The Vanguard Total Stock Market Index, was worth roughly $1.47T as of February 2024

Mutual funds are categorized as stock, bond, money market, and target-date funds

Each category has even more varieties of funds to choose from, but the biggest differences between these groups are the types of securities they invest in, their risks, returns, and entrance requirements.

Read how Vanguard's founder used the S&P 500 to revolutionize retail investing

John Bogle, the founder of The Vanguard Group, created a fund that tracked the S&P 500 in 1976. That fund created an unprecedented opportunity for individual retail investors, brought down fees across the board, and popularized the belief that passive, low-cost index fund investments would outperform actively managed portfolios long-term.

Mutual funds in seven broad categories averaged a 13.1% annual return in 2023

That 13.1% figure can help set expectations for how mutual funds will perform in 2024 and 2025, past performance does not guarantee future results.

The price of a mutual fund is based on its net asset value (or NAV)

The NAV is determined by the fund’s overall value minus its debts. A mutual fund’s debt is defined as any of its outstanding (or unsold) shares.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

See the top 100 ETFs by trading volume

This list grabs the top 100 by trading volume, or the average number of shares that have traded hands over a 3-month period. Top of the list is a semiconductor-focused fund from Direxion, followed by other tech-centric offerings.

The median trust fund contains roughly $285K

That’s according to data from the US Federal Reserve. There isn’t a specific net worth that can help determine whether or not someone needs a trust—but contrary to popular belief, trust funds can be great estate planning tools, even for people who aren’t ultra-wealthy.

Mutual funds were first created and sold in the US in 1924

Mutual funds were created in 1924, became popular in the '80s and '90s when investors saw a better payoff. Since then, they’ve evolved to be one of the most popular investment options today.

Mapping the world's 25 largest stock exchanges

Totaling a market capitalization of $106T (as of 2023), this map identifies the major stock exchanges worldwide on a map, ranking them by total market value. Nearly half of that value is located in the Americas.

The world’s top 10 hedge funds

The world’s top 10 hedge funds based on total assets under management include Ray Dalio’s Bridgewater Associates and Citadel.

The alternative investments industry is expected to grow significantly in the coming years

More specifically, as of 2024, the alternative investments industry was expected to grow to more than $24T in assets in 2028—up from roughly $15T in 2022.

A 'large-cap' company has a market capitalization of more than $10B

The S&P 500 is primarily composed of large-cap companies. The idea is that the index provides a big-picture view of the economy by assessing the performance of many of the largest public companies across different industries. The median market capitalization of companies listed on the S&P 500 is around $40B.

Many of the top companies in the US by market cap began as tech startups

Combined, the top seven companies by market cap in the US as of December 2024—Apple, Nvidia, Microsoft, Alphabet, Amazon, Meta, and Tesla—were worth more than $16T at the time.

90 percent of active managers of large public funds underperform

High fees tend to eat away at whatever edge professional managers accrue, resulting in most such funds performing worse than their underlying benchmark indexes like the S&P 500.

The world's largest stablecoins by market cap

The largest stablecoin by market cap, Tether (USDT), as well as the second largest, USDC, are both pegged to the US dollar. As of April 2026, Tether had a roughly $184B market cap.

Look inside a retail investor's portfolio

Online investing platform eToro conducted a survey of retail investors in June 2024. It explored what assets they held and what types of stocks they liked to purchase. The most commonly held asset was cash, with 76% of retail investors holding cash in their portfolios. The next most popular asset was domestic stocks, with 49% of investors.

One $100 investment in the Medallion Fund skyrockets over time

The Medallion Fund, the famously secretive quant fund that invests billions of dollars for the partners and employees of a single firm with a legendary track record, has trounced the market for more than three decades. While its results are an extreme outlier, this visualization showcases the power of compound interest.

BlackRock says investor demand and improvements in underlying fund technology have supercharged ETF availability in 2025

Investors are likely most familiar with ETFs that invest in an index or other grouping of stocks. However, BlackRock breaks down a wide variety of options, including commodity ETFs, currency ETFs, and bond ETFs.

Microsoft was the most popular stock in hedge fund portfolios as of Q1 2024

874 hedge funds held Microsoft stock at the time. This infographic shows more of the most popular stocks in hedge fund portfolios.

Investors collectively own $28T in US Treasury securities

The 10-year Treasury yield is a central measure of the health of the economy, shaping how much both the government pays on its debt and the cost of borrowing for the private sector. This explainer provides stats and explainers on the important metric.

Facts and figures on the largest credit unions

As of early 2024, credit unions had $2.31T in assets under management and were growing exponentially. Some of the biggest players limit access to military personnel, residents of specific states, and those with active religious affiliations. If you want to bank with some of the top names in the US, this list will help you check to see if you qualify.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

American billionaires' wealth, visualized

America's top 20 billionaires have a combined wealth of $2.7T as of 2024. That's more than Russia's annual GDP. But some billionaires, like Elon Musk, hold a greater share of that $2.7T number than others. To see just how much money each of these 20 billionaires have in comparison to the others in the group, check out this data visualization.

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.

The stock market's volatility between 2017 and 2025, visualized

The CBOE Volatility Index measures expected stock market volatility using the prices of options on the S&P 500. When traders expect large moves in the market, options prices tend to rise as more options are purchased to bet on the direction of the move.

Because of their size, sovereign wealth funds create anxiety about foreign undermining of financial systems

Across the board, sovereign wealth funds have an immense amount of capital, and, therefore, influence in global financial markets. Critics argue that this influence could enable a foreign country to harm another country's financial market by either investing adversely in competitive markets or by withholding critical capital.

Value investing seeks to buy stocks trading below their intrinsic worth

Value investing specifically focuses on fundamentals like earnings, assets, and price-to-earnings ratios. In contrast, growth investing targets companies with rapid future potential, often trading at higher valuations. Both strategies offer unique paths to returns.

The Dow Divisor keeps the index consistent through time

To adjust for stock splits, mergers, and replacements, the DJIA uses a figure called the Dow Divisor. Originally valued around 12 in 1896, and now less than one, it ensures today’s index levels remain comparable with the past.

Venture capital is a form of funding provided to early-stage companies with high growth potential, typically in exchange for an equity (or ownership) stake

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

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

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.

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

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.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

Art theft is the third-largest source of criminal revenues worldwide, thanks in part to the subjective nature of valuing a work of art.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

View the ten deadliest tornadoes in US history.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

How fusion—which releases energy when two lighter atoms combine to form a heavier atom—differs from fission

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

Three Ebola species are responsible for most large outbreaks of the disease, yet the only approved Ebola vaccine is known to work against just one of them.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.