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Mentor
In my case reducing XLK & QQQ which had gotten a little heavy and increasing my bears on CHTR & AAPL.
Interesting.
I use more of a trend following approach and have been making similar adjustments, but with energy and industrials taking more room in the portfolio and shedding some tech exposure.
I actually don’t trade options that much and short vol even less. My position size limits are more volatility based.
Damn, whenever I think I know about options trading, I read posts like this and realize how ignorant I am 😪
Hahaha ofc! That’s why I am in ‘em this bowl, to learn from others :)
Mentor
Is everyone using apps that automatically does beta weighting? I know TOS, Interactive Broker, and I would guess TastyTrade all do it.
I got a couple DMs implying this is new to them. Is anyone interested in a deeper dive?
I’m new to this topic and would be interested to get a deeper view
Mentor
For EYP and the DMers, Beta for a ticker is a measure of how it performs against its index. A beta of 1 against S&P 500 means it moves the same percentage as the S&P500 over a period of time. A 0.8 means it rises and falls at 80% of the S&P500, while a beta of 1.2 means it is more volatile and moves 20% more.
Beta weighting your portfolio gives you a measure of how much your whole portfolio moves against the S&P. This is hard to do by hand when you have options as you have deltas that aren't nicely equivalent to the stock. You also have skew and negatives if you have puts or short calls.
Good brokerage tools have a simple selection to give the number for you. This provides a way to predict how your portfolio will move based on the move of your chosen index.
Most Americans are heavily weighted to US stocks, so SPY is an easy index to use. If you are a global investor, ACWI or URTH works better.
It is by no means perfect as it takes that day's IV, not the real-time IV, but this isn't meant as a real-time trading tool, but rather a check on your sentiment against your holdings.