Invesco Solar ETF's high fees and concentration risk weigh on returns despite recent gains.

The Invesco Solar ETF (TAN) has gained 82.81% over the past year but carries a high expense ratio of 0.67%, which erodes returns over time compared to broader clean energy ETFs like iShares Global Clean Energy ETF (ICLN) with a 0.41% fee. TAN's concentrated portfolio in a few solar companies leads to higher volatility and a 30.6% loss over five years, underperforming broader, cheaper clean energy ETFs. Investors should consider if the premium paid for TAN's focused solar exposure is justified given its weaker long-term performance and higher costs.