Value Investing Observatory

The Buffett Lens

"Price is what you pay. Value is what you get."

Issue #15 · Weekly Stock Analysis · July 08, 2026

This Week's Analysis

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.

#1: Lennox International Inc. (LII)

Industrials $537.76 Buffett Score: 65.2/100 Source: yfinance
Data Quality Notice: Source=yfinance; only 6 periods available (target: 8+ quarters); missing metric fields=1.

Weekly Price History

Weekly HLOC Price Chart

Revenue & Net Income

Revenue and Net Income Chart

Profitability Metrics

Profitability Chart

Financial Health

Financial Health Chart

Valuation Multiples

Valuation Chart

Buffett-Style Analysis

Investing in a company like Lennox International Inc. is akin to betting on the local hardware store that sells tools everyone needs but few think about until they break. They design, manufacture, and sell heating, ventilation, air conditioning, and refrigeration products, serving homes and businesses in the US, Canada, and beyond. In the Home Comfort Solutions part alone, they offer furnaces, air conditioners, heat pumps, and all the bits and pieces that keep things running smoothly. It's a business that benefits from both new construction and the inevitable replacements as old units wear out.

This outfit has a wide moat, much like a castle protected from invaders, thanks to long-term contracts and switching costs that discourage customers from jumping ship. Their track record on returns is impressive. The latest return on equity is 66.1%, and over five years it averages 63.6%. I have always stressed that the primary test of managerial economic performance is the achievement of a high earnings rate on equity capital employed, without undue leverage or accounting gimmickry. These numbers point to a business that can produce strong returns for owners.

Revenue has been trending up over the last eight quarters, reaching a last twelve months total of 5.3 billion dollars, with net income at 0.8 billion. That's consistent earning power, which is music to an investor's ears. Insider ownership at 9.6% shows that the folks running the place have their own money at risk, and institutional investors hold most of the rest at 79.2%. A good managerial record is far more a function of what business boat you get into than how effectively you row. Lennox seems to be in a boat with decent fundamentals.

Yet, I must speak humbly about the shortcomings. The debt to equity stands at 1.61 times, which introduces some leverage I generally steer clear of when possible. High returns on equity can look great on paper but might not hold up as well if borrowing costs rise or economic conditions tighten. Valuation-wise, the price to earnings is 23.1 times, price to book is 15.3 times, and EV to EBITDA is 17.5 times. These multiples suggest the market is paying a premium, and in my experience, you want a discount for safety.

Furthermore, the sector is industrials, which can feel the effects of housing cycles, interest rates, and even inflation. As I noted years ago, a business earning a high rate on capital can still produce a negative real return for owners under inflationary conditions. I have to watch that.

Looking to the future, this company has the potential to create value over the long term if it continues to focus on what it does well. Much of the extra value in businesses comes from the managers running them, and Lennox appears to have capable ones. My expectations must be tempered by realities: past rates of growth cannot be matched forever, and market fluctuations will influence reported results. At the current price of 537.76 dollars with a market capitalization of 18.7 billion, it might be a sensible buy for patient investors who believe in the enduring need for climate control systems. The key is to buy at a price that gives you room if things don't go perfectly, and then hold on.

For those looking to act on this, the ticker for Lennox International Inc. on eToro is $LII.

Trade Lennox International Inc. — The ticker for Lennox International Inc. on eToro is $LII

eToro is a multi-asset investment platform. Capital at risk.

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Key Metrics Summary

Metric Value Buffett Threshold Status
ROE (Latest) 66.1% >15% PASS
Debt/Equity 1.61x <0.5x FAIL
Gross Margin 30.9% >40% FAIL
Market Cap $18.7B >$10B PASS
LTM Revenue (Last 4Q) $5.3B Positive, with YoY growth preferred PASS
LTM Net Income (Last 4Q) $0.8B Positive, with YoY growth preferred PASS

#2: Freeport-McMoRan Inc. (FCX)

Basic Materials $57.50 Buffett Score: 64.1/100 Source: yfinance
Data Quality Notice: Source=yfinance; only 6 periods available (target: 8+ quarters); missing metric fields=0.

