Use a prediction market profit or loss calculator

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.

The prices on prediction markets reflect how the collective forecasts future outcomes

On prediction markets, bettors bid up or down the price of contracts based on what they expect an event's outcome to be. Bettors bid up prices when they think an event is more likely to occur than the current contract price shows, so they buy the contracts, pushing the price higher. They bid down prices by selling these contracts when they believe an event is less likely to occur, driving the price down due to supply and demand.

Prediction market Kalshi's cofounders are former Wall Street traders

Kalshi's CEO Tarek Mansour ​​has described prediction markets as similar to the stock market—except instead of buying and selling shares of companies, users buy and sell "yes" or "no" on whether an event is going to happen or not.

How prediction markets differ from sportsbooks matters for regulation

There are a number of differences and similarities between sportsbooks and prediction markets, despite both allowing people to bet on outcomes for sports-related events. For instance, prediction markets typically earn revenue through transaction fees rather than taking directional exposure to outcomes.

Donald Trump's Truth Social social media platform is launching a prediction market

Named "Truth Predict," the cryptocurrency-based prediction market will allow users of the Truth Social social media platform to place crypto bets on the outcome of certain events (think: sports games, the economy, and political races). Truth Social is primarily owned by President Donald Trump and his family.

Play a game that reveals if investors with a crystal ball make better trades

The "crystal ball" game reveals how well you would do trading stocks and bonds if you could see the front page of the Wall Street Journal one day in advance.

Calculate creator economy platform costs

The creator economy continues to be an attractive way to earn money for many people. While many platforms exist to help creators monetize their work, each has different feature sets and pricing models. This calculator helps workers decide which platform works best for them.

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.

How much money you'd have now if you bought bitcoin years ago

Do you ever wonder how much money you'd have now if you bought bitcoin in 2019? 2018? 2017? This calculator provides the answer. Plug in the amount of bitcoin you would have purchased, plus the year and the currency.

Prediction markets have their own lingo that's an amalgamation of Gen Z and Gen Alpha slang

For instance, if you've been out-maneuvered by another trader, you've been "mogged." A "rulescuck" is someone who is a stickler for betting market rules and may try to win on a technicality.

An annuity income calculator

This interactive calculator lets users estimate how much money they can expect in their annuity payouts, depending on factors such as how much they invest and how long they expect to be paid. It also shows how the principal will deplete over time.

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.

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.

The CME FedWatch Tool predicts the likelihood of future rate changes

It's based on federal fund futures contract prices. At a Fed meeting in July 2024, for instance, Chair Jerome Powell once again decided not to lower rates, though he said cuts could be on the table in September.

It's tough to measure just how much the global commodities market is worth

That's partly because of all the different ways and places commodities are traded—such as futures exchanges, spot markets, and over-the-counter deals. Additionally, the same commodity can be traded multiple times in different markets, making it easy to risk duplicating trade values in calculations.

An MBA return on investment calculator

On average, the total investment for an MBA degree is more than $200K, which includes tuition, living expenses, lost income, and potential interest on student loans. This calculator can help you figure out your own future MBA degree’s estimated ROI based on your unique situation.

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.

How to answer questions about salary expectations in an interview

"What are your salary expectations?" is among the toughest questions to answer in a job interview. According to experts, if you go too low you might cost yourself money in the long run, but if you go too high, you could price yourself out of a job. This video offers tips on how to answer this question based on your situation. Watch it here.

Calculate your chance of success for IVF treatments

The efficacy of in vitro fertilization procedures varies widely based on age, health history, genetics, and more. This CDC calculator provides an estimate of success rates based on your personal information, relying on thousands of reported outcomes across the US.

In 2008, the 'Big Short' mastermind Michael Burry made more than $700M

Before the 2008 housing crisis, Burry used credit default swaps to bet against subprime mortgage-backed securities that fueled the 2008 housing crisis. His firm made more than $700M for its investors, and Burry made more than $100M in personal profits.

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.

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.

'Scorigami' attempts to chart every NFL game score

The rules of the sport set bounds on possible final outcomes, so this adept statistician mined some fascinating takeaways. Some scores are impossible (like 5 to 1) and some are more common (like 20-17, occurring over 300 times since 1944). Watch for a deluge of numbers.

The difference between cash flow and profit, explained

While cash flow is the net balance of cash moving in and out of a business, profit is the remaining balance after subtracting a business's operating expenses from its revenue.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

Tax-loss harvesting is a way that some people attempt to trim their tax bills

Specifically, tax-loss harvesting is a way to lower your tax bill by offsetting investment gains with losses. It can be tricky to practice and comes with a few important rules, so working with an expert may be your best bet before Tax Day.

Product-market fit is achieved when a product strongly satisfies market demand

Some experts argue that product-market fit is what separates the most successful startups from those that never get off the ground. While there isn’t an official rule book for how to optimize and test product-market fit, the CEO of email startup Superhuman has attempted to provide one with a specific four-step process.

The costs and fees for a payday loan include a 'finance charge'

Payday lenders typically make money via finance charges, a percentage or dollar amount that the borrower owes the lender per $100 borrowed. While the finance charge can range from $10 to $30 for every $100 borrowed, this would equate to an annual percentage rate of almost 400 percent for a two-week loan.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

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.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

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

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 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%.

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.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

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.

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.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.

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.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

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

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

Visualize how CRISPR-Cas9—a type of immune system used by single-celled organisms to attack invasive viruses—targets and makes precise changes to a gene's DNA.

Doctors differentiate between a phobia and fear by asking patients whether their fear interferes with their day-to-day activities.

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.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.