
All Correlations Go to One: David Romeo on Double Calendars and Tail Risk
David Romeo had 10 double calendars that looked uncorrelated until one move hit them all. Here is how he now builds a portfolio around tail risk instead.
Read more →Blog
5 posts tagged Portfolio Management.

David Romeo had 10 double calendars that looked uncorrelated until one move hit them all. Here is how he now builds a portfolio around tail risk instead.
Read more →
XSP is too illiquid to backtest well, so we test on SPX with realistic fees and no exits, then size down. Here is a 4-trade 0DTE XSP portfolio built that way.
Read more →
Dan Sheridan builds a four-trade SPX options portfolio, about $2,000 per trade, to show how he spreads entry days, strategies, durations, deltas and theta.
Read more →
Is 0DTE dead? Part 4 combines a power hour condor, a McRib butterfly and a NORB condor into one portfolio backtest, then shows the 28% drawdown uncapped.
Read more →
Dan Sheridan combines a put calendar, a 70/65 butterfly and a put credit spread on SPX into one position and shows how to manage it by its combined Greeks.
Read more →