Value Investing Observatory
"Price is what you pay. Value is what you get."
Issue #3 · Weekly Stock Analysis · March 13, 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 5 stocks that exemplify the principles of value investing.
Well, howdy there, neighbor. If you've ever tried to keep track of a busy farm with all its workers, tools, and chores without a solid system in place, you know how things can get mighty messy quick. That's what Paycom Software reminds me of—a reliable foreman who helps small and mid-sized businesses manage their people from hiring to retirement, all through a cloud-based setup that's as handy as a well-organized tool shed. It's like having a smart assistant who makes sure the payroll's right, the taxes are filed, and everyone knows their job, delivered as a service you pay for like a subscription to your favorite newspaper. In a world where companies are always juggling folks and finances, Paycom steps in to make life simpler, and they've been growing steadily in the U.S. market for businesses that aren't giants like ours at Berkshire Hathaway.
Now, let's talk about what makes a business tick for me. I've always said that the real test of a company's worth is how much bang you get for your buck in terms of earnings on the capital invested—without piling on debt or funny accounting tricks. Paycom shines here with a return on equity of about 26% over the last year, and it's been averaging around 27% over the past five years. That's like a farmer getting a solid crop from the land without overworking the soil. They've done this with barely any debt—debt to equity is just 0.05 times, which means they're not borrowing to make the numbers look pretty. That's a rare and comforting sight in today's world. And speaking of management, they've got a good crew at the helm, with insiders owning a decent chunk at 12.6%, showing they're rowing in the same boat as shareholders. Much like how I harp on in my letters, it's the managers who create the extra value, and here they've built something special in the human capital management space.
This outfit also has a wide moat around it, much like a castle with a deep ditch and sturdy walls to keep out the invaders. Their moat score is a healthy 76.5 out of 100, thanks to ecosystem lock-in—once a company signs on, it's hard to switch because all the data and integrations make it sticky—and network effects, where more users make the whole system better for everyone. In the tech world, that's like building a community barn where everyone benefits from shared tools and knowledge. It's not just about rowing hard; it's about being in the right boat, and Paycom's in a darn good one for small and mid-sized businesses that need reliable help without the fuss.
That said, I'm not one to sugarcoat things. No business is perfect, and Paycom has its share of worries. Tech can be fickle—think of how quickly trends change, like fashions at a county fair. They're focused on the U.S. market, so if something shakes up the economy here, it could ripple through. Competition is heating up too; there are other players offering similar services, and if they start undercutting prices or adding bells and whistles, it might pinch. Growth has been steady, with revenues around $2.1 billion last year and profits at $500 million, but it's not skyrocketing like some hot tech darlings. And remember, as I noted back in '79, even a business earning 20% on capital can struggle in tough times if inflation bites. Plus, their book value might look good, but it's intrinsic value that counts—market swings can make reported numbers bounce around, and we can't expect past growth rates to keep up forever.
All in all, though, I see long-term potential here for patient investors. At a price-to-earnings ratio of about 16 times and an enterprise value to EBITDA of 8.6 times, it doesn't seem overpriced for a company with such solid fundamentals and a strong moat. It's like finding a sturdy plow at a fair price—you might not flip it for quick profit, but over years, it could till a fine field. If you're thinking about buying in, remember my mantra: invest in what you understand, hold for the long haul, and let compounding do its work. For those looking to act on this, the ticker for Paycom Software, Inc. on eToro is $PAYC. Just like I always say, patience is the investor's best friend.
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) | 26.2% | >15% | PASS |
| Debt/Equity | 0.05x | <0.5x | PASS |
| Gross Margin | 83.9% | >40% | PASS |
| Market Cap | $6.9B | >$10B | FAIL |
| 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 |
Fellow investor, let me tell you a little story about Exelixis, Inc., this oncology outfit that's been working hard to battle some of the nastiest cancers out there. Imagine cancer as a stubborn weed in your garden—hard to pull up, keeps coming back, and can ruin the whole plot if you don't have the right tools. Well, Exelixis is like the gardener with a sharp hoe and some mighty fine fertilizers in the form of their drugs, CABOMETYX and COMETRIQ, both spun from this inhibitor called cabozantinib. These medicines help folks with advanced kidney cancer and a tough thyroid cancer, and they've been making real headway in a field where success isn't guaranteed. It's a bit like finding a reliable fishing spot in a big, unpredictable lake; you might not catch a whale every time, but if the spot's good, you'll bring home enough to keep the family fed.
