$7 billion spent. Zero found. And the world’s largest gold miner is replacing less than a third of what it mines. What happens when the supply side runs out while the demand side is still accelerating?
The Headline Everyone Misread
In August 2025, S&P Global released its annual gold discovery analysis. The headline statistic looked encouraging: three new major gold discoveries were added to the global inventory in 2024, bringing the total to 353 deposits containing nearly 3 billion ounces.
Three discoveries. That sounds like progress.
It isn’t.
Almost all of the deposits that crossed S&P’s 2-million-ounce threshold in 2024 were discovered decades ago. They didn’t suddenly appear. They were old projects that had been drilled enough, over enough years, to finally cross an administrative line. S&P’s own report made this clear: the additions represent classification upgrades, not geological breakthroughs.
The actual discovery of genuinely new, previously unknown gold deposits? Still zero for any deposit of 2 million ounces or more. That drought now stretches through 2023 and 2024 — the first time in the modern record that two consecutive years have produced no tier-1 gold discovery anywhere on the planet.
And then 2025 happened.
The Paradox: More Money, Fewer Finds
In April 2026, S&P Global released its World Exploration Trends 2026 report. The gold number looked healthy: exploration budgets surged 11% to US$6.2 billion, capturing a full 50% of all global nonferrous exploration spending.
Gold is getting more exploration money than any other metal. By a wide margin.
But look at where that money is going.
Near-mine drilling — the low-risk work of expanding known deposits a few hundred meters in each direction — hit a record high of 45% of total exploration spending. Companies are drilling the edges of mines they already own. They’re adding years to existing operations. This is maintenance, not exploration.
Meanwhile, grassroots exploration — the high-risk, early-stage work that actually finds new deposits — collapsed to an all-time low. Down from roughly 50% of total budgets in the mid-1990s to barely one-fifth today.
The industry is spending more on gold exploration than ever — and allocating less to actually finding gold than at any point in history.
The Pipeline Activity Index, S&P’s measure of new drilling starts and project milestones, fell to 63 in Q3 2024 — its lowest reading since 2016. At the same time, the Exploration Price Index — which tracks the commodity prices that should incentivize exploration — surged to a record 203.
Gold near $5,000. Margins above $3,000. Exploration activity at decade lows.
The signal is unmistakable: companies have given up on finding new deposits. They’ve looked at the declining success rates, the rising costs, the years of failure — and they’ve decided to buy instead of drill.
Why Discoveries Stopped
It’s not for lack of trying. It’s geology.
The easy deposits have been found. The ones at surface, in accessible locations, with obvious geological signatures — those were discovered in the 1970s, 1980s, and 1990s. What remains is deeper, more remote, under more cover, and harder to detect.
MinEx Consulting, the leading independent tracker of global discovery economics, has quantified the decline:
- The cost to discover an ounce of gold has risen from US$15 in the 1980s to over US$60 in the 2010s. Recent estimates put the current figure closer to $70/oz.
- The cost per discovery — the total spend required to find a single deposit — has risen from US$41 million in the 1980s to US$142 million in the last measured decade.
- The meters of drilling required per discovery rose from 336,000 in the 1990s to 551,000 in the 2010s.
Each new deposit takes more money, more drilling, and more time to find. And the deposits being found are smaller. S&P data shows the average size of gold discoveries in the 2020–2024 period was 4.4 million ounces, down from 7.7 million ounces in the decade before. Not a single discovery in the past ten years ranks among the thirty largest in history.
The supergiant era — deposits of 50 million ounces or more — is over. In the 1970s through 1990s, at least one was found per decade. Since 2000, zero.
The Exception That Proves the Rule
In early 2025, China announced what was described as the world’s largest gold deposit at the Wangu gold field in Hunan province — reportedly over 1,000 tonnes (roughly 32 million ounces) at an average grade of 8 grams per tonne.
That sounds like a discovery that breaks the drought.
It doesn’t — and understanding why illustrates the problem.
The Wangu deposit sits at depths of 2,000 to 3,000 meters. Development costs at that depth carry a 15–20% premium for every 500 meters beyond 2,000. Chinese mining officials estimate a 5–10 year timeline to full production. The deposit is located in central China, not accessible to Western mining companies, not investable by the Canadian or Australian capital markets that fund junior gold exploration, and not subject to the Tier-1 regulatory standards (NI 43-101, JORC) that underpin transparent resource reporting.
For a North American acquirer looking at reserve replacement — which is the demand side of the Gold Gap — the Wangu field might as well be on the moon. It doesn’t change the supply equation in the jurisdictions where M&A is happening.
The structural problem remains: in the countries and regulatory environments where gold companies operate and are acquired — Canada, the United States, Australia — no one is finding anything.
What This Means for the Gold Gap
The discovery collapse is not just a geological curiosity. It is the demand driver behind the Gold Gap.
