Gold Mining ETF Comparison
GDX, GDXJ and RING

GDX is the big one. $33 billion, 52 stocks, you know the names. Agnico Eagle at the top around 10%, then Newmont, Barrick, Wheaton, AngloGold. Top five combined a little over 35%. It tracks the NYSE Arca Gold Miners Index and it's the most liquid gold mining ETF on the planet by a wide margin. 22.5 million shares a day in average volume. Deep options chain. YieldMax built an entire separate ETF (GDXY) that does nothing except sell call options on GDX to generate weekly income. That's how deep the options liquidity goes. You can't do that with RING or GDXJ, the options markets aren't there.

RING is the iShares product, BlackRock, $2.3 billion, tracks an MSCI index. 54 holdings. Here's something that almost every comparison article gets backwards: RING is more concentrated than GDX, not less. Newmont alone is nearly 16% of RING. Agnico Eagle over 12%. Barrick close to 10%. Three stocks, 38% of the fund. GDX's top three are about 25%. Whoever started the narrative that RING offers better diversification either didn't look at the holdings page or was comparing number of holdings (54 vs 52, basically identical) without checking the weights.

RING does have one genuinely useful feature. Its MSCI index requires constituents to get a significant chunk of revenue specifically from gold mining. GDX is looser about this and lets in more diversified miners and silver producers. So RING gives you a cleaner gold-price bet in theory. The 0.39% expense ratio versus GDX's 0.51% is real too, though whether you actually capture that saving depends on how often you trade, because RING's daily volume is a fraction of GDX's and slippage on a rough day can wipe out a year's worth of fee savings in one transaction.

Both GDX and RING hold streaming companies. Wheaton Precious Metals, Franco-Nevada. About 10% of GDX, 6-7% of RING. These are not miners. They finance mines in exchange for the right to buy output cheap. Completely different business model from everything else in the portfolio. Franco-Nevada lost over 10% in a single session in 2023 because Panama's government shut down a copper mine. Nothing to do with gold. Dragged both ETFs down through its index weight. When one holding operates on fundamentally different economics from the other fifty, it introduces noise that can't be explained by gold price movements and can't really be hedged either.

Now. GDXJ.

This section is going to be longer than everything above combined because the GDXJ situation is the most important thing in gold mining ETF investing that most people holding GDXJ don't know about.

GDXJ stands for Junior Gold Miners. It was supposed to hold small exploration-stage and early development gold companies. When it launched the market cap range for eligible stocks was something like $95 million to $450 million. Genuine small-caps. The kind of companies that own one deposit in Ontario or a couple of exploration licenses in Nevada and haven't poured their first gold bar yet. That's what Junior means.

GDXJ doesn't hold those companies anymore. Or rather, it holds some of them, mixed in with a bunch of mid-cap miners that would have been considered large-cap in any previous gold cycle. The name hasn't changed. The product has changed completely. How this happened is a story about the unintended consequences of too much money flowing into too small a space, and it has direct implications for anyone holding GDXJ today because the same mechanical forces that caused the original problem are still operating.

VanEck, which manages GDXJ, also owns MarketVector Indexes, the subsidiary that compiles the MVIS Global Junior Gold Miners Index that GDXJ tracks. This is going to be important in a minute.

The solution VanEck chose was to expand the eligible market cap range. Make the pool bigger so the fund's ownership percentages come down. First expansion in 2014, ceiling from $448 million to $995 million. Problem came back. Second expansion in 2017, ceiling to $2.9 billion. Suddenly Yamana Gold, Pan American Silver, Eldorado Gold are in a fund called Junior Gold Miners.

The 2017 rebalancing is where this stops being a dry structural story and becomes something that cost real people real money.

GDXJ had to sell over half its position in the smaller stocks to free up cash for the new larger additions. The selling was going to happen on a known schedule, in known stocks, in known approximate quantities. It was public information.

Hedge funds did what hedge funds do. They shorted the stocks GDXJ was going to sell before GDXJ started selling. Free money. You know the ETF is about to dump millions of shares of some $300 million market cap junior miner, you short it the week before, you cover after the forced selling is done.

So you had three waves of selling pressure hitting these small stocks simultaneously. The hedge fund shorts going in first. GDXJ's own forced selling. And then retail stop-loss orders cascading as prices fell through technical levels. The third wave fed on itself because each round of stop-loss triggers created more selling which triggered more stop-losses.

The Globe and Mail talked to people caught in the middle of it. Patrick Donnelly ran First Mining Finance. Getting added to GDXJ was exciting, he said. Getting removed can be devastating for a company. That's not hyperbole. BMO estimated GDXJ would sell over 38 million shares of First Mining during the rebalance. The stock went from around a dollar to 57 cents.

Wesdome Gold Mines is a worse story in some ways. They got added to GDXJ on March 17, 2017. Stock spiked to $4.40, huge volume, 22.94 million shares that day. Great, right? One month later the rebalancing announcement came out and Wesdome was on the removal list. Stock fell to $2.99. In the index for one month. The CEO told the Globe and Mail, be careful what you wish for.

There's a reason I'm spending so much space on this. It isn't ancient history. GDXJ reviews its index quarterly and does a full rebalance every six months. The most recent one was March 13, 2026. Osisko Development and Vox Royalty were added. Osisko's stock dropped 7.5% around the announcement. In 2017 getting added to GDXJ was a catalyst that sent stocks up 20-30% in a day. In 2026 getting added caused the stock to fall. The market has fully absorbed the mechanics. Quantitative funds, institutional desks, arbitrage strategies all have the rebalancing playbook built into their models. The inclusion premium has been completely extracted. The only participants still exposed to the raw mechanics without understanding them are retail holders of GDXJ who bought it because they wanted small-cap gold mining exposure and didn't know the rest.

