If you’re looking for a broad stock market investment that will also deliver dividend income to you, you might want to consider the Vanguard Total Stock Market ETF (VTI -0.09%). It’s an exchange-traded fund (ETF), which means it’s a fund that trades like a stock. It’s also an index fund, encompassing not just the 500 big American companies in the S&P 500 index but just about all of the U.S. stock market — more than 3,600 stocks.

The Vanguard Total Stock Market ETF pays dividends, too, and recently sported a dividend yield of 1.2% — but whereas most healthy and growing companies pay a fixed dividend amount until they increase it, this ETF’s payout fluctuates a fair amount, as the companies in it change what they pay.

But let’s assume a 1.2% yield. If you invest, say, $1,000, you’ll receive around $12. So to collect $500 in dividend income, you’d need about 42 times that — meaning a stake worth roughly $42,000. That would mean some 130 shares.

To be clear, you can collect much more in dividend income from various high-yield stocks and even some good dividend-focused ETFs. But the Vanguard Total Stock Market ETF can still serve a useful role in your long-term portfolio, having you invested in pretty much the entire U.S. market — and, therefore, most of the U.S. economy — including stocks from Amazon (NASDAQ: AMZN) to ZIM Integrated Shipping Services (NYSE: ZIM). So if you’re bullish on the future of e-commerce and international trade, not to mention scores of other businesses, this ETF has you covered. (Note that there are reports that ZIM may be taken private. And Amazon investors are expecting its investments in artificial intelligence to make it even more efficient.)

It has more to recommend it, too, such as a low expense ratio (annual fee) of just 0.03%, costing you $3 per $10,000 invested per year.

Selena Maranjian has positions in Amazon. The Motley Fool has positions in and recommends Amazon and Vanguard Total Stock Market ETF. The Motley Fool recommends Zim Integrated Shipping Services. The Motley Fool has a disclosure policy.

For decades, UnitedHealth Group (UNH -0.40%) could do no wrong. The company raised its dividend by an exceptional 7,266% from 2010 to 2025, while shares rose as much as 1,700% during this run.

But shares have fallen roughly 40% year to date as the company faces a host of problems, from the murder of Brian Thompson, CEO of major business segment UnitedHealthcare, to federal investigations into allegedly fraudulent Medicare billing practices.

Nonetheless, shares surged 12% on Aug. 14 after filings revealed Berkshire Hathaway had bought over 5 million shares.

Berkshire’s move was seen as a major vote of confidence in the stock — and investors joined a stampede to follow Warren Buffett into the trade. Should you?

Image source: Getty Images.

Big growth potential for all segments

UnitedHealth operates through four segments. Its UnitedHealthcare segment provides consumer-oriented health benefit plans and services for employers. Optum Health provides healthcare management and financial services, while Optum Insight offers data analysis tools, consulting, and tech solutions to healthcare providers. Optum Rx is a direct-to-consumer platform offering pharmacy services and 190 million prescriptions per year to U.S. homes.

In its second-quarter report on July 29, the company reported quarterly revenue of $111.6 billion, up roughly 13% from the year-ago period. The trouble is with margins. For UnitedHealthcare, the biggest segment, operating margin fell from 6.2% in Q1 2025 to 2.4% last quarter. Combined, margin for the three Optum segments fell from 6.1% in Q1 2025 to 4.6% in Q2.

These declines are steep enough that, even with revenue on the upswing, earnings fell from $9.1 billion in Q1 2025 to $5.2 billion last quarter.

Rising medical costs are the chief headwind. In the July earnings report, new CEO Stephen Hensley acknowledged that UNH “significantly underestimated the accelerating medical trend,” and medical costs totaled $6.5 billion more than anticipated.

But management is under no such illusions now. They’re taking actions to boost efficiency and cut waste, from stepping up audits of clinical policy and payment integrity tools, to scaling artificial intelligence (AI) efforts to improve provider and patient experiences while driving down costs. Implementation of AI technologies is part of initiatives the company hopes can deliver almost $1 billion in cost reductions. Perhaps most significantly, the company is raising premiums after saying it underpriced Medicare Advantage plans in 2025.

In the meantime, each of these segments could grow significantly in the years ahead. UnitedHealthcare Employer & Individual just rolled out services in its 30th state, while Optum Rx’s growth outlook is 5%-8% annually. Optum Insight is targeting operating margin of 18%-22%, while the 4.7 million patients receiving value-based care from OptumHealth represent only a fraction of the nearly 340 million Americans who could fall under its 100-plus health plans.

It’s not just Berkshire buying

Berkshire Hathaway’s move in UnitedHealth is getting headlines. But billionaire David Tepper also scooped up 2.3 million shares, while Michael Burry of The Big Short fame bought 350,000 call options on the stock in a bet that shares would rise.

In addition, BlackRock, the world’s biggest asset manager, bought over 1 million shares last quarter. Goldman Sachs bought over 1.1 million shares, while Renaissance Technologies (the fabled fund that achieved an average annual return of 66% for decades) bought over 1.35 million.

