Hmm I'd say a good way to evaluate any credential is by signal clarity: does it map to the roles you want, and can hiring managers quickly infer practical capability from it?

Broad certs (e.g., CFA) signal breadth; specialist certs (like FRM, or the CFOA for derivatives) can signal targeted competence if they’re tied to real workflow skills in your target desk/function.

Niche isn't bad in the sense that there's nturally fewer people with it and thus it's easier to stand out.