Tesla’s fourth-quarter adjusted earnings miss analysts’ estimates but the stock rises on optimism over the electric-vehicle maker’s growth projections, Microsoft’s Azure growth misses estimates, and Meta’s fourth-quarter profit handily tops forecasts.

The Nasdaq Composite has erased early gains as losses for shares of Microsoft Corp. and Nvidia Corp. accelerated, weighing on the broader index. Microsoft shares were down more than 6% earlier, while Nvidia was down nearly 4%,

Looking ahead, the company provided an optimistic outlook for the first quarter (Q1), projecting revenues between €7.5 billion and €8.0 billion, which is above the FactSet Consensus of €7.21 billion. The gross margin for Q1 is expected to be between 52% and 53%.

Thursday's coverage included more tech earnings, focus on Trump's latest on potential tariffs and more analysis around Monday's DeepSeek Dive.

Buffer ETFs, also known as defined-outcome ETFs, use options contracts to limit losses while capping upside potential for the indexes they track. This type of fund has become particularly popular since 2022, when the Federal Reserve hiked interest rates to combat inflation, sending the stock market into a tailspin.

The world’s largest maker of memory chips and smartphones forecasts limited earnings growth in the current quarter as profitability at its core semiconductor business continues to weaken.

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The news that DeepSeek was able to develop generative AI technology for far less money than OpenAI spent on ChatGPT has investors concerned that the hardware build-out that enabled Nvidia's stunning growth in revenue and profit may slow down. But we are at a very early stage in the reaction and analysis of the DeepSeek news.

Tuesday's Forbes Daily covers Chinese AI DeepSeek's impact on stock market, Boeing's earnings woes, Trump's military orders, Super Bowl ticket and party prices, and more.

The tech-heavy Nasdaq Composite index slid 3.5 per cent shortly after the opening bell, while the broader S&P 500 fell about 2 per cent. Nvidia, which surged last year on bets that Big Tech companies would require vast numbers of advanced chips to power their AI models, sold off by 13 per cent.

This week's action in the stock market has made clear that the S&P 500 has become a riskier play - despite its status as the benchmark for U.S. large-cap stocks - because it has become a highly concentrated growth index. But there is an easy way to cut this risk while still holding large-cap growth stocks in a low-cost index fund.