Thanks, that was my sentiment all along. Unfortunately my client asks for quick wins. With no clear data in the banking sector to show a difference with/without markup, I can't really make a compelling case. One area where there might be a quick win is in marking up all their branches addresses. For some local searches they rank pretty badly (like >10) and don't show up in the first three local results, do you think that could make a difference in google local snippets? If you have some more links for case srudies I would greatly appreciate them!

I'm researching Schema opportunities for a bank, but besides the shema markup available today (like bankorcreditunion) and developments with FIBO, I can find no answer as to the effect of tagging interest rates and such in terms of SERP/CTR performance or visibility. Does anyone have a case study to share or some insight on the matter?