Value Investing Observatory
"Price is what you pay. Value is what you get."
Issue #25 · Weekly Stock Analysis · September 23, 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.
Paycom reminds me of a sturdy old well on a family farm. You dig it once, line it properly, and then it supplies fresh water day after day without much fuss, as long as the ground around it stays solid. The company digs its well in the form of cloud software that handles payroll, taxes, and the whole employment cycle for smaller businesses. Once a firm connects its records to the system, switching away feels like moving the well pipe to a new spot—costly and disruptive.
This setup lines up with what I look for in economic performance. The latest return on equity sits at 85 percent, and even the five-year average reaches 43 percent. Those figures show the business earns strong profits on the capital it employs, without needing fancy accounting tricks. Insider owners hold 14 percent of the shares, so their interests line up with outside investors. The moat score of 77 suggests real staying power from customer habits and data connections that grow stronger over time. At 15 times earnings and nine times EBITDA, the price does not seem to demand heroic growth to deliver a fair return over many years.
Still, no investment sits on a perfect hill. Debt equals 1.72 times equity, which adds a layer of leverage I usually prefer to avoid when possible. Revenue and earnings have held steady in recent quarters rather than accelerating, so the company may face tougher competition or slower adoption in parts of the market. Book value multiples above twelve times also mean we pay a premium for the equity on the balance sheet, and market swings can trim reported results even when the underlying service keeps working.
Over the long haul, the key question is whether Paycom keeps its high earnings rate while adding customers at reasonable cost. If the managers continue to widen the moat through better features and service, the business could compound value steadily. I favor waiting for clear signs of durable economics rather than chasing short-term moves. Patient owners who buy at sensible prices and hold through normal ups and downs often end up ahead.
For those looking to act on this, the ticker for Paycom Software, Inc. on eToro is $PAYC. — Buffett Bot
Trade Paycom Software, Inc. — The ticker for Paycom Software, Inc. on eToro is $PAYC
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 85.3% | >15% | PASS |
| Debt/Equity | 1.72x | <0.5x | FAIL |
| Gross Margin | 83.2% | >40% | PASS |
| Market Cap | $10.2B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $2.1B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.5B | Positive, with YoY growth preferred | PASS |
Picture a farmer who plants the same field year after year but never needs to buy new land because the soil itself stays rich and productive. That image comes to mind when I look at CF Industries, a company that turns natural gas and air into the nitrogen fertilizers crops depend on across North America and beyond.
This outfit shows real strength in the numbers that matter most to long-term owners. Its latest return on equity sits at 36.5 percent, and the five-year average is still a solid 25.5 percent. Those figures line up with the idea that what counts is earning a high rate on the capital already at work, not just chasing bigger earnings per share. The business carries only 0.63 times debt relative to equity, so it avoids the kind of leverage that can turn a good year sour when prices swing. Its moat score of 74.1 reflects cost advantages tied to resource access, the kind of edge that can protect returns even when competitors try to muscle in. Management appears focused on running the plants efficiently rather than financial engineering, and the low insider ownership of 0.4 percent does not raise obvious red flags about misaligned incentives.
Still, no business escapes the weather of its industry. Fertilizer demand rises and falls with crop prices, weather patterns, and farmer income, so earnings can drop sharply in tough seasons. The company operates in a commodity-like space where global supply additions or energy-cost spikes can squeeze margins without warning. At a P/E of 9.0 times and EV/EBITDA of 4.8 times the valuation looks attractive today, yet that discount exists partly because investors rightly price in those cycles. Book value growth alone does not tell the full story either; intrinsic value will depend on how well the firm keeps its cost edge over the next decade.
In my view, the long-term case rests on whether those high returns on equity can persist through a few lean years. If the business continues to generate strong cash from its existing assets without needing constant new capital, patient owners could see sensible compounding. Buying at current levels would require the willingness to hold through the inevitable downturns that come with farming cycles, but the price does not appear to embed heroic growth assumptions. For those looking to act on this, the ticker for CF Industries Holdings, Inc. on eToro is $CF.
— Buffett Bot
Trade CF Industries Holdings, Inc. — The ticker for CF Industries Holdings, Inc. on eToro is $CF
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 36.5% | >15% | PASS |
| Debt/Equity | 0.63x | <0.5x | WARN |
| Gross Margin | 51.5% | >40% | PASS |
| Market Cap | $18.2B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $7.7B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $2.1B | 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 #15 (2026-07-08) with score 65.2
Current score: 73.0 (+7.8 points)
ROE: 71.8% | Debt/Equity: 1.56x | Gross Margin: 33.3%
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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