Now, let's talk about what makes this business tick for me, and I'll tie it back to the simple principles I've lived by over the years. First off, this company has been building some serious earning power. Their revenue has climbed steadily over the last eight quarters, from nothing to about $600 million a quarter, and the last four quarters added up to $2.3 billion in sales. That's paired with net income of $800 million over the same stretch—nothing to sneeze at, especially in a business that's all about innovation. Their return on equity stands at a healthy 36.2%, and over the past five years, it's averaged 18.6%. As I once wrote back in 1979, the real test is getting a high earnings rate on the capital you put to work, without tricks or too much borrowing. Exelixis is doing that, with a debt-to-equity ratio of just 0.08 times—meaning they're not piling on obligations that could sink them if the winds shift. It's like rowing a boat without a leak; you can go farther without worrying about taking on water.
Then there's the moat around this castle, as I like to call it. Their score of 76.4 out of 100 comes from strong patent protection on those drugs and a solid R&D setup that lets them keep inventing new treatments. In my 1985 letter, I pointed out that a great manager in a lousy business won't change much, but a good business with smart folks running it can shine. Here, the management seems to be rowing effectively in a boat that's got real potential. Their insider ownership is modest at 2.2%, but the institutional folks are heavily invested at over 100%—that tells me the big money managers see something worthwhile. And just like in my 1990 letter, where I noted that talented managers create extra value, Exelixis's team appears to be doing just that, driving that high ROE without relying on industry magic.
Of course, I'm not one to ignore the risks, and I do so with a humble nod to the fact that even the best of us can be surprised. Biotech is a tricky field—think of it as farming in a drought-prone area. Clinical trials can flop, regulators might say no, or competitors could come along with better weapons. Their stock has been volatile, as you'd expect in healthcare, and while they're growing, past growth rates, as I cautioned in 1996, might not repeat forever. Market swings can mess with reported earnings, and inflation or economic slowdowns could pinch demand for these pricey treatments. Plus, they're still in the commercialization phase, so they're not as established as some old-timers like Coca-Cola. I wouldn't bet the farm on this without doing your homework, but that's just good sense for any investment.
All in all, Exelixis strikes me as a sensible long-term hold at around $40.73 a share, with a market cap of $10.9 billion. Their valuation looks reasonable— a P/E of 13.7 times, P/B of 5, and EV/EBITDA of 11.3—suggesting the market isn't overpaying for the growth they're showing. If you believe in the power of innovation and a wide moat, this could be like planting an oak tree: it takes time to grow, but it provides shade for generations. Patience is key here; don't chase quick profits, but think about owning a piece of a company that's fighting real diseases and building real value. For those looking to act on this, the ticker for Exelixis, Inc. on eToro is $EXEL. Just remember, investing is a marathon, not a sprint—choose your partners wisely and stay the course. Yours in value, Warren Buffett.
Trade Exelixis, Inc. — The ticker for Exelixis, Inc. on eToro is $EXEL
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 36.2% | >15% | PASS |
| Debt/Equity | 0.08x | <0.5x | PASS |
| Gross Margin | 95.6% | >40% | PASS |
| Market Cap | $10.9B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $2.3B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.8B | Positive, with YoY growth preferred | PASS |
Well, howdy there, neighbor. If you've ever watched a patient old farmer tilling the same fertile patch of land year after year, pulling out bountiful harvests despite the occasional storm or drought, you might get a sense of what Permian Resources Corporation reminds me of. This company's like that farmer, digging into the rich Delaware Basin in the Permian region of Texas and New Mexico, where they've got a solid foothold in oil and natural gas. It's not the flashiest operation—more like steady plowing than high-wire acrobatics—but that's exactly what catches my eye. Folks, we're talking about an independent oil outfit that's been building its reserves and revenues in a way that feels grounded and sustainable, much like how I've always preferred businesses that keep their heads down and focus on the long haul.
