Companies often use different share classes, like Class A or Class B, to structure ownership

Shares are parts of a stock that represent ownership of a company

Shares are traded on the stock market. Once you buy a single share of a company, you are considered a shareholder of that company and may have certain rights as a partial owner, such as voting on business decisions.

Dual-class stock structures separate equity and decision-making authority

In the past few decades, dual-class stock structures have become an increasingly popular way for companies to raise capital in public markets without allocating traditional shareholder voting rights. Meta, Estée Lauder, and The New York Times are companies that are famously dual-class.

Mutual fund share classes are rankings of different types of services for investors

The more services an investor has, the more expensive of a class they’re in. While investors are all technically investing in the same securities with the same investment strategy, different classes dictate extra services and attention given to investors, which can seriously impact an investor’s returns.

What's the difference between a stock and a share?

While the words "stock" and "share" are often used interchangeably in casual conversation, they have different meanings. For instance, "stock" is more general, whereas "share" is more precise.

Open-end and closed-end funds differ in how they create and distribute shares

Open-end funds are able to create new shares on a daily basis, while closed-end funds have a set number of shares. This impacts the way shares are traded on the open market, and the way they’re priced.

Some private credit funds trade on the stock market

These funds, which trade at market prices, are called "public BDCs," which stands for "business development companies." For instance, the global alternative investment manager Ares Management Corp. has a public BDC.

Securities is a term used to describe different types of investments

Not every type of investment qualifies as a security (like property or gold). Securities fall under four main categories (equity, debt, derivative, and hybrid) that serve different functions in the market.

Companies sometimes issue corporate bonds to raise capital

These bonds offer investors regular interest payments in addition to the return of the principal amount at maturity. They allow companies to raise capital without losing ownership.

Breaking down the main classes of intellectual property: trademark vs. copyright vs. patent

Trademarks, copyrights, and patents are all intellectual property classifications that give exclusive ownership of ideas and concepts to individuals or businesses. Patents usually refer to innovative products or processes, copyrights are centered around the right to reproduce content, and trademarks usually involve branding elements, like names, logos, and distinct product elements.

Chapter 7 and Chapter 11 filings can impact common stockholders

Publicly traded companies don’t file for bankruptcy out of nowhere—there are typically warning signs in a stock’s performance, quarterly earnings calls, and US Securities and Exchange Commission filings.

Activist investors use large ownership positions to influence companies

By holding large ownership positions, which often come with leveraged access to a company's board or the ability to force a shareholder vote, activist shareholders can change a company's corporate governance, leadership, and overall direction. Critics argue that activist shareholders hurt companies in the long term by prioritizing short-term higher shareholder returns over sustainability and growth efforts.

Warren Buffett turned a struggling textile mill into Berkshire Hathaway

With Class A shares trading at over $700K per share, Berkshire Hathaway's high stock price reflects Buffett's decades of long-term investing, major acquisitions, and a philosophy that has reshaped modern finance.

A direct listing is when a company goes public, listing shares on a stock exchange

A direct listing is when a company goes public, listing its shares on a stock exchange, rather than issuing new shares or raising capital. That means investment banks—traditionally serving as intermediaries—could lose out on some of the profits from these deals as more companies like Spotify opt for direct listings.

Capital assets include investments from stocks to fine jewelry

Capital assets can be classified as property owned and used for personal or investment reasons. If a capital asset grows in value and the holder decides to sell it, their “capital gains” would be roughly the difference between the original purchase price and the amount of money they sold the asset for.

Tranches slice financial products into segments

Specifically, tranches are slices of securities (think: bonds or mortgages) divided by risk and characteristics to attract different investors with a variety of risk tolerances.

40 key stock market terms, explained

Liquidity. Forex. Capitalization. Blue chip stocks. These are just a few pieces of stock market vocabulary most people who don't spend all day on a trading floor might not know. Thankfully, we found a fun infographic that makes it easier to learn what 40 key stock market terms mean and why each of them matters.

Startup founders’ equity becomes diluted as they bring in more investors

When an angel investor funds a company in exchange for equity, startups issue new shares to them, rather than giving them existing shares, and boost the company’s valuation.

Learn more about the four main market structures

In modern economic theory, there are four main market structures. Under each market structure, firms (or businesses) have differing levels of competition and reach different levels of price efficiency based on the consumer's willingness to pay for a product or service.

Both individuals and businesses can establish trusts

Business trusts can allow trustees to manage a beneficiary’s stake in a business, and more. There are many different specific types of business trusts.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

Dow components are chosen by a committee, not a formula

Unlike many indices, the Dow has no strict rules for inclusion. A small committee at S&P Dow Jones Indices uses judgment—favoring companies with strong reputations, steady growth, and broad investor interest.

American local government comes in five distinct forms

Counties, municipalities, townships, special districts, and school districts are each created for a different purpose, operating under different rules, and answerable to the state in different ways. Special districts, the least known of the group, are created for specific purposes, such as transit or fire protection.

401(k) plans and pensions differ in who has control over the investments

With pension plans, a company contributes to an investment fund from which it distributes regular payments to a retired worker until their death. A 401(k) gives the worker control over contributions in a tax-advantaged account.

The complexity of classifying a tree

It may seem obvious to us when we see a tree, but very specific characteristics cause scientists to distinguish trees from other types of plants. This video provides a visual and verbal explanation of distinctions that separate trees from other plants like shrubs or herbs. See a scientific breakdown of these traits.

American Express uses co-branded cards to provide brand-specific perks

Co-branded credit cards are partnerships between a card issuer and another company. Unlike regular credit cards that offer many different kinds of benefits at different companies, co-branded cards tend to only offer perks with the partner company. For example, American Express has a co-branded card with Delta airlines that allows users to earn points specifically towards the Delta rewards program.

How crude oil is split across oil markets based on geographic origin

Brent, West Texas Intermediate, and Dubai are the three crude oil classes and differ in terms of typical refinery uses, density, sulfur content, and suitability for financial benchmarking. Brent, which originates in the North Sea, is traders' go-to benchmark, in part, because it is easily shipped and politically stable, and used to price most of the crude sold internationally.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

Hedge funds, the private investment firms that trade a wide swath of financial assets, make money by imposing steep fees on investors and from the fund's investment performance.

Watch this video that uses Lego bricks to explain how venture capital works.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Play the role of a student in a game where you try to navigate college and remain debt-free, selecting different income levels, high school experience, race, ethnicity, and more.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

Coral polyps reproduce via broadcast spawning, where entire reefs simultaneously release reproductive cells for about one hour, once a year.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

Stars appear to twinkle because turbulence in the motion of molecules in Earth's atmosphere causes light to bend and wiggle rapidly on its way to the surface—a phenomenon called scintillation.

Ebola is a filovirus, meaning it resembles a thread under a microscope, though it sometimes twists and can resemble a bowl of spaghetti.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

Frank Lloyd Wright's houses are historically hard to sell because they're old, subject to local landmark commissions, and often unfashionable

Pure water does not conduct electricity because this flow of energy requires the movement of charged particles, and water is a neutral molecule.