As for management, Stephen Hensley invested $25 million just days after becoming CEO, while the company’s CFO bought another $5 million worth in shares. All told, the insider buying of UNH stock outweighed insider selling by a nearly 4:1 margin last quarter.

As the investing legend Peter Lynch observed, insiders can sell for many reasons unrelated to a stock. But they buy for only one: They think shares will go up.

Why UnitedHealth is a buy for retail investors, too

Berkshire officials haven’t commented publicly on their rationale for buying UnitedHealthcare, but it’s possible to speculate on their reasons.

Warren Buffett has called cash flow the most important metric in assessing a business’s potential. In a 2000 letter to shareholders, he wrote that dividend yield, the price-to-earnings ratio, book value, and even growth rates “have nothing to do with valuation except to the extent they provide clues to the amount and timing of cash flows into and from the business.”

Positive cash flow shows the company can cover its obligations, return money to shareholders, and potentially pursue growth and expansion. After floundering in 2024, UnitedHealth’s trailing-12-month operating cash flow has rebounded to $29 billion compared to $24.2 billion at the end of last year.

And if price-to-earnings, dividend yield, and growth rates are only background clues to cash flow, these metrics seem to bode well for UnitedHealth, too.

The company’s price-to-earnings ratio of 13.7 is cheap compared to the S&P 500,
with its average P/E ratio of around 26, while revenue growth of 13% year over year further fuels the bull case. Meanwhile, the company’s recent 5.2% dividend increase — its 15th consecutive annual payout hike — brings its yield to 2.8% as I write this, nearly triple the S&P 500 average.

For investors willing to take a long-term approach and be rewarded with rising income in the meantime, UnitedHealth is a buy.

Investors may not realize it, but today (Aug. 14) is one of the most important days of the entire quarter. While earnings season is critical in helping investors learn about the operating health of America’s leading businesses, Form 13F filings, which are due today, are equally invaluable.

A 13F is a required filing due no later than 45 calendar days following the end to a quarter for institutional investors with at least $100 million in assets under management. It allows investors to track which stocks Wall Street’s smartest money managers purchased and sold in the latest quarter (in this instance, the June-ended quarter), as well as identify which trends have the attention of successful fund managers.

Image source: Getty Images.

Although Warren Buffett is the stock market’s most followed billionaire investor, he’s far from the only billionaire known for their outsized investment returns. For instance, Coatue Management’s Philippe Laffont, who’s been a big investor of the artificial intelligence (AI) revolution, is known for spotting phenomenal deals hiding in plain sight.

Laffont’s approach to the evolution of AI has been particularly interesting. Specifically, he’s pared down his fund’s stake in the face of the AI movement, Nvidia (NVDA -0.83%), for eight straight quarters, and has been buying shares of another historically cheap AI stock hand over fist.

Coatue Management’s billionaire chief has sold 83% of his fund’s Nvidia stake

While some billionaire money managers bid adieu to AI-graphics processing unit (GPU) colossus Nvidia many quarters ago, Coatue Management billionaire boss has been paring down his fund’s stake with some degree of consistency for two full years. Accounting for Nvidia’s historic 10-for-1 stock split in June 2024, Laffont has overseen an 83% reduction in his fund’s position in this AI powerhouse:

• Q1 2023: 49,802,020 shares of Nvidia
• Q2 2023: 46,449,700 shares
• Q3 2023: 45,410,400 shares
• Q4 2023: 43,222,010 shares
• Q1 2024: 13,851,410 shares
• Q2 2024: 13,754,447 shares
• Q3 2024: 10,138,161 shares
• Q4 2024: 10,006,488 shares
• Q1 2025: 8,545,835 shares

With Coatue’s average top-20 position held for roughly 21 months, as of the end of March, it demonstrates that Laffont and his top advisors aren’t shy about locking in gains when presented with the opportunity. Nvidia shares catapulting more than twelvefold since the start of 2023 has given Coatue’s brightest investor plenty of reason to cash in his chips.

The concern with Philippe Laffont’s persistent selling spanning eight quarters is there may be more than profit-taking on his mind.

For instance, while the addressable opportunity for AI is sky-high, historical precedent shows that every next-big-thing trend for three decades has endured a bubble-bursting event early in its expansion. Investors have a tendency to overhype the utility and early stage adoption rates of new technologies, which eventually leads to these lofty expectations not being met. No company has been a more direct beneficiary of the evolution of AI than Nvidia, which suggests it would potentially be the hardest hit if the AI bubble were to burst.

Another possible consideration for Philippe Laffont is growing competition in the AI-GPU space. Make no mistake about it, Nvidia’s Hopper (H100) and Blackwell GPUs are at the top of the pedestal, in terms of compute ability. But this doesn’t mean Hopper and Blackwell won’t endure headwinds in the coming quarters and years.

Specifically, internal competition could prove to be a thorn in Nvidia’s side. Many of its leading customers by net sales are developing AI-GPUs and solutions for their data centers. Even though these chips are slower than Nvidia’s and they pose no external competitive threat, they’re considerably cheaper, more readily accessible, and capable of taking up valuable data-center real estate. In short, these chips could crush Nvidia’s pristine pricing power and gross margin.

