Is there a better way than:
\mathlarger{\bigcirc}\hspace{-3mm}\mathsmaller{<}
which, though, mathjax does not seem to like
(Ignore the last line which caused confusion. Also, instead of < I meant, by the title, \oleqq. This also caused confusion.)
Best Answer
A little late to the party, but she makes up for it in compactness. Not being a mathjax user, I don't know if it carries over to it or not.