Bloom Energy Joins S&P 500 After Stock Surge

Bloom Energy was up more than 7% in premarket trading after Standard & Poor’s said the company will join the S&P 500 on Sept. 21. The stock has already gained nearly 190% this year, making it one of the standout performers in the energy complex and the first energy-sector addition to the index since 2022, according to the market analysis cited.

Investors have been bidding up companies that can supply reliable onsite power as AI clusters strain grids and push data-center operators to secure capacity. Bloom’s latest quarter added to that story: revenue topped $1.07 billion, more than double a year earlier, while non-GAAP gross margin came in at 34.3%. Management raised full-year revenue guidance to $3.9 billion-$4.2 billion.

The market is also watching the stock’s technical setup. Bloomberg’s price data show Bloom closed at $269.28 on Sept. 9 after hitting $277.22 on Sept. 8, with the 50-day moving average at $226.87 and the 200-day at $192.92. RSI readings near 78 point to an overbought short-term condition, but the broader trend remains strong after the stock’s sharp run above both major moving averages.

For investors, the key question is whether the S&P 500 flow can extend a rally already powered by AI infrastructure demand, or whether the stock needs to consolidate after its near-triple this year. The next test is whether buyers can keep the shares above the recent $260-$280 area as passive index demand meets elevated expectations for growth.