Here is the chain of logic:
1. Producers are depleting reserves faster than they can replace them. The top 20 gold producers saw their combined reserves decline 26% in a five-year span (McKinsey, 2012–2017). Newmont — the world’s largest gold miner — reported 118.2 million ounces of reserves at the end of 2025, down from 134.1 million the prior year. The reconciliation: divestments (−8.6 Moz), mining depletion (−7.2 Moz), negative revisions primarily at Yanacocha Sulfides (−5.6 Moz), cost escalation (−3.1 Moz), price revisions (+6.6 Moz), and reserve additions from resource-to-reserve conversion primarily at Brucejack and Lihir (+2.0 Moz). For every ounce mined, 0.28 was replaced, and those replacements came from reclassifying ounces already on the books, not from new discoveries.
2. Exploration cannot close the gap. The timeline from discovery to first gold production averages 16 years (S&P Global). Many complex projects take 20 or more. Even if a genuine tier-1 deposit were discovered tomorrow, it would not produce gold until the 2040s. The industry cannot drill its way out of a depletion problem that is already here.
3. Acquisition is the only short-term solution. In 2025, 32 gold M&A transactions were completed, involving 162.1 million ounces of resources and reserves. Majors accounted for 34% of buyers. Despite a 26% decline in deal count, total deal value grew 10%. Acquirers are paying more, not less, because the supply of quality targets is shrinking.
4. The target universe is small and getting smaller. Every acquisition removes one more company from the pool. Every failed exploration program means one fewer prospect becomes a deposit. The Gold Gap measures what acquirers pay for the ounces that remain — and right now, they’re paying $93/oz (Core median) for assets that generate $3,300/oz in operating margin at $5,000 gold.
That’s 87.2% compression.
A note on margin: gross vs net
The $3,300/oz used above is gross operating margin — gold price minus AISC. AISC is the World Gold Council standard and already includes mine-site royalties and taxes. But the gross-to-net translation still has real frictions worth naming:
- AISC isn’t constant. It rises with input inflation (energy, labor, consumables) and with gold itself. Global average AISC reached $1,456/oz in Q3 2024, the highest in the WGC data series back to 2010. The $1,700/oz AISC used here is intentionally conservative for screening.
- Endogenous grade response. When margins expand, producers lower cut-off grades and process more low-grade ore. More gold gets produced — at a higher cost per ounce.
- Below-AISC frictions. IBA / First Nations participation, sustaining capex variability, and corporate taxes further reduce free cash flow to equity.
S&P Global’s 2026 mining cost outlook projects industry-wide gold margins near $2,800/oz — meaningful but below a static $3,300. Even at that lower number, the compression math holds: the implied benchmark drops from $729 to roughly $619/oz, and the $93/oz Core median still represents 85% compression.
The Other Side of the Coin: The Depletion Clock
The discovery collapse explains why new supply isn’t coming. But supply tightening is only half of the Gold Gap pressure. The other half is accelerating demand — and the demand is coming from producers who are running down their reserve base faster than the drill bit can replace it.
Here is the math for the world’s largest gold miner.
Newmont (2025 Reserves Release, February 19, 2026):
- Reserves at year-end 2025: 118.2 Moz
- Reserves at year-end 2024: 134.1 Moz
- Change: −15.9 Moz year-over-year
The reconciliation:
- Divestments: −8.6 Moz
- Mining depletion: −7.2 Moz
- Reserve additions (resource-to-reserve conversion at Brucejack and Lihir): +2.0 Moz
- Other revisions (price, cost, Yanacocha reclassification): net +0.9 Moz
Replacement ratio: 0.28× (2.0 ÷ 7.2)
For every ounce Newmont mined in 2025, 0.28 came back onto the books — and those came from reclassifying ounces the company already had as resources, not from finding new ones. The world’s largest gold miner didn’t replace what it mined; it re-labeled what it already owned.
Newmont isn’t an outlier. McKinsey tracked the top 20 gold producers over a five-year span (2012–2017) and found combined reserves declined 26%. For the better part of a decade, the major producer group has been consuming reserves faster than it replaces them.
A producer with a 0.28× replacement ratio has a countdown running. Every quarter, the reserve base shrinks. At some point, the board has two options: acquire ounces or watch the company shrink.
Exploration cannot solve this in time. The average timeline from discovery to production is 16 years. Even if a tier-1 deposit were found tomorrow, it wouldn’t produce gold until the 2040s. The drill bit is too slow.
That leaves acquisition. And when multiple producers are on the same clock — competing for the same shrinking pool of quality targets — deal prices move higher.
What to watch: Annual reserve reports (published each February/March). The replacement ratio for any producer is a simple calculation: reserve additions (conversion + exploration) ÷ ounces mined. Below 1.0× means the clock is ticking. Below 0.5× means it’s urgent. And always check whether the “additions” came from new discovery or from reclassifying existing resources — it’s the same number on the page but a very different story underneath.
