returns.
Ratio’d
The follow up to Breakpoints
Narrating An Option Trade
Stepping thru my GME roll
Breakpoints
Gridpoints on the vol surface
Riffing on Paywalls, Trading & Options
GME trade and more
What Equity Option Traders Can Learn From Commodity Options
Lessons of markets that rhyme
Scatterplot Gallery
A tour of SPY skew in pictures
When it's normal to have no idea what your returns are
On thinking of performance in pure dollars
“Renting A Straddle”
When event pricing hides extremely cheap trading day volatility
When Car Leases Offer Options For Less Than Zero
Back out the option premium from a car lease
A birdie asked how to model a 1-day option
Thoughts about pricing 0DTEs that respect how volatility unfolds
Using Options Better
A smattering of practical option tips
Mermaids, Fireflies, and the Bid-Ask Spread
On ETF and option market-making
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