ION vs. REGB.L

Last updated Jul 1, 2026

ION (Proshares S&P Global Core Battery Metals ETF) and REGB.L (VanEck Rare Earth and Strategic Metals UCITS ETF A) are both exchange-traded funds - ION is a Lithium & Battery Metals fund tracking the S&P Global Core Battery Metals Index - Benchmark TR Net, while REGB.L is a Rare Earth & Strategic Metals fund tracking the EMIX Global Mining Global Gold TR USD. Both are passively managed. Over the past 3 years, ION returned 13.08%/yr vs 1.53%/yr for REGB.L. A 0.73 correlation means they provide meaningful diversification when combined. ION charges 0.58%/yr vs 0.59%/yr for REGB.L.

Performance

ION vs. REGB.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Proshares S&P Global Core Battery Metals ETF (ION) and VanEck Rare Earth and Strategic Metals UCITS ETF A (REGB.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

ION is traded in USD, while REGB.L is traded in GBP. To make them comparable, the REGB.L values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, ION achieves a -1.19% return, which is significantly lower than REGB.L's 14.96% return.

ION

• 1D: 1.88%
• 1M: -15.33%
• YTD: -1.19%
• 6M: -1.36%
• 1Y: 78.17%
• 3Y*: 13.08%
• 5Y*: —
• 10Y*: —

REGB.L

• 1D: 0.00%
• 1M: -16.30%
• YTD: 14.96%
• 6M: 13.70%
• 1Y: 110.58%
• 3Y*: 1.53%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

ION vs. REGB.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
ION Proshares S&P Global Core Battery Metals ETF	-1.19%	108.37%	-20.02%	-14.10%	-8.45%
REGB.L VanEck Rare Earth and Strategic Metals UCITS ETF A	14.96%	88.93%	-35.64%	-18.71%	-15.46%

Correlation

The correlation between ION and REGB.L is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.73
Correlation (All Time) Calculated using the full available price history since Dec 1, 2022	0.73

The correlation between ION and REGB.L has been stable across timeframes, ranging from 0.73 to 0.82 - a consistent structural relationship.

Return for Risk

ION vs. REGB.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

ION

ION Risk / Return Rank: 64
ION Sharpe Ratio Rank: 73
ION Sortino Ratio Rank: 60
ION Omega Ratio Rank: 58
ION Calmar Ratio Rank: 69
ION Martin Ratio Rank: 60

REGB.L

REGB.L Risk / Return Rank: 83
REGB.L Sharpe Ratio Rank: 90
REGB.L Sortino Ratio Rank: 80
REGB.L Omega Ratio Rank: 72
REGB.L Calmar Ratio Rank: 93
REGB.L Martin Ratio Rank: 81

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

ION vs. REGB.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Proshares S&P Global Core Battery Metals ETF (ION) and VanEck Rare Earth and Strategic Metals UCITS ETF A (REGB.L). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	ION	REGB.L	Difference
Sharpe ratio: Return per unit of total volatility	1.99	2.36	-0.37
Sortino ratio: Return per unit of downside risk	2.42	2.83	-0.41
Omega ratio: Gain probability vs. loss probability	1.31	1.34	-0.03
Calmar ratio: Return relative to maximum drawdown	2.93	4.94	-2.01
Martin ratio: Return relative to average drawdown	9.15	11.91	-2.75

ION vs. REGB.L - Sharpe Ratio Comparison

The current ION Sharpe Ratio is 1.99, which is comparable to the REGB.L Sharpe Ratio of 2.36. The chart below compares the historical Sharpe Ratios of ION and REGB.L, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

ION vs. REGB.L - Drawdown Comparison

The maximum ION drawdown since its inception was -52.08%, smaller than the maximum REGB.L drawdown of -75.84%. Use the drawdown chart below to compare losses from any high point for ION and REGB.L.

Drawdown Indicators

	ION	REGB.L	Difference
Max Drawdown Largest peak-to-trough decline	-52.08%	-75.84%	+23.76%
Max Drawdown (1Y) Largest decline over 1 year	-26.85%	-22.52%	-4.33%
Max Drawdown (3Y) Largest decline over 3 years	-46.47%	-61.39%	+14.92%
Current Drawdown Current decline from peak	-25.47%	-38.25%	+12.78%
Average Drawdown Average peak-to-trough decline	-23.60%	-48.37%	+24.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.57%	9.32%	-0.75%

Volatility

ION vs. REGB.L - Volatility Comparison

Proshares S&P Global Core Battery Metals ETF (ION) and VanEck Rare Earth and Strategic Metals UCITS ETF A (REGB.L) have volatilities of 13.79% and 13.79%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ION	REGB.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.79%	13.79%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	32.01%	34.41%	-2.40%
Volatility (1Y) Calculated over the trailing 1-year period	39.57%	47.23%	-7.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.57%	48.30%	-16.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.57%	48.30%	-16.73%

ION vs. REGB.L - Expense Ratio Comparison

ION has a 0.58% expense ratio, which is lower than REGB.L's 0.59% expense ratio.

Dividends

ION vs. REGB.L - Dividend Comparison

ION's dividend yield for the trailing twelve months is around 1.50%, while REGB.L has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022
ION Proshares S&P Global Core Battery Metals ETF	1.50%	1.63%	1.74%	2.23%	0.13%
REGB.L VanEck Rare Earth and Strategic Metals UCITS ETF A	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ION and REGB.L in my portfolio?

ION and REGB.L have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ION or REGB.L?

On fees, ION is cheaper at 0.58% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, ION or REGB.L?

ION is cheaper with a 0.58% expense ratio, compared with 0.59% for REGB.L.

What is the main difference between ION and REGB.L?

ION is categorized as Lithium & Battery Metals, while REGB.L is Rare Earth & Strategic Metals. ION tracks S&P Global Core Battery Metals Index - Benchmark TR Net, while REGB.L tracks EMIX Global Mining Global Gold TR USD. They also come from different issuers: ProShares and VanEck. Their fees differ too: 0.58% for ION and 0.59% for REGB.L.