Now, let's talk about what makes this business tick, and how it lines up with some of the simple truths I've learned over the years. First off, consistent earning power is key, and Permian Resources has shown real progress there. Their revenues have climbed nicely over the past eight quarters, from nothing much to over a billion dollars a quarter lately, with last twelve months' revenue hitting $5.1 billion and net income at $0.9 billion. That's the kind of growth that doesn't scream "get rich quick" but whispers "steady as she goes." Their return on equity stands at 9.1% right now, averaging 5.8% over five years—not world-beating, mind you, but respectable for an energy play. And get this: they've kept debt low, with a debt-to-equity ratio of just 0.36 times. As I like to say, borrowing too much is like rowing a boat with leaky oars—you might look good for a spell, but sooner or later, you're taking on water. Here, they're rowing efficiently without undue leverage, which gives me confidence in their economic performance.
Then there's the moat—ah, that protective ditch around a castle that keeps the invaders at bay. Permian Resources scores a solid 65.7 out of 100 on that front, thanks to their asset base and cost advantages in the Delaware Basin. They've got prime acreage in Reeves and Lea counties, where the oil and gas flow rich with liquids, giving them an edge over competitors who might be scrambling for scraps. It's not an unassailable fortress, but it's wide enough to weather commodity price swings and let them operate profitably. Management-wise, I always look for folks who have skin in the game, and while insider ownership is modest at 0.8%, the heavy institutional backing at 87.1% suggests smart money sees value here. Our job, as I've often noted, is to find talented managers and give them room to shine, and these leaders seem to be driving results without too much accounting smoke and mirrors.
That said, I'm not one to sugarcoat things, so let's be humble about the risks. This is a commodity business, and oil prices can be as fickle as the weather—up one day, down the next, depending on global supply, demand, and whatever geopolitical shenanigans pop up. If prices tank, even a well-managed outfit like this could see its earnings wobble, much like a farmer facing a bad harvest. And while their moat is decent, it's not impregnable; competition in the Permian Basin is heating up, with bigger players elbowing in. Management's low insider stake doesn't worry me unduly, but I'd always prefer seeing more personal investment from the top brass. Plus, energy's a cyclical game—past growth rates, as I've warned before, can't always be repeated, and market fluctuations can play tricks on reported numbers.
All in all, though, I see long-term potential here. Permian Resources is priced sensibly, with a P/E of 14 times, P/B of 1.3, and EV/EBITDA at 4.5—nothing extravagant, which means you're not overpaying for future promises. Their Buffett Score of 75 out of 100 reflects a business that's aligning well with principles like solid earnings, low debt, and a competitive edge. If you're a patient investor, willing to hold through the ups and downs of the oil cycle, this could be a sensible buy at around $18.91 a share and a $16 billion market cap. Energy's not going away anytime soon, and a company with their assets and discipline might just compound value nicely over time, provided they keep rowing steadily. Just remember, as I've always said, our job is to be patient owners, not gamblers chasing the next big wave.
For those looking to act on this, the ticker for Permian Resources Corporation on eToro is $PR.
Trade Permian Resources Corporation — The ticker for Permian Resources Corporation on eToro is $PR
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 9.1% | >15% | FAIL |
| Debt/Equity | 0.36x | <0.5x | PASS |
| Gross Margin | 34.8% | >40% | FAIL |
| Market Cap | $16.0B | >$10B | PASS |
| LTM Revenue (Last 4Q) | $5.1B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.9B | Positive, with YoY growth preferred | PASS |
Well, howdy there, neighbor. If you've ever stood in your kitchen waiting for the hot water to kick in on a chilly morning, you know the quiet reliability of a good water heater—it's like that dependable old pickup truck in your driveway that just keeps chugging along without fuss. That's A.O. Smith Corporation for you. They've been making and selling water heaters, boilers, heat pumps, and all sorts of water-related gadgets for homes and businesses across North America, China, Europe, and India. It's not the flashiest business in the world—no rockets or fancy tech here—but it's steady, like a well-built barn that weathers the storms. And in investing, as I've always said, we're looking for those sturdy structures that hold up over time, not the shiny new toys that break down after a year.
