<p>If you transfer as a sophomore, your high school grades and SATs will play a big factor. However, transferring to Stanford is a high reach for anyone so you should look to some other schools in California as well (though I don't believe the UCs accept sophomore transfers).</p>
<p>Between their extremely low admit rate and the fact that they apparently prefer to get age/experience diversity in their transfer students that they can't get in Fr admissions, first year transfers are very difficult.</p>
<p>While this doesn't mean it can't happen, do consider some UCs or other schools in CA.</p>