Bloom Energy joins the S&P 500 on Sept. 21, up 206% in 2026

S&P Dow Jones Indices is adding Bloom Energy Corporation (NYSE: BE) to the S&P 500 effective before the opening bell on Monday, 21 September 2026, under a change the index provider announced on 4 September. The San Jose fuel-cell maker enters the benchmark as an Industrials constituent and takes the place of Molson Coors Beverage Co. (TAP), which moves down to the S&P SmallCap 600.

Bloom Energy is not the only new name. In the same quarterly rebalance, Everpure (P) joins in Information Technology and Illumina (ILMN) in Health Care, while The Trade Desk (TTD) and Builders FirstSource (BLDR) leave the S&P 500 alongside Molson Coors. All three departing companies drop straight to the S&P SmallCap 600, skipping the MidCap 400 entirely.

The promotion follows the strongest quarter in the company's history. In results filed with the U.S. Securities and Exchange Commission on 28 July, Bloom reported second-quarter revenue of $1.065 billion, its first quarter above $1 billion, up 165.5% from $401.2 million a year earlier. Product revenue, which covers its solid oxide fuel cells, rose 215.4% to $935.4 million, and operating income of $182.2 million reversed a $3.5 million operating loss. The company raised full-year 2026 revenue guidance to $3.9 billion-$4.2 billion, about 100% growth at the midpoint.

Founder, chairman and chief executive KR Sridhar tied that demand to the data-centre buildout. \"All the major US hyperscalers and over a dozen US neoclouds, AI labs, and colocation data center operators have validated and approved our power solutions for their AI factories,\" he said in the release, adding that \"Bloom is now a standard for AI onsite power.\" Chief financial officer Simon Edwards described the quarter as \"the strongest in Bloom's history, with profitable growth and positive operating cash flow.\"

Index membership matters beyond prestige. Funds that track the S&P 500 have to hold every constituent, so an addition pulls in mechanical buying and a removal forces selling, which is why trading around a rebalance is unusually heavy. Nasdaq's historical price data shows 73.5 million BE shares changed hands on Friday 18 September, the last full session before the change takes effect, against 14.2 million the day before. The stock closed that Friday at $265.63, down 5.4% from $280.76 on Thursday.

Measured across the year, the move has been dramatic: Bloom ended 2025 at $86.89, so the 18 September close leaves it roughly 206% higher in 2026 - slightly more than a tripling. It still sits about 23% below its 2026 peak close of $345.85 on 22 June. The open question is conversion: Bloom's own outlook implies non-GAAP earnings of $2.55-$2.85 per share this year, and third-quarter results will be the next test of whether the order book behind that guidance arrives on schedule.

This article is for information purposes only and is not investment advice.