An S-1 reveals financial and other details to the public, often for the first time, when filing for an IPO

Airbnb’s S-1 in 2020 revealed how it weathered the pandemic and its financials

An S-1 or prospectus is a registration form filed with the US Securities and Exchange Commission when a company wants to go public. They can be pretty juicy documents, as S-1s can reveal previously private details about companies to the public, often for the first time.

An initial public offering is how a private company becomes public

This milestone requires plenty of preparation, starting with the SEC's S-1 registration, revealing key details about the company's finances and strategy. Investment bankers set valuations, secure long-term investors, and finalize share pricing before the public launch. IPOs provide companies with significant capital, but also demand transparency and invite public scrutiny.

A list of public companies' filings

To go public, a company has to file a registration statement with the US Securities and Exchange Commission, also known as the SEC. You can find these filings on the SEC’s website to learn more about a company’s share pricing before its IPO date.

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.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company

Those revelations include the company's 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.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public

A prospectus typically contains information about the company's operations, including details about its management team and their compensation, financial statements, how it intends to use any capital raised by the IPO, and more. While these documents can be dense and lengthy, experts say that some of the most important sections of a prospectus for investors to look at include the risk factors section and the use of proceeds section.

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.

WeWork filed its first S-1 in 2019

When WeWork prepared to file for its initial public offering in 2019, its S-1 revealed its poor financial state to the public.

Smaller companies’ IPO information can be hard to track down

This calendar keeps you updated on the current IPO dates and pricing from different companies. You can search for upcoming and future IPO dates and see which companies withdrew from the IPO process.

Special-purpose acquisition companies let companies skirt the IPO process

A video explains how private companies have taken advantage of this loophole, why investing in these companies isn’t always a good idea, and how blank-check companies (as they’re commonly called) work.

Some companies like to make their IPO day antics unique

An article details some of the wildest bell-ringing day stunts in recent history, from Clifford the Big Red Dog ringing the opening bell to one company's employees roasting marshmallows in a campfire on Wall Street as it went public.

Robinhood's mission of democratizing finance included its IPO

In 2021, investing app Robinhood went public—and decided to go about its IPO process differently. Unlike other companies, it opened up its IPO for the general public to purchase right away. A podcast episode explains what made Robinhood's IPO so unique prior to its launch date.

Why the SEC was started

The Securities and Exchange Commission was created during the Great Depression to restore public trust in financial markets after the 1929 crash. Established in 1934, it enforces transparency, investigates fraud, and protects investors by requiring companies to disclose accurate information and holding violators accountable.

Seed funding is often the first round of capital that a startup raises

Early-stage startups often try to secure seed funding from investors in order to take their idea from concept to reality.

SAFE is a financial tool that stands for ‘simple agreement for future equity’

In the first part of a two-part series, SAFEs are explained as a way angel investors safeguard their investment in a startup. These agreements outline equity expectations.

2023's worst performing US IPOs

While an IPO is a huge milestone, it isn't always a total success in the long-term. This data visualization shows some of the worst-performing IPOs of 2023, based on their percentage returns at the end of the year, It includes an NFT gaming company and a Chinese EV battery company.

S&P Global, the company that makes the S&P 500, is listed on the S&P 500

When the S&P 500 index was released in 1957, it was helpful for investors, but not necessarily profitable. S&P Global now makes more than $1B a year just from selling its index data. Alongside its other services, like credit ratings, S&P Global makes more than $14B a year.

Insider trading is the practice of trading a company's securities based on material, nonpublic information

"Material, nonpublic" information is essentially any undisclosed information that could have a substantial impact on an investor's decision to trade a security. While the practice is strictly prohibited on the stock market, it's now being discussed regarding less-regulated but increasingly popular prediction markets.

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.

Accredited investors are people or other entities allowed to participate in investments that aren’t registered with the SEC

The accreditation is meant to protect retail investors from potential losses. Financial professionals with Series 7, 65, or 82 licenses qualify, but so do individuals with over $1M in net worth.

Series I bonds are a form of government savings bonds created to shield your investments from inflation

Specifically, I bonds earn interest from both a fixed rate and an inflation rate. This article explains who might benefit from investing in I Bonds—for instance, people seeking to invest savings they do not need to access in the near future.

The United States currently ranks number one for countries that enable the most financial secrecy

Financial secrecy refers to complex systems that make it easy for people and companies to hide assets. High levels of financial secrecy are associated with illegal activity, like drug trafficking and money laundering. Lax regulations around reporting who owns trusts, real estate, and businesses impact the United States' global financial secrecy ranking.

Amazon sends its first-ever letter to shareholders every year

The first letter to Amazon’s shareholders, written by founder and then-CEO Jeff Bezos in 1997, is a key part of the Amazon story—laying out the company’s long-term approach to the business and several of its core operating values. Bezos emphasizes, for example, Amazon’s plan to start with a bookstore but to evolve into a much larger ecosystem.

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.

The federal government offers billions in student aid each year in the form of scholarships, grants, loans, and more

The very first—and necessary—step is to fill out a federal application to get your information into the system. Known as the Free Application for Federal Student Aid, or FAFSA, this key form must be completed by Oct. 1 for the following academic year.

View US solar energy industry trends and trajectories, tracked by SEIA

The Solar Energy Industries Association provides charts summarizing the state of solar energy in the US, including cumulative solar installations, solar jobs, photovoltaic pricing and deployment, and inflation and supply chain constraints within the market.

Written by 26 sovereign wealth funds in 2008, the 'Santiago Principles' provide generally accepted principles for fund management and governance

Sovereign wealth funds are not regulated, but many of the funds voluntarily follow the Santiago Principles (though, to a varying extent). Some of the principles include transparent financial objectives, clear accountability structures, regular performance reviews, and annual auditing.

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

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.

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.

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

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

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

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

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.

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

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.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

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.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

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

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

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.

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

Shooting stars, or meteors, are fragments of asteroids and comets that burn up as they enter Earth's atmosphere, creating streaks in the sky called meteor showers.

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

See how Ebola tore through Guinea, Sierra Leone, and Liberia in 2014-2016.