TSMC is being called one of the best long-term bets in AI chips, with a foreign analysis arguing the stock could climb sharply from here — good news for anyone already holding it.

• The Motley Fool sees TSMC shares reaching $600 by the end of next year and hitting record territory by 2027.
• TSMC makes the chips other companies design, so it stays neutral in the AI race while supplying rivals like Nvidia and AMD at the same time.
• It controls more than 70% of the world's contract chipmaking revenue, so any big AI customer that wanted to switch would struggle to find the capacity.
• Wall Street expects revenue to grow 34% next year, and the stock trades cheaper than its usual year-end valuation.

Outlook: If AI spending keeps growing, TSMC's earnings should follow, and the argument is that the current price still leaves room to run.