Call options 101

Stock options give investors the right to buy or sell a stock at an agreed-upon price and date

There are two types of options: calls, which are bets that a stock will rise (or not rise past a certain point), and puts, bets that a stock will fall (or not fall past a specific level). While stock options give investors the right to do these trades, they do not obligate buyers to follow through with them—sellers, on the other hand, must perform the option if it is exercised

A margin call is a way for traders to pay off debts by selling a security before they may be ready to do so.

Futures contracts—which are agreements to buy or sell a standardized asset at a specific future time—are the primary way commodities are bought and sold.

A 'position' in financial markets refers to the amount of a security or asset that an investor owns or sells short

A "long" position gains from an increase in a security's price, whereas a "short" position profits from a price drop. This article includes a detailed explanation of the term "position" as it relates to investing and financial markets.

Futures contracts are agreements to buy or sell a standardized asset at a specific future time

When it comes to commodity trading, these legally binding agreements tend to operate on a monthly basis. Futures contracts are typically traded on futures exchanges, like those operated by CME Group and the Intercontinental Exchange.

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.

What is a 401(k)?

Should you get a 401(k)? To make sense of this obscure piece of tax code, here’s a beginner’s guide to one of the more common forms of retirement savings in the US. Learn the history of the 401(k), how to sign up for one, the different types, and more in this well-organized and concise explainer from Investopedia.

A cost basis is an asset's purchase price after accounting for certain other factors

If you bought a share for $5 and sold it for $140, your capital gain would be $135...on paper, at least. In reality, the math is fuzzier. Capital gains are actually the difference between the sale price of the asset and your cost basis.

Over-the-counter markets are used to bypass traditional exchanges while trading

Commodities are regularly traded via OTC markets so that buyers and sellers can bypass central exchanges and negotiate terms more directly. Before the advent of formal exchanges, most assets were traded OTC.

The 'commodities' investment category includes livestock, oil, wheat, and more

Commodities traders look at all of these things as assets, placing short-, medium-, and long-term wagers on how much each is really worth. Commodities are valuable in part due to how essential they are in creating most of the world's marketable goods.

Visualize stock market's volatility between 2017 and 2025.

Watch Selena Gomez explain collateralized debt obligations in a clip from 'The Big Short.'

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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.

Learn about CD ladders, the investing strategy in which one buys multiple CDs with different maturity dates to capitalize on high interest rates with longer-term CDs while keeping liquidity with shorter-term CDs.

Contract prices on prediction markets are generally interpreted as implied probabilities

For example, if a contract trading is at $0.65, that could be read as the market assigning a 65% probability to that event occurring. The most common format for prediction markets is winner-take-all: The contract settles at $1 if the event occurs, or $0 if it doesn't.

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

Use a prediction market profit or loss calculator

In order to calculate how much someone would make from a specific trade on a prediction market, this calculator asks for the purchase price of a given "yes" or "no" prediction, the number of contracts the trader plans to purchase, and more.

Compounding, explained

During conversations about personal finance, the term "compounding" gets thrown around—but not everyone understands how compound interest and compound returns work. Broadly speaking, compounding is what happens when you not only earn returns or interest on your original investment, but also on the accumulated returns or interest you receive over time. This article explains how both of these processes function, and what compounding could mean for your wallet.

There are three main ways to start investing in the bond market

Invest in the boind market through a brokerage, mutual fund or ETF, or the US government. Each has different steps and terms to follow, from starting rates to opening specific accounts. Some bonds are relatively easy to purchase, but the process differs depending on the type of bond you want.

How to put on a hedge

These days, hedging your portfolio isn’t just for hedge fund managers. An explainer from Robinhood delves into what a hedged position actually is, why traders put on hedges, and how you, too, can work to guard your holdings against a market downturn. The idea is to derive gains from your portfolio when markets are trending up, down, or sideways.

Shorting is a high-risk and expensive investment strategy that hedge funds specialize in

Most investors buy stocks with the expectation that those stocks will be worth more tomorrow than they are today. Short selling, known as “shorting,” a stock is the opposite: The investor is betting the stock will drop in value.

About 98% of companies offering employees a 401(k) plan match employee contributions

Broadly speaking, an employer 401(k) match means that if you invest money into your 401(k), your employer will put cash in, too. But these programs are often fairly nuanced.

A guide to the homebuying process

From searching for the home itself to writing an offer letter to closing on the home, there are specific steps involved in becoming a homeowner. This checklist from a Tennessee real estate broker provides a visual outlining the basic steps of the process.

'Buying the dip' refers to purchasing stocks or ETFs after a price decline in anticipation of a rebound

Some investors see it as getting a discount before the market recovers and the temporary declines turn into gains.

Certificates of deposit are investment vehicles that earn interest on a fixed sum of money over a set term

CDs come in varying term lengths, from three- or six-month commitments to decadelong terms. Typically, the longer the term, the higher the interest rate.

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

Share classes refer to specific types of company stock that are distinguished by the rights they grant, such as voting power and dividend access.

401(k) is a section of the US tax code

How did 401(k) plans get their name? Check out the 401(k) section (and subsection) of the US tax code made famous by benefits consultant Ted Benna. Tap into your inner accountant and check out the now-famous portion of the dense, 10,000-section tome that is the Internal Revenue Code.

