Why would you insist on a homepage, with no secure information or login form whatsoever, have SSL security on it? Neither Quicken nor Mint do this on THEIR home pages.
Financial sites should be secure by default, load times be damned.
It's common practice to setup a subdomain for your secure communications so that you aren't having to send images, javascript and public pages through HTTPS. Load times are part of the reason, but the other is that it takes more resources on the server end too.
I'd love to hear your actual reasoning on this though.