Nvidiaโ€™s sales of chips used for generative AI are booming. The company delivered an impressive boost to its outlook for the next quarter. The street loves it. Shares are up 28% in pre-market trading, adding over $250 billion to the companyโ€™s market value (more than the total market value of its chief competitor AMD). If the gains hold, it would be the largest single-day increase in market capitalization for a company in history. Whether the gains are deserved or not is another question.

Nvidia is the streetโ€™s preferred play in AI today, so there is a lot of hype and premium built into the stock. Tread carefully. Stocks trading at eye-watering multiples operating in cyclical industries that are susceptible to disruption risk have a tendency toward spectacular losses. That is, of course, not a guarantee the same will happen to Nvidia shares, but a reminder that the โ€œsure thingโ€ in stocks may not be a good investment.

Asa Fitch reports in The Wall Street Journal:

Chip giantย Nvidiaย NVDAย -0.49%decrease; red down pointing triangleย is starting toย capitalize on the craze for language-generating artificial intelligence, projecting a more than 64% jump in sales as the company rushes to get more processors in customer hands to satisfy booming interest in the technology.

A new generation of advanced Nvidia chips for AI calculations in data centers is in production, Nvidia CEO Jensen Huang said, and โ€œwe are significantly increasing our supply to meet surging demand for them.โ€

Nvidiaโ€™s shares, which have more than doubled in value this year,ย surged over 25%ย in premarket trading. The rise puts Nvidia, the U.S.โ€™s largest chip-supplier by market value, on course for a record close and for a market capย comfortably above $900 billion.

The company forecast a record $11 billion in sales for the current quarter, far above the $7.2 billion Wall Street was expecting and what would be the highest quarterly total ever for the company.

โ€œThis demand has extended our data center visibility out a few quarters and we have procured substantially higher supply for the second-half of the year,โ€ Chief Financial Officerย Colette Kressย said on an earnings call.