For years, solar stocks were valued mainly on growth expectations and installed capacity. That era is fading. On NASDAQ, a small group of energy companies is now standing out for a very different reason: consistently high margins and real cash flow. As rising interest rates and capital discipline reshape the market, profitability is becoming the ultimate filter separating durable businesses from fragile solar stories.

Energy will rule the world

The energy sector is one of the most cyclical, yet strategically important parts of the global economy. After years of relative investor disinterest, when technology and growth stocks dominated, energy has recently come back into the spotlight of the capital markets. And this return is neither accidental nor short-lived. It is the result of profound structural changes that combine geopolitics, transforming energy systems, technological advances and changing investor behaviour.

Just a few years ago, the energy sector was perceived as outdated,…