Right now the 'beta' tag refers to the distribution of that name. Does it need clarification or amendment to deal with beta
as used in finance (a measure of risk, I think).
It would do no harm to add a clarification inside the tag wiki, such as:
Tag usage
Do not use this tag for Beta as measurement of how much an asset return can be predicted by a benchmark (finance context). Consider using the tags finance, and/or beta-risk, instead.
This was just a rough suggestion (both wiki amendment and beta-risk tag).
It seems there are no current threads labelled beta outside the beta-distribution concept.
This is why I am suggesting to add the clarification inside the wiki and not inside the excerpt (but no objection using the excerpt, if one prefers).
Doing a research by [finance] beta is:question it returned 4 questions. I believe the newest one is a candidate to place the new tag, if it is the case.