AUMI vs RING: Weighing Two Gold Miners ETFs for Your Portfolio

Key Takeaways

• Both AUMI and RING are passively managed, non-diversified gold miners ETFs, but they track different indexes with very different weighting schemes.
• AUMI tracks the Solactive Global Pure Gold Miners Index with roughly 30 near-equal-weighted names, while RING tracks the MSCI ACWI Select Gold Miners IMI Index with about 45 market-cap-weighted names.
• RING is dominated by large-cap producers such as Newmont and Agnico Eagle, whereas AUMI distributes weight more evenly across mid-cap Canadian and Australian miners.
• AUMI carries a slightly lower expense ratio (0.35%) than RING (0.39%), but RING offers substantially deeper liquidity, a tighter bid/ask spread, and a longer operating history.
• Geographically, AUMI is concentrated in Canada and Australia, while RING layers in meaningful U.S. and broader emerging-market exposure.
• Tickeron AI Verdict: RING is the favored ticker, reflecting its scale, liquidity, and large-cap quality profile.

Why Gold Miners ETFs Are Drawing Attention

Gold miners have re-emerged as a focal point for investors navigating elevated inflation, geopolitical uncertainty, and a stronger bullion market. Within this narrow but high-momentum corner of the materials sector, two ETFs offer competing paths to the same investment goal: Themes Gold Miners ETF (AUMI) and iShares MSCI Global Gold Miners ETF (RING). Although both funds are passive vehicles holding global gold mining equities, they are not direct clones. Their divergent index methodologies, weighting approaches, and liquidity profiles create meaningful differences in sector exposure, relative positioning, and risk. This ETF comparison examines the structural makeup of each fund, the industry backdrop, and how their performance dynamics compare in the current market environment.

Themes Gold Miners ETF (AUMI) at a Glance

Launched in December 2023, AUMI is a passively managed ETF that seeks to track the Solactive Global Pure Gold Miners Index. The index targets the largest companies globally whose revenues are primarily derived from gold mining, holding roughly 30 constituents with a near-equal-weight orientation. As a result, individual positions typically represent only about 4% to 5% of the portfolio, limiting single-name concentration. I also checked this using Tickeron’s AI Screener to see how the holdings compare to peers.

Top holdings include Northern Star Resources, DPM Metals, Endeavour Mining, Alamos Gold, IAMGOLD, Agnico Eagle, AngloGold Ashanti, Kinross Gold, and Gold Fields. The portfolio is essentially 100% basic materials, with country exposure heavily tilted toward Canada (roughly 55% to 60%) and Australia (roughly 25%). The fund carries a net expense ratio of 0.35% and rebalances semi-annually. Its key distinguishing features are its low cost, balanced single-stock weightings, and pronounced mid-cap tilt, which can amplify sensitivity to gold price swings relative to larger, more diversified miners.

iShares MSCI Global Gold Miners ETF (RING) at a Glance

RING, launched in January 2012 and managed by BlackRock, is a passive ETF that tracks the MSCI ACWI Select Gold Miners IMI Index, a market-cap-weighted benchmark of global companies primarily engaged in gold mining. The fund holds roughly 45 securities and is non-diversified by design, with larger producers receiving outsized weight.

Its largest positions reflect this cap-weighted structure: Newmont at roughly 17%, Agnico Eagle near 13%, Barrick Gold around 9%, and Wheaton Precious Metals near 7%, followed by AngloGold Ashanti, Gold Fields, Kinross Gold, Zijin Mining, and Pan American Silver. Sector allocation is effectively 100% basic materials. Geographically, Canada accounts for roughly 44% of assets, with the United States near 18% and smaller allocations to South Africa, Australia, and China. With a net expense ratio of 0.39%, RING offers a large-cap, quality-leaning profile and significantly greater trading liquidity, including a 30-day median bid/ask spread of about 0.17%.

The Industry and Thematic Backdrop

Gold miners sit at the intersection of several powerful macro forces. Persistent inflation, central-bank gold purchases, and geopolitical instability have supported bullion prices across recent market cycles, in turn lifting miner earnings and margins. Rising production costs and labor constraints, however, remain sector-wide risks that can compress profitability even when gold prices advance. Capital flows into precious metals ETFs have strengthened as investors seek hedges against currency debasement and equity volatility. At the same time, miners face regulatory and permitting hurdles, particularly in emerging markets, as well as execution risk tied to mine development and reserve replacement. Both AUMI and RING are directly exposed to these catalysts and headwinds, though their differing geographic and size tilts mean they respond to them at different intensities.

Performance and Positioning Comparison

Over recent weeks and months, both funds have benefited from a strong bullion tape, but their return and volatility profiles have diverged in line with their construction. AUMI's near-equal weighting and mid-cap emphasis have historically produced higher beta and more pronounced drawdowns during gold pullbacks, as smaller producers carry greater operational and balance-sheet leverage. RING, by contrast, has exhibited comparatively steadier relative positioning thanks to its heavier allocation to well-capitalized majors such as Newmont, Agnico Eagle, and Barrick Gold, which tend to show more resilient earnings across commodity cycles. Fund performance has also been shaped by the earnings cycles of these top holdings, shifts in interest-rate expectations, and the strength of the U.S. dollar. For investors seeking pure, high-octane gold-miner exposure, AUMI's balanced mid-cap structure may appeal; for those prioritizing scale, liquidity, and large-cap quality, RING offers a more established route.

Tickeron AI Verdict

Based on observable structural factors, Tickeron's AI would likely favor RING over AUMI in the current environment. The rationale is probabilistic rather than absolute: RING offers materially deeper liquidity, a tighter bid/ask spread, a longer track record, and a market-cap-weighted structure tilted toward the industry's most financially resilient large-cap producers. While AUMI wins on expense ratio (0.35% versus 0.39%) and delivers a more evenly distributed mid-cap profile, its higher volatility and smaller asset base introduce additional structural risk. For an AI-driven assessment prioritizing trend consistency, cost-adjusted efficiency, and diversification across quality names, RING currently presents the more robust risk-adjusted profile.

Enhancing My ETF Research with Tickeron Tools

In my day-to-day analysis, Tickeron’s AI Screener has become a go-to resource for quickly filtering ETFs and stocks by industry, market cap, and technical signals. It helps surface relevant comparisons and pattern insights that would otherwise take longer to compile manually, allowing me to focus on the structural differences that matter most for positioning.

Disclaimer

The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.

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