There are more than 300 different thematic ETFs

Explore a giant ETF database

Given that there are more than 3,000 ETFs trading in the US, the list of options for individual investors may be overwhelming. VettaFi provides a database that allows potential investors to sort funds by sector, region, strategy, fund issuers, and more. It tracks nearly 100 funds focused on general technology but just one that focuses on copper mining.

Biotech ETFs allow investors to gain exposure to multiple promising companies in the industry

Biotech ETFs offer a diversified alternative to purchasing an individual biotech stock and gambling on whether an individual company’s clinical trial yields the next blockbuster cancer treatment or an absolute flop. This list of the top biotech ETFs in 2025 can help you learn more about them.

ETFs were first created as an alternative to mutual funds, combining the diversification benefits of a mutual fund with the ability to trade throughout the day on a stock exchange.

Explore a list of the world’s weirdest and wildest ETFs

Whether you’re leaping straight into the future and looking for stocks picked by AI, a sci-fi aficionado who wants to invest in space travel, or a drama enthusiast looking to make money on stock market volatility, the ETF market’s weird corners have something for you.

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.

ETFs are rising in popularity

While less than half of retail investors hold ETFs in their portfolio, this figure is up dramatically in recent years, and experts forecast continued adoption as more options hit the market and total ETF assets under management continue to grow.

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.

A bond ETF lets someone invest in multiple bonds through one single fund

There are risks, there are also major perks to buying a bond ETF, like the ability to purchase bonds on the stock market.

ETFs and mutual funds both pool money into a basket of investments—but the key difference between them is that mutual funds trade just once per day after the market closes, while ETFs trade like stocks throughout the day at fluctuating prices.

Index funds are typically structured as either mutual funds or exchange-traded funds, but investors can manually recreate an index through 'direct indexing.'

The pros of exchange-traded funds include ease of access through brokerage apps and retirement savings accounts

One unexpected perk is that ETFs are typically associated with lower capital gains tax requirements. Read this list to learn more about the benefits of investing in ETFs.

Test your ETF knowledge

A 10-question quiz from the SEC allows investors to test their basic knowledge about exchange-traded funds and their investing counterparts, mutual funds. Here’s a sample question: Is the past performance of a fund a good indicator of future results? (Hint, the answer is no).

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

Explore a step-by-step guide for getting started as a retail investor

Instead of purchasing individual stocks and bonds, new investors may want to start in funds that track an index—like the S&P 500—or that hold a group of themed stocks.

There are monthly dividend ETFs that pay you to hold them

Traditional dividend stocks and funds pay out quarterly, or four times a year. A select group of stocks and funds pay out monthly, putting cash in investors’ hands 12 times a year. These monthly dividend funds are popular because their regular payouts can help keep budgets on track.

There are ETFs that track lawmakers' stock purchases

If you can’t get enough politics in your life, why not invest like a politician? Because members of Congress are required to disclose their stock purchases, you can do just that, and the NANC and KRUZ ETFs make it even easier. NANC, referencing Nancy Pelosi, holds a basket of stocks that Democratic politicians have purchased. KRUZ, referencing Ted Cruz, holds a basket of Republican-held stocks.

Crypto ETFs are driving cryptocurrency adoption

In 2024, the SEC approved ETFs that track the price of bitcoin called spot bitcoin ETFs. These funds have since significantly increased investment inflows into cryptocurrency markets.

Alternative investments can include everything from cryptocurrency to fine art

The financial assets typically fall outside the scope of traditional investments like stocks and bonds, and they’re often intended to diversify investor portfolios.

Alternative investments can be sorted into seven major categories, according to some experts

These categories include real estate, private equity, private debt, hedge funds, collectibles, and more.

People often invest in alternative investments to diversify their portfolios

Because alternatives often have little correlation with traditional investments like stocks and bonds, adding them to a traditional portfolio can reduce its overall risk exposure.

ETFs and mutual funds are both taxed on capital gains and on dividends.

Buffered ETFs are designed to protect investors from market downside while still providing exposure to upside

Investors typically hold them for a defined period before they “reset.” During periods of market volatility, buffered ETFs can seem particularly appealing.

Leveraged ETFs made headlines in 2026 as a boom in single-stock leveraged products tied to AI companies drove volatility and record retail demand.

Investing in mutual funds can give you access to a wide range of securities, such as stocks and bonds, with just a single investment.

Meet the ‘SPY kids’ tied to Wall Street’s first ETF

When SPY became the first ETF to launch in 1993, regulators wanted its issuers to set a termination date. After initially saying the fund would cease to exist in 25 years, its issuers came up with a different strategy. They named 11 children born between 1990 and 1993 and declared that the fund would cease to exist in 2118, or 20 years after the last of the 11 “SPY kids” died. The kicker? According to Bloomberg, none of the children knew they were connected to the fate of this giant fund.

A stock index is a group of companies clustered together, often providing a condensed snapshot of a market segment.

The SPDR S&P 500 ETF is one of the most highly traded funds on the market

State Street, a popular ETF issuer, is responsible for the SPDR S&P 500 ETF. This fund trades under the SPY ticker, and State Street maintains a web page with key facts and figures on SPY. For instance, its expense ratio is 0.0945%, or $9.45 on an initial $10K investment.