The discovery collapse doesn’t just explain the Gold Gap. Combined with the depletion clock, it makes the compression unsustainable. When you can’t find ounces, you can’t wait 16 years to develop them, and your reserves are actively shrinking — you buy. And when the available inventory is this thin, buying pressure pushes prices higher.
Two forces. One direction. The Gold Gap is the scoreboard. The discovery collapse is why the supply side is tightening. The depletion clock is why the demand side is accelerating.
Both compress the gap from above.
How to Watch These Signals
You don’t need a Bloomberg terminal or an S&P Global subscription to track the supply side of this story. Here’s what to watch:
The annual S&P World Exploration Trends report
Published each March/April. The number to track is not total exploration spending — that’s a misleading headline. Track the grassroots share of total budgets. As long as it stays below 25%, the pipeline remains structurally starved.
Grassroots share in 2025: ~21% — a new all-time low (S&P WET 2026). All-time high was ~50% in the mid-1990s.
Major new gold discoveries
S&P maintains a discovery database. When a genuinely new deposit (not a reclassification of an old one) crosses 2 million ounces, it will be industry news. Until then, every month without one is another month of tightening supply.
Producer reserve reports
Annual, published February–March. Replacement ratio = reserve additions (conversion + exploration) ÷ ounces mined. Below 1.0× is a structural problem. Below 0.5× is urgent. Always check whether the “additions” came from new discovery or from reclassifying existing resources.
The Gold Gap itself
As acquirers compete for a shrinking pool of targets, deal prices should move higher. The Core median ($93/oz) has been stable because deal flow has been steady. Watch for the first Core-eligible transaction that pays north of $150/oz. That’s the compression starting to crack.
Track the Gold Gap in real time at gilbertanalytics.github.io/gold-gap.
Signal Tracker
This article covers Signals 2 and 3 of The Last Stage — a series tracking the forces compressing the Gold Gap from above.
| Signal | Topic | Status |
| 1 | The Rotation Within Gold | Published |
| 2 | The Discovery Collapse | ← Covered in this article |
| 3 | The Depletion Clock | ← Covered in this article |
| 4 | The Bidding War | Next |
| 5 | The Floor Under the Floor | Planned |
| 6 | Capital is Coming | Planned |
| 7 | The Gold Gap — Your Signal | Planned |
Each signal adds pressure. The Gold Gap is the scoreboard.
Sources
- S&P Global Market Intelligence: World Exploration Trends 2026 (April 2026); Corporate Exploration Strategies 2024 (December 2024); CES 2024 Gold Exploration Budgets (November 2024)
- S&P Global Market Intelligence: Mining M&A in 2025 (March 2026)
- S&P Global Market Intelligence: Mine Cost Outlook 2026 — Inflation, New Supply Reshape Global Mining Landscape (January 2026)
- MinEx Consulting: Gold Discovery Trends (Schodde, multiple editions 2010–2021)
- Newmont Corporation: Newmont Reports 2025 Mineral Reserves of 118.2 million Gold Ounces and 12.5 million Tonnes of Copper, February 19, 2026. Primary source: https://s24.q4cdn.com/382246808/files/doc_earnings/2025/q4/supplemental-info/Newmont-2025-Reserves-Release.pdf
- McKinsey & Company: Top 20 Gold Producer Reserve Analysis (2012–2017 study period)
- World Gold Council: AISC Q3 2024 commentary (Gold Focus blog, March 2025)
- U.S. Geological Survey: Global Gold Reserve Estimates
- Gilbert Analytics: Gold M&A Database v8.7 (15 transactions, 2021–2026); GA_MTH022 Current Parameters v1.4
The Gold Grid ranks a curated set of junior gold explorers on what acquirers actually look for. It launches August 3 at gilbertanalytics.substack.com.
About the Author
Alain Gilbert, B.Eng., is the founder of Gilbert Analytics, a mining intelligence firm specializing in systematic valuation of junior gold companies. His work bridges mechanical engineering methodology with mineral resource analysis, applying quantitative frameworks to an industry traditionally driven by narrative. Gilbert Analytics publishes The Gold Grid on Substack (gilbertanalytics.substack.com) and maintains the interactive Gold Gap Index at gilbertanalytics.github.io/gold-gap. Connect with Alain on LinkedIn: linkedin.com/in/alain-gilbert-23661465/
Disclaimer
This article is for educational and informational purposes only and does not constitute investment advice. The author holds positions in publicly traded junior gold companies and may also hold positions in other publicly traded companies mentioned in this publication. The author is not a licensed financial analyst, registered broker-dealer, or investment adviser. Results presented are not typical — past performance is not indicative of future results. Always consult a qualified financial professional before making investment decisions. Never make an investment based solely on what you read in an online newsletter.
