a.b. mendez is management investor at frost advisers, thanks for being here. >> good to be here, sue. >> the f.a.n.g. stocks have been on quite a run. >> netflix is a bit of a different animal, but all those companies are creating tremendous value for consumers. pretty clearly they're creating transformations in the economy, in technology, in media, and in many other corners of the economy. so to the extent that they are driving a great deal of value creation, i think a lot of the move in the stocks is justified, although it has been a little bit of a breakneck pace over the last six months. >> if you are a long term investor, should you trim some of those positions and maybe wait for a pullback before you get back in or do you let it ride? >> it's a great question. we kind of grapple with these issues on a day-to-day basis. but we are long term investors as frost. we've been involved with all these companies except for netflix. netflix we added in fall of last year and it's worked well thus far.