Value Investing Observatory
"Price is what you pay. Value is what you get."
Issue #27 · Weekly Stock Analysis · October 07, 2026
Welcome to this week's edition of The Buffett Lens, where we apply Warren Buffett's time-tested investment principles to identify stocks with durable competitive advantages, strong management, and sensible valuations.
Our quantitative model screens thousands of US-listed stocks against 26 key factors derived from Buffett's shareholder letters, including consistent earning power, high returns on equity with minimal debt, and favorable long-term prospects. The top-scoring stocks receive a detailed analysis written in the folksy, straightforward style that has characterized Berkshire Hathaway's communications for decades.
This week, we present 2 stocks that exemplify the principles of value investing.
Picture a sturdy old farmhouse that has weathered decades of storms, its roof and walls holding firm because of reliable coatings applied year after year. RPM International builds its business around those very products—specialty chemicals for waterproofing, sealing, and protecting structures across construction and industrial markets. That steady demand gives the company a foothold that feels dependable rather than flashy.
This outfit shows real strength in the numbers that matter most to me. Its return on equity sits at 20 percent lately, with a five-year average near 25 percent, all while keeping debt to equity at a reasonable 0.87 times. That lines up with the idea that a business should earn a high rate on the capital it employs without leaning too heavily on borrowed money or accounting tricks. Revenue has held steady around 2.1 to 2.2 billion dollars per quarter, and net income has followed suit, pointing to consistent earning power rather than wild swings. The moat score of 73 out of 100 comes largely from cost advantages and resource access, which can help fend off rivals in a competitive field like basic materials. Management appears focused on operations, with institutional owners holding a large stake that often signals long-term alignment.
Of course, no business is without its wrinkles. Construction markets can slow when interest rates rise or economic conditions tighten, and specialty chemicals sometimes face raw-material price swings that squeeze margins. Insider ownership at just 1.2 percent is modest, so there is less skin in the game from those running the show compared with some other companies I favor. The current valuation, with a price-to-earnings ratio around 21 times and price-to-book near 4.3 times, is not a bargain by historical standards, and past growth rates like this are unlikely to repeat forever given the size of the enterprise.
Still, for an investor willing to think in decades rather than quarters, RPM's ability to generate solid returns on equity while protecting structures that last suggests it could compound value steadily if bought at sensible prices and held through the inevitable ups and downs. Patience turns ordinary businesses into fine investments when the economics remain sound and the price paid leaves room for the underlying earnings to work their magic over time. For those looking to act on this, the ticker for RPM International Inc. on eToro is $RPM.
— Buffett Bot
Trade RPM International Inc. — The ticker for RPM International Inc. on eToro is $RPM
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 20.0% | >15% | PASS |
| Debt/Equity | 0.87x | <0.5x | WARN |
| Gross Margin | 42.6% | >40% | PASS |
| Market Cap | $12.5B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $7.9B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.7B | Positive, with YoY growth preferred | PASS |
Owning shares in a gold mining outfit like Newmont feels a bit like staking a claim along a winding river that occasionally yields rich deposits, provided you steer clear of the sudden rapids and shifting banks that can wash away returns. The company pulls gold from sites across the Americas, Australia, and Africa, along with some copper and other metals, giving it a spread of operations that has lifted revenue from near zero to over 25 billion dollars in recent quarters and net income to 8.6 billion on a trailing basis.
This setup lines up well with sound principles of earning strong returns on equity capital without leaning on heavy borrowing. Newmont shows a latest return on equity of 24.4 percent and a five-year average near 18.6 percent, all while keeping debt to equity at just 0.16 times. That combination suggests the business itself carries real advantages in costs and access to resources, much like a castle with natural walls that deter easy competition. A moat score around 79 out of 100 backs this up, and the low leverage means owners are not paying for flashy growth through gimmicks or borrowed money. Management appears focused on running the assets they have, which matters more than any reputation for clever rowing in a tough industry.
Still, no river runs steady forever, and there are clear limits here. Gold prices swing with broader economic moods and inflation fears, so earnings can drop sharply even if the mines keep producing. Operations in places like Papua New Guinea or Ghana bring political and regulatory uncertainties that a domestic business would avoid. Insider ownership sits at just 0.3 percent, which hints that those closest to the work may not have as much skin in the game as one would prefer. Past growth rates in net worth or earnings cannot be counted on to repeat, and market swings will affect reported results regardless of how well the mines are run.
Over the long haul, Newmont could still compound value for patient owners if it keeps delivering solid returns on capital and the gold price environment stays reasonable. At a price-to-earnings ratio of 11.5 times and enterprise value to EBITDA near 6 times, the shares trade at a level that leaves room for the underlying economics to reward steady holding rather than quick flips. The key is to focus on the business's ability to generate cash over decades, not short-term metal quotes. For those looking to act on this, the ticker for Newmont Corporation on eToro is $NEM.
— Buffett Bot
Trade Newmont Corporation — The ticker for Newmont Corporation on eToro is $NEM
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 24.4% | >15% | PASS |
| Debt/Equity | 0.16x | <0.5x | PASS |
| Gross Margin | 56.0% | >40% | PASS |
| Market Cap | $119.6B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $25.8B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $8.6B | Positive, with YoY growth preferred | PASS |
The following stocks from previous issues have fallen below our Buffett thresholds. We believe in accountability - when our picks deteriorate, you should know.
Recommended in Issue #4 (2026-03-25) with score 80.1
Current score: 73.0 (-7.1 points)
ROE: 26.4% | Debt/Equity: 0.97x | Gross Margin: 38.6%
Consider reviewing your position.
Recommended in Issue #3 (2026-03-18) with score 77.6
Current score: 73.0 (-4.6 points)
ROE: 26.4% | Debt/Equity: 0.97x | Gross Margin: 38.6%
Consider reviewing your position.
Recommended in Issue #11 (2026-06-10) with score 67.4
Current score: 72.0 (+4.6 points)
ROE: 14.5% | Debt/Equity: 0.31x | Gross Margin: 15.6%
Consider reviewing your position.
Recommended in Issue #11 (2026-06-10) with score 67.0
Current score: 73.0 (+6.0 points)
ROE: 9.2% | Debt/Equity: 0.29x | Gross Margin: 39.2%
Consider reviewing your position.
Recommended in Issue #19 (2026-08-12) with score 59.0
Current score: 65.0 (+6.0 points)
ROE: 31.3% | Debt/Equity: 1.35x | Gross Margin: 29.6%
Consider reviewing your position.
This newsletter is for educational and informational purposes only and should not be construed as investment advice. The analyses presented are based on publicly available information and quantitative models. Past performance does not guarantee future results. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
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