We all 'get' that Sig's an IB h8r. But what broker is more financially solid, other than the bulge-bracket FCMs (JP, GS, BAML et al) who aren't even taking midsized institutional accounts, let alone retail? The only 'comp' to IB I can think of offhand (in terms of being a large, publicly traded firm) is ADM, and I'm not sure what their threshold is for new clients. Bear in mind, MFG and PFB were small, private firms -- they didn't have analysts combing over every number in their quarterly filings...