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The biggest S&P 500 Index winners and losers since April 4

After eking out another gain in yesterday’s session, US stocks have now climbed nearly 20% since bottoming on April 4, sending the S&P 500 Index within spitting distance of its all-time high close of 6,144 in February.

Powering that rally, literally and figuratively, has been the AI trade. Sherwood News’ Luke Kawa pointed out last week that chip stocks like Broadcom — as well as the “picks and shovels” names enabling the AI capex orgy — are at or near record highs. But which other companies have been the biggest winners and losers in this latest rally?

Outside of tech, Constellation Energy, which signed a major 20-year deal with Meta to supply it with nuclear power last week, is a top riser with a 70% gain since April 4, while another top stock, NRG Energy, may owe its performance to an accounting trick. As of today, the biggest gainer is Arizona-based semiconductor company Microchip Technology, with a 93% gain.

Meanwhile, of the 73 decliners in the index, there is a certified biggest loser: UnitedHealth, which, with a 42% drop, is far lower than the next in line, Enphase Energy, which has suffered a 21% decline since April 4.

Outside of tech, Constellation Energy, which signed a major 20-year deal with Meta to supply it with nuclear power last week, is a top riser with a 70% gain since April 4, while another top stock, NRG Energy, may owe its performance to an accounting trick. As of today, the biggest gainer is Arizona-based semiconductor company Microchip Technology, with a 93% gain.

Meanwhile, of the 73 decliners in the index, there is a certified biggest loser: UnitedHealth, which, with a 42% drop, is far lower than the next in line, Enphase Energy, which has suffered a 21% decline since April 4.

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SpaceX gets a wave of bullish ratings from Wall Street analysts

SpaceX received more than a dozen positive analyst calls on Tuesday — including from major Wall Street banks — as they initiate coverage on Elon Musk’s space and AI company.

SpaceX went public on June 12 at a $2.2 trillion valuation, the largest debut in history. While the company hasn’t yet posted a profit, it seems to have convinced Wall Street that it will get there and grow its valuation on the way.

Of the at least 17 analysts that gave a rating on Tuesday, all but one gave it a “buy” or “outperform” rating. MoffettNathanson was "neutral."

The ratings come as SpaceX joined the Nasdaq 100 index, a benchmark tech-heavy basket of companies that underpins millions of portfolios. The inclusion adds built-in demand for the stock from index funds and ETFs.

Still, SpaceX fell more than 5% on Tuesday amid a broader sell-off, and is currently effectively flat from its opening price of $150 a share.

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