And about VanEck owning the index compiler. When the fund got too big for its index, VanEck changed the index by directing its subsidiary to expand the eligibility criteria. Perfectly legal. No compliance issue. But consider what happened from the perspective of someone who bought GDXJ in 2015 because they wanted exposure to junior gold miners. The product they bought got redefined underneath them. The manager and the index compiler are the same corporate entity, which means the definition of what the fund holds can be adjusted for operational convenience. Compare this to RING, whose index is compiled by MSCI, a completely independent company. MSCI doesn't care whether RING's AUM doubles or gets cut in half. MSCI has no reason to change methodology to solve a problem that belongs to BlackRock.

Now zoom out from the GDXJ story specifically and look at the broader implication. When GDXJ buys or sells stock because of fund flows or rebalancing, the stocks it's trading are small enough that GDXJ's order flow moves their prices. A junior miner with a $400 million market cap might see GDXJ represent a significant chunk of its daily volume. Good drill results, stock should go up, but GDXJ is facing redemptions that day and selling everything pro-rata, so the stock goes flat or down. Bad management news, stock should go down, but GDXJ just added the company to its index and passive buying overwhelms the negative signal. The ETF stops being a passive mirror of the market and becomes an active force distorting the market it's supposed to reflect.

Every rebalancing creates a crop of artificially cheap stocks on the removal list. If you know how to read a mining company's resource estimate and can do a basic NAV calculation, you can identify which of those removed stocks were sold for purely mechanical reasons and will recover once the forced selling ends. The opportunity isn't inside GDXJ. It's in the stocks GDXJ spits out.

GDX has the same dynamic in a milder form. $33 billion in AUM means GDX's flows barely register in Newmont or Barrick, but the smaller tail-end holdings feel it. RING has the weakest version of this problem because it's the smallest fund holding mostly large stocks. Though RING's extreme concentration in its top three names means that when it does face redemptions, the selling pressure lands disproportionately on Newmont and Agnico Eagle.

There's a phenomenon in this industry that you can set your watch by. Gold price goes up. Miners generate record cash flow. Management decides this is the time to make a transformative acquisition. They overpay because every seller knows the buyer is flush. Gold price eventually comes back down. The acquired asset gets written down. Shareholders eat the loss.

Newmont bought Goldcorp for $10 billion in 2019. The impairments that followed are in the public filings.

In 2025 Newmont produced $7.3 billion of free cash flow. $3.4 billion returned to shareholders. $3.4 billion in debt repaid. Barrick announced it would IPO its North American gold assets. The industry is generating more cash right now than it has in years.

History says what comes next. Whether this time the discipline holds is an open question. But anyone holding GDX should understand that the risk isn't only gold going down. There's a risk that lives in the gap between today's capital allocation decisions and the write-downs that may or may not appear on income statements in 2028 or 2029. GDXJ's smaller holdings don't make giant acquisitions because they can't. Their version of the problem is equity dilution when gold drops and their equity financing dries up, which is more immediate and more brutal but at least more visible.

Geography. Over half the holdings in all three ETFs are domiciled in Canada. Fidelity's gold fund FSAGX has three-quarters of its assets there. TSX lists about a third of the world's mining companies. "Global" is generous for any of these products. GDXJ adds exposure to junior miners operating in West Africa, South America, and parts of Southeast Asia where sovereign risk is a very real variable and impossible to hedge with standard instruments.

Fund flows. GDXJ bled about $1.43 billion in net outflows over the past year. Over three years, roughly $2 billion out. AUM grew anyway, by about $7.4 billion, entirely because gold prices rose and the existing holdings appreciated. No new money is coming into GDXJ. All the AUM growth is mark-to-market. RING took in about $549 million over the past year, some combination of BlackRock's distribution network and institutional passive flows tracking MSCI indices.

Taxes. GDX, biggest fund, most room for in-kind redemptions, lowest capital gains distributions. GDXJ, highest turnover from quarterly reviews and semiannual rebalancings, worst tax efficiency. Matters in taxable accounts, irrelevant in IRAs and 401(k)s.

In a gold bull market's early phase, GDXJ runs hardest because the percentage math on profit growth at smaller miners looks insane when gold moves $500. A 50,000 ounce producer at $1,400 AISC goes from $55 million annual profit to $80 million when gold jumps from $2,500 to $3,000. That's a 45% increase. A major producing 3 million ounces sees its profit go from $3.3 billion to $4.8 billion, also a big number but a similar percentage. Where juniors look different is that the market prices them on future expectations, not current production, so the moves get amplified by speculative repricing on top of the fundamental improvement. As the cycle matures capital rotates to the seniors in GDX. In sideways and declining gold markets RING tends to lose least because of its lower fees and dividend flow from the majors. In a crash, GDX's max drawdown is 80.34% and RING's is 79.47%. There's no hiding.

RING is the better long-term holding for money that isn't going to be actively managed. Lower fee, independent index governance, cleaner gold revenue screen. The reason GDX is 12 times its size has more to do with brand recognition and first-mover advantage than with product quality. GDX remains the only real option for anyone using options strategies on gold miners or anyone who needs to move large positions quickly.

GDXJ is a trading vehicle. The structural issues outlined above don't go away in a bull market. They just get masked by rising prices until they don't.