Now, let's talk about what makes A.O. Smith tick, and how it lines up with the principles I've stuck to over the years. First off, this company has shown a knack for earning real money on the capital it employs. Their return on equity—that's basically how much profit they're generating for every dollar of shareholder money tied up in the business—is sitting at 29.4% right now, and over the past five years, it's averaged 16.6%. That's the kind of performance I like to see, without relying on a heap of debt or accounting tricks to puff things up. Back in 1979, I wrote about how a business earning 20% on its capital can still leave owners with a loss if inflation's biting hard, but A.O. Smith's got that going for them, and with a debt-to-equity ratio of just 0.10 times, they're not overextending themselves. It's like rowing a boat with a good current behind you, rather than paddling furiously against the tide.
They've also built themselves a nice little moat, as we call it—a protective barrier that keeps competitors at bay. With a score of 71.4 out of 100, A.O. Smith's got long-term contracts and those pesky switching costs that make it tough for customers to jump ship. Imagine trying to switch out a water heater in a big hotel or school; it's not like changing light bulbs. That gives them pricing power and steady business, much like a castle with a wide moat that repels invaders without much fuss. As for the folks running the show, it's a mixed bag. Insider ownership at 0.4% is on the low side, which might mean the managers aren't as personally invested as I'd prefer, but the institutional ownership at over 100% suggests plenty of smart money believes in it. Still, great management is often about picking the right business boat, as I noted in 1985— and this one's got good fundamentals.
But let's not get carried away; every business has its warts, and A.O. Smith is no exception. Revenue and net income have bounced around over the past eight quarters, from zero to nearly a billion in some spots, which shows the ups and downs of the industrial world. They're tied to the economy—think housing starts, commercial construction, and even weather patterns that drive demand for heating and cooling. If inflation keeps nibbling away or if global trade hiccups, it could squeeze margins. And while their valuations look reasonable—a price-to-earnings ratio of 15 times and price-to-book of 4.4 times aren't screaming bargains, but they're not outrageous either—market swings can make things feel volatile. As I mentioned in 1996, our gains in book value don't always match intrinsic value, and past growth rates might not repeat. It's humble stuff, but worth noting: this isn't a sure thing, and like any investment, it requires patience.
All in all, though, A.O. Smith strikes me as a sensible long-term hold for folks like you and me who believe in buying businesses that can compound value over decades. With strong earnings power, a solid moat, and minimal debt, it's the kind of company that could grow steadily as the world keeps needing hot water and efficient heating. At around $66 a share and a market cap of $9.2 billion, it's priced to deliver reasonable returns if you hold on through the noise. Investing isn't about timing the market; it's about time in the market. Give it room to breathe, and it might just warm your portfolio nicely over time. For those looking to act on this, the ticker for A.O. Smith Corporation on eToro is $AOS. Take care, and remember, as always, invest only what you can afford to leave alone for a good long while.
Trade A. O. Smith Corporation — The ticker for A. O. Smith Corporation on eToro is $AOS
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 29.4% | >15% | PASS |
| Debt/Equity | 0.10x | <0.5x | PASS |
| Gross Margin | 38.4% | >40% | FAIL |
| Market Cap | $9.2B | >$10B | FAIL |
| LTM Revenue (Last 4Q) | $3.8B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.5B | Positive, with YoY growth preferred | PASS |
Well, hello there, neighbor. It's me, Warren Buffett, and I reckon I'm always glad to chat about businesses like we're sitting on the porch, sharing a lemonade and talking about the finer things in life—such as a solid company that might just hold up better than a barn in a tornado. Today, I'm musing on MarketAxess Holdings Inc., a firm that operates like a well-built bridge across a busy river, connecting buyers and sellers of bonds without much fuss or floodwater getting in the way. It's an electronic trading platform for institutional folks trading everything from U.S. high-grade bonds to emerging market debt, and it does this dance in the U.S., UK, and beyond. Sounds simple, right? But simplicity in business is often where the real magic happens, much like a good apple pie recipe.