Nvidia’s valuation is worrisome, as well. Historically, megacap companies have peaked with price-to-sales (P/S) ratios of roughly 30 to 40. Nvidia is tipping the scales at a P/S ratio of more than 30, as of the closing bell on Aug. 11.

Image source: Getty Images.

Billionaire Philippe Laffont can’t stop buying this cash-rich AI stock

On the other end of the spectrum is a historically cheap and cash-rich artificial intelligence stock that Coatue Management’s billionaire chief can’t stop buying. I’m talking about China-based Alibaba Group (BABA 3.73%).

When 2024 came to a close, Alibaba was a relatively forgettable holding in Coatue’s portfolio, with just 192,728 shares held. But during the first quarter, Laffont came close to 20Xing this stake to 3,801,703 shares, based on the filed 13F.

While Alibaba’s growth ambitions very much rely on AI, this isn’t the company’s foundational operating segment responsible for most of its cash flow. Alibaba laid its roots through its e-commerce operations in China.

Whereas online retail sales have matured in the U.S., a burgeoning middle class in the world’s No. 2 economy by gross domestic product can generate high-octane e-commerce sales growth for the foreseeable future. Based on an analysis from DBS Treasures, Taobao and Tmall combine to account for a 41% share of China’s e-commerce space. These platforms should have little issue continuing to generate bountiful cash flow that Alibaba can redirect to faster-growing and/or higher-margin initiatives.

However, e-commerce isn’t the only arena that Alibaba Group is leading. According to estimates from tech analysis firm Canalys, Alibaba Cloud reined in 33% of Mainland China’s cloud infrastructure service spending during the first quarter, which was nearly double the 18% share Huawei Cloud earned as the No. 2 cloud infrastructure services provider.

Alibaba is aggressively incorporating generative AI solutions into its cloud platform and giving its clients access to the tools needed to build and train large language models. The expectation is that these AI solutions will enhance demand (and margins) for Alibaba Cloud.

Something else that’s likely attracted Laffont to Alibaba is the company’s capital-return program. It closed out fiscal 2025 (ended March 31) with $51.6 billion in cash, cash equivalents, and short-term investments, along with $7.4 billion in equity securities and $6 billion in restricted cash. When combined with the cash flow being generated from Alibaba’s numerous operating segments, there’s more than enough capital available for share repurchases and dividends.

The proverbial cherry on the sundae is that Alibaba Group stock is historically inexpensive at an estimated 11 times forward-year earnings. This is modestly lower than its average forward price-to-earnings (P/E) ratio over the past half-decade, and it stands out amid a historically pricey stock market.

Bitcoin mining company Bitfarms has announced a share buyback program, authorizing the repurchase of up to 49.9 million common shares, or 10% of its public float, over the next 12 months. 

The Toronto Stock Exchange (TSX) approved the buyback program, and covers repurchases on both the TSX and Nasdaq, according to an announcement on Tuesday. The company’s shares on Nasdaq closed up 16.8%.

The daily purchase limit on TSX is capped at 494,918 shares, or 25% of the average daily trading volume for the past six months. On the Nasdaq, total repurchases cannot exceed 5% of outstanding shares over the program period.

The company will pay market price for the shares during the buyback period, which begins July 28 2025 and ends July 27, 2026. All shares repurchased will be canceled, reducing the total number of outstanding shares and potentially increasing the value of shares still held by investors.

CEO Ben Gagnon said the move reflects confidence in Bitfarms’ business and signals that its stock is undervalued. He highlighted the company’s push into high-performance computing (HPC) and AI data centers, pointing to Bitfarms’ energy portfolio in Pennsylvania as a growth driver.

Founded in 2017, Bitfarms operates 15 Bitcoin mining data centers across the US, Canada, Argentina, and Paraguay. The company trades under the ticker BITF on both the TSX and Nasdaq.

Related: Bitcoin’s quantum countdown has already begun, Naoris CEO says

Bitfarms rebrands itself as an AI and HPC company

News of the share buyback comes as Bitfarms pivots from a Bitcoin mining company to power AI applications. It is also trying to hedge against potential trade wars by expanding in the United States. 

The pivot has become popular for mining companies, which already have the hardware, power and cooling systems needed for HPC, since the 2024 Bitcoin halving reduced profits. In March, a Coin Metrics report noted that Bitcoin miners are increasingly turning to AI data center hosting to boost revenue and make better use of their existing infrastructure.

In a financial report released in the first quarter of 2025, Bitfarms reported a $36 million net loss, compared to a $6 million net loss in Q1 2024. It also reported a gross profit margin decline to 63% from 43% year-over-year, signaling the Bitcoin halving’s effects on miners’ profits.

The report also shared that Bitfarms secured a $300 million credit line from Macquarie to expand an HPC facility in Pennsylvania, and sold its Paraguay mining site to Hive Digital for $85 million.

Gagnon said, “During the quarter, we executed across several key areas in our strategic pivot to the US and HPC.”

In 2025, Bitfarm mined 693 BTC at an average direct cost of production per BTC of $47,800

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