Can you add a little more color on what fundamentals is it overpriced? Have you looked at their QoQ growth (not even YoY) for last few quarters? I would say the stock price is just trying to keep up with the numbers they are putting out.
Their quarterly dividend is only $0.04 per share, total assets at 50B (vs 350B+ for other 1T companies), they cannot easily sell more chips and increasing price can only go so far.
A lot of stocks don't pay dividends at all. They are problematic with tax and theoretically the same benefit can be achieved with buybacks.