Is Taiwan Semiconductor Stock a Buy Now?

Taiwan Semiconductor Manufacturing (NYSE: TSM) is on a roll. On the heels of a three-year slump in chipmaking services, TSMC is facing unprecedented production demand. The artificial intelligence (AI) surge that started two years ago seems to have legs for years, and that's not even the whole story -- modern cars need a ton of processors, and the smartphone market is also coming back from a long downturn.

So, TSMC's stock has doubled in 2024. Its market cap has been hovering around the rare $1 trillion level since October.

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At the same time, TSMC shares are trading at lofty valuation ratios. Is the stock overvalued today, or is TSMC still a great buy at today's high prices?

TSMC looks expensive

The company works in a hardware manufacturing industry. It's a high-tech business, far removed from building homes, tractors, or industrial machinery, but it's still a relatively low-margin business that requires very large capital investments. Chipbuilding facilities don't grow on trees, you know.

TSMC's capital expenses added up to $24.6 billion over the last four quarters. That's more than Apple, Tesla, and Nvidia spent on capital investments -- together.

Companies with costly assets tend to grow fairly slowly, and their stocks often trade as very modest valuation ratios. The 10 largest industrial stocks, for example, currently trade at an average price-to-sales ratio (P/S) of 2.5. TSMC's stock is worth 12.8 times sales. It's the same story with price-to-earnings or price-to-free cash flows -- TSMC's stock is soaring at historically high ratios, and it looks expensive next to companies with similar business models.

TSM PS Ratio data by YCharts

Why you still might want to buy this pricey stock

The company backs up its pricey stock valuation with robust business results.

After a temporary dip amid the recent shortage of semiconductor materials and engineers, TSMC's sales and profits are soaring again. Revenues rose 39% year over year in the recently reported third quarter. Net income jumped 54% higher in the same period, and cash profits really soared. TSMC's free cash flows nearly tripled, rising 172% to $185 billion Taiwanese dollars (approximately $5.7 billion in U.S. dollars).

TSM Revenue (TTM) data by YCharts

So you may be paying a premium for TSMC shares, but it's a world-class business and arguably worth every penny of its high stock price. Growth-oriented valuation metrics look quite reasonable with a forward-looking P/E ratio of 23 times next-year estimates and a price-to-earnings-to-growth ratio (PEG) of 1.1. Both figures suggest that the current stock price is just about right -- neither terribly expensive nor particularly cheap.

TSMC is a solid buy -- but not for every investor

The Taiwanese chipmaking giant is a tempting buy in many ways. TSMC is a good way to invest in the AI boom without picking a winner in the chip-design battles. Remember, nearly all the leading AI accelerator specialists rely on TSMC and others to actually make the physical products. Whoever dominates the hardware market in the long run, TSMC will probably benefit from the entire AI sector's success.

But you need to be comfortable with the stock's growth-based valuation first. Otherwise, I'd recommend a lower-priced chipmaker, or perhaps an undervalued provider of AI software and services instead. TSMC may be a fine growth investment, but it's not every Wall Street stroller's cup of refined silicon.

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Anders Bylund has positions in Nvidia. The Motley Fool has positions in and recommends Apple, Nvidia, Taiwan Semiconductor Manufacturing, and Tesla. The Motley Fool has a disclosure policy.