Weekly Price History

Weekly HLOC Price Chart

Revenue & Net Income

Revenue and Net Income Chart

Profitability Metrics

Profitability Chart

Financial Health

Financial Health Chart

Valuation Multiples

Valuation Chart

Buffett-Style Analysis

If you've ever owned a piece of land that keeps producing crops year after year no matter the weather, you can understand the appeal of Freeport-McMoRan. The company sits on some of the world's richest deposits of copper and gold, from the massive Grasberg district in Indonesia to operations scattered across Arizona, Peru, and Chile. It's not just digging holes; it's sitting on assets that have generated rising revenue and profits lately, climbing from near-zero in earlier quarters to $6.2 billion in revenue and $0.9 billion in net income in the most recent one, with last twelve months showing $26.4 billion in sales and $2.7 billion in earnings.

This outfit has a wide moat, much like a castle protected from invaders, thanks to its cost advantages and direct access to those mineral resources. Its latest return on equity sits at 14 percent, up from a five-year average of 10 percent, and that comes without undue leverage—the debt-to-equity ratio is a modest 0.53 times. I have always said the real test is a high earnings rate on equity capital employed, not flashy growth in earnings per share or accounting tricks. Here the numbers show some staying power, and the managers appear to be running the place effectively rather than fighting against poor fundamentals. Institutional investors hold most of the stock, which often signals steady oversight.

That said, I must admit the shortcomings with humility. Mining is a business boat that can rock violently with commodity prices, and no amount of managerial brilliance changes that reputation for cyclical economics. A few bad years in metal markets can turn even strong returns into slim ones, and operations in far-flung spots like Indonesia bring their own political and logistical headaches that can dent results. The average return on equity over five years was only 10 percent, which is respectable but not the kind of standout performance that builds enduring owner wealth over decades. Past growth rates like those we saw in better times at Berkshire simply cannot be counted on here.

Over the long haul, the world's need for copper and other metals should support demand, provided the company keeps extracting value from its holdings without chasing short-term gains. At the current price of $57.50, the stock trades at about 30 times earnings and 4.3 times book value, which leaves little margin for the inevitable downturns that come with this line of work. Intrinsic value matters more than book figures, and while the moat helps, patience is required—buying at full prices rarely rewards the owner who holds through cycles. If one can acquire shares when prices dip and the economics remain sound, it might fit a diversified portfolio, but only for those willing to wait out the rough patches.

For those looking to act on this, the ticker for Freeport-McMoRan Inc. on eToro is $FCX.

Trade Freeport-McMoRan Inc. — The ticker for Freeport-McMoRan Inc. on eToro is $FCX

eToro is a multi-asset investment platform. Capital at risk.

Trade on eToro

Key Metrics Summary

Metric Value Buffett Threshold Status
ROE (Latest) 14.0% >15% FAIL
Debt/Equity 0.53x <0.5x WARN
Gross Margin 26.5% >40% FAIL
Market Cap $82.7B >$10B PASS
LTM Revenue (Last 4Q) $26.4B Positive, with YoY growth preferred PASS
LTM Net Income (Last 4Q) $2.7B Positive, with YoY growth preferred PASS

⚠️ Watchlist Alerts: Past Picks Under Review

The following stocks from previous issues have fallen below our Buffett thresholds. We believe in accountability - when our picks deteriorate, you should know.

⚠️ Ovintiv Inc. (DE) (OVV) WARNING

Recommended in Issue #3 (2026-03-18) with score 74.1

Current score: 70.0 (-4.1 points)

ROE: 7.1% | Debt/Equity: 0.68x | Gross Margin: 52.7%

Consider reviewing your position.

⚠️ Advanced Drainage Systems, Inc. (WMS) WARNING

Recommended in Issue #4 (2026-03-25) with score 80.1

Current score: 78.0 (-2.1 points)

ROE: 25.1% | Debt/Equity: 0.98x | Gross Margin: 38.3%

Consider reviewing your position.

⚠️ Advanced Drainage Systems, Inc. (WMS) WARNING

Recommended in Issue #3 (2026-03-18) with score 77.6

Current score: 78.0 (+0.4 points)

ROE: 25.1% | Debt/Equity: 0.98x | Gross Margin: 38.3%

Consider reviewing your position.

Disclaimer

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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