A ‘rent vs. buy’ financial calculator

The New York Times built a continuously updated financial calculator to help potential homebuyers figure out which makes more sense given their individual situation: buying or renting a home. It takes into account how long someone plans to own the home for, mortgage rates, and more.

The cryptocurrency equivalent of going public

An initial coin offering (ICO) is cryptocurrency's version of an initial public offering (IPO). Similar to the way a company offers shares on the stock market for the first time, ICOs occur when a cryptocurrency company seeks to raise funding for a new coin, app, or service. If you're entering the field, get the details on how it all works.

Investors need a 'margin account' to short sell stock

Margin accounts are leveraged accounts through brokerage firms that allow investors to make trades without the full amount of capital on hand. Similar to a secured loan, margin accounts often require some form of collateral and typically have a cap on how much investors can borrow. However, trading with a margin account is much riskier than a traditional investment account. Fees and charged interest are due on margin accounts, regardless of trade performance, meaning it's possible for investors to lose more money than just their initial investment.

Election 101 podcast

What’s actually at stake when someone casts their vote in a US election? CNN’s “Election 101” podcast series provides ten episodes summarizing some of the basics of democratic elections. The ins and outs of voting are highlighted in 15-minute episodes on voter registration and voting by mail. Additional segments highlight how the electoral system works, how ballots are counted, the Electoral College, why it takes so long to get election results, and more.

Spot markets are where commodities intended for relatively immediate delivery are traded

Spot markets are where physical securities are exchanged for cash. Also known as cash markets or physical markets, the trades are relatively immediate—both parties agree to an immediate transfer. Currencies and securities can also be traded on spot markets.

Investing in bonds comes with a few risks

Think: changes in interest rates that impact the bond’s value, or a bond issuer completely defaulting on a loan. There are steps investors can take to lower their initial and future risk when investing in the bond market, such as checking a company's bond rating before investing.

A short squeeze happens when short sellers increase stock prices by buying shares back quickly

When short sellers realize their positions may be incorrect—usually triggered by increasing share prices—they often try to quickly buy back their shares in order to minimize their total losses. When this happens on a large scale, that buying activity can drastically increase to represent the seemingly high demand for that stock. The result is called a "short squeeze," which refers to short sellers literally being squeezed out of their positions by rising prices.

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

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.

Smart tips for making the most of your 401(k)

There’s a lot of advice about handling a 401(k), but it can be mired in disclaimers and legalese. Come prepared to your financial advisor or accountant by watching this informative take on how to properly use a 401(k), from consolidating plans to some of the most common errors.

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.

Commodity traders are most commonly 'hedgers' or 'speculators'

While hedgers often produce and consume physical commodities (like corn, copper, or natural gas) and use the markets to manage the price risk for those commodities, speculators provide liquidity by betting on commodity price changes.

The stock market, explained in 3 minutes

The stock market consists of a set of exchanges and other venues where shares of public companies are bought and sold. The Nasdaq and the New York Stock Exchange are two of the most well-known exchanges in the US, while major exchanges also operate around the world, including in Tokyo, Shanghai, London, and São Paulo.

While day trading has risen in popularity in recent years, the SEC warns it is a speculative strategy that can cause big losses

A day trader is anyone who buys and sells a stock within the same trading day. They quickly move in and out of the market to try and profit. Some day traders are professionals, while others are retail investors.

Pioneered by JPMorgan, credit default swaps are a form of financial derivatives that act as insurance policies for banks issuing assets created with risky loans.

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Mortgages are loans used to buy property

A mortgage is a loan used to buy property, like a house. Borrowers typically put down a percentage of the cost of the home, and the amount left over is financed through a lender, like a bank.

Dow Theory laid the groundwork for modern market analysis

Developed by Charles Dow in the late 19th century, Dow Theory argued that markets move in trends. Its principles—confirmation, trends and volume—still influence technical analysis today.

Master the banking basics

Before deciding on a credit union, it’s important that you understand the basics. That way you can know exactly what’s happening with your hard-earned money behind the scenes. Flip through these flashcards to make sure you understand key terms like “deposit” and “checking account.” Then, you can read up on top banking products and start to find a credit union that works for you. Click here, then scroll down the page to find the cards.

Convertible notes represent loans that startups owe investors

In the second part of a two-part series, convertible notes are explained to be a tool angel investors use to ensure they see a return on their investment in a startup.

What is buy now, pay later?

The buy now, pay later industry allows consumers to buy something immediately and pay in installments, typically without the need for applications or credit scores associated with credit cards. BNPL has boomed in the last decade, led by fintech companies Affirm, Klarna, and Afterpay, which have targeted young adults. Some critics say BNPL is a reinvented version of payday loans that allow borrowers easy access to cash with relatively few barriers.

The bond market is where bonds and other debt securities are traded

Bonds are fixed-income investments allowing individuals to lend a specific amount of money to a large entity, like a government or corporation, for a set amount of time in return for interest paid out over the life of the loan. The bond market is widely considered a key economic barometer.

What are smart contracts?

Smart contracts are potentially one of the most useful tools associated with blockchain, and they can enable the transfer of everything from Bitcoin and fiat currency to goods transported around the world. Here’s what they do and why they’re likely to gain traction.

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.