Quote from Brighton:
Doobs -
You mentioned Interactive Brokers. Are you using their Risk Navigator? Over the last half-year or so they've added greeks at every level so your portfolio can now be sliced and analyzed by:
- individual option contract, e.g. Dec corn 500P (at this level you also see IV)
- total by contract month, e.g. all Dec corn options
- total by underlying, e.g. all corn options
The various greeks are netted (added) and you can also get Delta dollars and Gamma dollars by underlying and by total portfolio. Note: the latter two metrics probably aren't that useful in a physical commodity portfolio, but I keep the keep those columns visible for my stock option portfolios.
Finally, they have end-of-day and real time VaR reports plus an end of day stress test report. There's also some kind of real time stress test - change in price, change in IV - but I don't use it because the graph and the increments are difficult to read.
I don't mean to sound like an advertisement for IB, only to give credit where due. A year ago the Risk Navigator wasn't very good but now it's an important tool that I use every day. It's still ugly, but we're talking IB design, not Apple.