That’s not what OP asked.
Take a look at GME. This Friday it’s $5 between .50 and .60. Two years out it’s $80. How can you make a rule of thumb with this much difference?
If you are looking to get more of a linear return as you do with stock or futures then look to use higher delta options (i.e. 75, 80, etc delta)....
Also note that you can adjust per expiry by clicking on “More parameters”.
This must be some inside joke that I’m not in on ;-)
You should take the time to learn exactly why the option increased or decreased in value. Follow an option or an option position (IC, spread,...
If you're worried of a fast movement against your position you may consider a stop order using shares to hedge off your deltas.
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