Let me start by looking at what makes this outfit tick, aligning with the principles I've hammered on over the years. First off, this company has a knack for earning money consistently, which reminds me of a reliable old farm tractor that just keeps chugging along. Their revenue has grown from zero to a steady $0.8 billion over the last four quarters, and net income has followed suit, hitting $0.2 billion. That's the kind of earning power that warms my heart—it's not flashy, but it's dependable. And speaking of earnings, their return on equity stands at a healthy 21.5%, with a five-year average of 10.4%. Now, as I said back in '79, the real test is a high earnings rate on equity without tricks or too much borrowing, and MarketAxess keeps its debt-to-equity ratio at a modest 0.25 times. It's like they borrowed just enough to buy a new plow but not a whole fleet of tractors. This low leverage means they're not gambling on a good harvest; they're farming sustainably.
Another thing I like is the economic moat they've built, scoring 76.2 out of 100 on scale advantages and regulatory protections. It's akin to owning the only bridge over a river—once folks need to cross, they're likely to pay the toll. In bond trading, where trust and efficiency matter, MarketAxess has carved out a spot that's hard for newcomers to crack, thanks to its network and rules that favor the established players. And while management quality is key, as I noted in '90, our job is to spot talent and let them run. Here, institutional ownership is high at over 105%, which suggests smart money believes in the team, even if insider ownership is modest at 2.5%. It's not about me rowing the boat, but getting into a good boat—and this one seems seaworthy.
Of course, no business is perfect, and I'd be remiss not to mention the bumps in the road. For starters, bond markets can be as fickle as the weather, with interest rates swinging like a weathervane in a gust. If rates rise too fast or trading volumes dip, it could squeeze their profits, much like a dry spell hurting the crops. Valuation-wise, at a P/E of 24.3 times and a P/B of 5.2 times, it's not screaming "bargain" like some of my favorite buys. The EV/EBITDA of 12.7 times is reasonable but not dirt cheap, meaning we're paying a premium for that moat. And while their Buffett Score hits 73.2 out of 100—pretty respectable—that doesn't mean it's immune to market whims. I've always said, as in '96, intrinsic value trumps book value, and we have to temper expectations because past growth might not repeat itself.
All that said, I see long-term potential here for patient investors like you and me. Bond trading isn't going away—it's the backbone of finance, and electronic platforms are just getting more efficient, like upgrading from horse-drawn carts to automobiles. MarketAxess is well-positioned to benefit from that, with consistent earnings and a moat that should fend off competitors. At $181.30 a share and a $6.7 billion market cap, it's not overpriced if you believe in the fundamentals, and for folks who can wait out the storms, it could be a sensible addition to a diversified portfolio. Patience is key, as always—investing isn't a sprint, but a long walk in the park. For those looking to act on this, the ticker for MarketAxess Holdings Inc. on eToro is $MKTX. Stay curious, my friend.
Trade MarketAxess Holdings Inc. — The ticker for MarketAxess Holdings Inc. on eToro is $MKTX
eToro is a multi-asset investment platform. Capital at risk.
| Metric | Value | Buffett Threshold | Status |
|---|---|---|---|
| ROE (Latest) | 21.5% | >15% | PASS |
| Debt/Equity | 0.25x | <0.5x | PASS |
| Gross Margin | 58.8% | >40% | PASS |
| Market Cap | $6.7B | >$10B | FAIL |
| LTM Revenue (Last 4Q) | $0.8B | Positive, with YoY growth preferred | PASS |
| LTM Net Income (Last 4Q) | $0.2B | Positive, with YoY growth preferred | PASS |
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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