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Beta Weighting of Portfolio Greeks



Would it be easy to add beta weighting portfolio greeks as feature, perhaps to the portfolio window or the account positions window? The formula isn't proprietary, I think, as there are plenty of articles on the web discussing the concept.

When we have many positions, one surprisingly effective way to consider portfolio exposure is by beta-weighting each greek of each position to some index, like SPX (user-configurable), then aggregating them (sum, or product, or something else, I'm not sure on the math).

I'm not that good of a writer, I thought I'd include this excerpt and link explaining the concept in a different way. Hopefully, it's regarded as still on topic.


"Beta weighting is a means for investors to put all of their positions into one standard unit. It is a way to look at an entire portfolio and understand how it will change with a move in the market. It tells us about the size, diversity and general risk of our positions." --from https://www.tastytrade.com/tt/learn/beta-weight


Here's a link to a feature request thread of a TWS where users have shared there use cases for this feature and eventually voted it to the top of that platforms feature request list: https://www.interactivebrokers.com/en/index.php?f=2493&sid=8926



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