Volatility & Variance: Reading the Risk Fingerprint
ACES.US (ALPS Clean Energy) carries an annualised volatility of 35.5%, categorised as high relative to the long-run US equity benchmark of approximately 15%. ICLN.US (iShares Global Clean Energy ETF) registers at 30.2%, a high reading by the same standard.
ACES.US carries meaningfully higher annualised volatility than ICLN.US — a 5.2% gap that, under normal return distributions, implies a wider range of year-over-year outcomes and a greater likelihood of a 20%-or-more drawdown in any given calendar year.
On the downside, ACES.US's maximum peak-to-trough drawdown of 74.2% represents a catastrophic peak-to-trough collapse over the study period. ICLN.US's worst drawdown of 60.8% was a catastrophic peak-to-trough collapse. ICLN.US demonstrated stronger capital preservation characteristics, absorbing market shocks with less peak-to-trough damage.
When evaluating these two funds for a US-domiciled portfolio, it is important to consider that volatility and drawdown metrics are calculated on trailing historical data. Past standard deviations do not guarantee future behaviour, particularly around US Federal Reserve policy shifts, which have historically been the primary driver of cross-asset correlation breakdowns.