Options Theory
implying the cost of carry in options
the basis of arbitrage and vol surface modeling
Kris Abdelmessih
Risk and Edge
how overconfidence and confirmation bias create reinforcing loops
The most prominent decision biases in investing
How Markets Work
my read on the market from the option lens
Commentary on the current market
Options Theory
the easiest win in options is for stock traders
how NOT to incinerate money
Options Theory
Learn put/call parity with this free game
The speed game we played as we learned put/call parity
Options and Volatility
Explaining gamma with a simple simulator
An interactive simulator to understand gamma scalping and delta hedging
Options and Volatility
shadow theta
continuation of the discussion on time spreads through the eyes of a vol trader
how I explained vol drag to a 12-year-old
start squaring a number N then seeing what happens as you multiply 2 numbers whose average equals N
Options Theory
how I understand the Black-Scholes formula
an intuitive way to visualize the Black-Scholes formula
How Markets Work
the GFC through a quant's eyes
the subprime crisis from both real-world and quant perspectives
Options and Volatility
calendar spreads through the eyes of a vol trader
simulating a time spread
Options Theory
Betting on PLTR to $40
Vertical spreads in action
Risk and Edge
timing the market
how a trader can stop the urge to time the market
Risk and Edge
Vol drag is misunderstood...until now
Vol drag does NOT change the mean or expected return. It affects the return you are most likely to experience.
How Markets Work
"turds floating to the surface before the flush"
liquid and levered lead while illiquid and indirect lag
Risk and Edge
Why meme stock put spreads look expensive
How vol drag influences vertical spreads