Retail investors can get exposure to commodities via various financial vehicles

While retail investors likely won't go out and purchase a bushel of commodity wheat to trade, they can get exposure to the commodities market via commodity ETFs sold on traditional stock exchanges like the NYSE and Nasdaq and other financial vehicles. There are benefits to adding commodities to a retail investor portfolio (such as a hedge against inflation and a typically low correlation with more traditional asset prices), experts caution that commodities are usually volatile investments.

The SEC recently approved bitcoin ETFs in landmark investing decision

In January 2024, the US Securities and Exchange Commission made history when it decided to allow fund issuers to launch bitcoin ETFs. This new class of exchange-traded fund tracks spot bitcoin prices, essentially allowing investors to hold bitcoin without actually having to buy the crypto.

Mutual funds pool money to create larger investment opportunities with higher returns for anyone who initially invests in the fund.

Explore a list of the world's largest mutual funds.

The Dow now tracks 30 major US companies across various industries

Since 1928, the DJIA has included 30 firms. Today's group spans technology, healthcare, and finance—with Apple, Microsoft, JPMorgan Chase, Pfizer, and Coca-Cola among its most recognized components.

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.

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

About 30% of financial advisors opted for fixed and indexed annuities in 2023

An infographic that shows the most common types of investments used by financial advisors with their clients in 2023 also found that nine in 10 advisors used ETFs, and three-quarters invested in cash and cash equivalents.

Retail investors cannot directly invest in private credit funds—but other financial vehicles can offer exposure to the industry

For example, as some US regulations have loosened in recent years, retail investors have begun to get exposure to the private credit market via ETFs that invest in publicly traded financial vehicles with private credit exposure, such as BDCs.

The total cost of owning an ETF is the sum of the holding costs and the transaction costs

Holding costs include things like the expense ratio, or the annual fee that a fund issuer charges. Transaction costs include things like brokerage commissions, or the fee that a broker charges to enact a trade. However, in recent years, most brokers have essentially eliminated commissions on ETF trading.

Visualizing the world's $261T in investable assets

Nearly half of the world's portfolio of stocks and bonds originate in the US. Roughly 1% of all investable assets are in the form of cryptocurrency.

What’s up with the new Texas Stock Exchange?

The two biggest stock exchanges in the U.S. are both based in New York—the New York Stock Exchange and the Nasdaq. But a potential new “Texas Stock Exchange”—which would be based in, you guessed it, Texas—could change that. To find out more about the project, backed by enormous companies such as BlackRock and Citadel, watch this video.

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.

Investors rely on the S&P 500 as a benchmark for the state of the economy

Since the index represents a broad range of diverse industries, it's become a proxy for the market itself and a common benchmark for investors to compare returns and performance patterns against. Generally speaking, when someone says a stock is under- or out-performing the market, that actually means under- or out-performing the S&P 500. The S&P 500 is exchange-agnostic, and includes companies listed on both the NYSE and Nasdaq.

Find out how companies decide which stock exchange to list on

Tech companies often prefer to list on the tech-focused Nasdaq, whereas more traditional organizations opt for the New York Stock Exchange. Sometimes the choice is made partly based on the services an exchange offers a company.

The Nasdaq Composite index includes all of the companies traded on the exchange

This 3,000+ company index stands in contrast to the Nasdaq 100, which only includes 100 of the most influential non-financial companies traded on the exchange. These are the two most commonly used indices for Nasdaq investments.

Real estate investment trusts help give portfolios more exposure to real estate

Also known as a REIT, a real estate investment trust is a type of company that invests in a portfolio of real estate, such as apartment buildings or malls. Investors can buy shares of the REIT to participate in its portfolio’s gains and losses.

The S&P 500, managed by the same company, is another major stock index

Also run by S&P Dow Jones Indices, the S&P 500 tracks 500 large US firms using market-value weighting. Many analysts view it as a more accurate gauge of the American economy.

Cathie Wood is one of the most famous modern figures in ETF investing

Cathie Wood is the fund manager and stock picker behind Ark Invest and its flagship Ark Innovation ETF. Her strategy centers around disruptive technology, and she’s made bold bets on cryptocurrency and companies like Tesla, Robinhood, and Nvidia. Wood has a loyal following of retail investors who watch her daily trades religiously.

Investors can buy three main types of bonds: government, corporate, and municipal

Each type has variations of its bond offerings with different interest rates, loan lengths, maturity dates, and terms. Each type also carries its own risks and rewards.

Millions of Americans will be invested in SpaceX because of the fast-tracked process to list SpaceX on the Nasdaq 100, and, subsequently, the index funds that track it.

The 'Big Three' asset managers—Vanguard, State Street, and BlackRock—collectively manage more than $30T in assets and are the largest shareholders in roughly 88% of all the companies listed on the S&P 500.

Alternative investments have become more popular since the 2008 financial crisis

When the traditional markets crashed during the 2008 financial crisis, many people saw the value of their traditional investments plummet and began to look into alternatives as a result.