Level 1 — Absolute Beginner

OpenAI is a famous technology company. They made ChatGPT. ChatGPT is a computer program that can answer questions and write text.

OpenAI wants to sell shares of its company. When people buy shares, they own a small part of the company. Selling shares for the first time is called an IPO.

Two big banks will help OpenAI. They are Goldman Sachs and Morgan Stanley. The company may be worth one trillion dollars.

The IPO will happen in September 2026. This will be a very important event for the stock market.

IPO

Initial Public Offering - when a company sells its shares to the public for the first time

share

a small part of a company that people can buy or sell

stock market

a place where people buy and sell shares of companies

bank

a business that handles money, loans, and investments

trillion

one million millions - a very large number (1,000,000,000,000)

valuation

how much a company is worth

investor

a person who puts money into a company hoping to make more money later

technology

tools and machines made using science to solve problems

Level 2 — Elementary

OpenAI, the company that created ChatGPT, is preparing to file for an IPO as early as Friday, May 22, 2026. An IPO, or initial public offering, allows a company to sell shares to ordinary people on the stock market for the first time.

Two major banks, Goldman Sachs and Morgan Stanley, will help manage the IPO process. The company plans to file its paperwork confidentially with the U.S. Securities and Exchange Commission. This is a normal first step before a public offering.

OpenAI is currently valued at approximately $852 billion by its private investors. Analysts believe the company's valuation could surpass $1 trillion once the stock begins trading publicly. The IPO is expected to happen in September 2026.

The legal path for the IPO was cleared after a court in California dismissed a lawsuit by Elon Musk against OpenAI and its CEO Sam Altman in May 2026. OpenAI has also raised more than $180 billion from big investors, including Amazon, Nvidia, and SoftBank.

confidentially

in a private and secret way, not made public

Securities and Exchange Commission

the U.S. government agency that regulates the stock market and protects investors

prospectus

a formal document that gives financial details about a company planning an IPO

underwriter

a bank or firm that agrees to sell shares in an IPO and guarantees money will be raised

valuation

an estimate of how much a company is worth

lawsuit

a legal case brought to a court to settle a dispute

CEO

Chief Executive Officer, the top leader of a company

artificial intelligence

computer systems that can perform tasks that normally need human intelligence

Level 3 — Intermediate

OpenAI, the artificial intelligence company behind ChatGPT and GPT-5, is preparing to confidentially file its IPO prospectus with the U.S. Securities and Exchange Commission as early as Friday, May 22, 2026. Goldman Sachs and Morgan Stanley are set to serve as the primary underwriters for the offering, which targets a public stock market debut in September 2026.

With a current private valuation of approximately $852 billion, analysts widely expect OpenAI's market capitalization to surpass $1 trillion when shares begin trading. The company has raised more than $180 billion from investors including Amazon, Nvidia, and SoftBank, making it one of the most heavily funded private companies in history.

The legal landscape for the IPO cleared significantly when a California jury dismissed Elon Musk's breach-of-charitable-trust claims against OpenAI and CEO Sam Altman in May 2026. Prediction markets immediately repriced the odds of an OpenAI IPO sharply higher, with the company given an 83% probability of reaching public markets before rival Anthropic's planned October 2026 listing.

Despite bullish sentiment, some internal tensions have emerged around the deal's timeline. OpenAI's CFO Sarah Friar is reportedly urging a more cautious approach, while CEO Sam Altman is pushing for an aggressive pace. The offering will also compete for investor attention with SpaceX's own Nasdaq debut, targeted for June 12, 2026, at a $1.75 trillion valuation.

market capitalization

the total value of all a company's shares combined, calculated by multiplying share price by number of shares

breach of charitable trust

a legal claim that someone violated their duties to a nonprofit organization

prediction market

a financial platform where people bet on the likelihood of future events

rival

a competitor in the same field or market

CFO

Chief Financial Officer, the company executive responsible for financial decisions

roadshow

a series of meetings where company executives present to potential investors before an IPO

bullish

optimistic about the future performance of a market or investment

bookrunner

the lead bank responsible for organizing and managing an IPO offering

Level 4 — Advanced

OpenAI is poised to submit a confidential draft registration statement to the Securities and Exchange Commission as early as Friday, May 22, 2026, initiating a regulatory clock that, under current SEC practice, affords six months before a mandatory public filing. Goldman Sachs and Morgan Stanley are the bookrunners of record; Lazard and Qatalyst are understood to be advising on deal structure and strategic positioning.

The prospectus is expected to crystallize a valuation in the $900 billion-to-$1.1 trillion range, premised on annualized revenue approaching $100 billion by Q3 2026 as enterprise API consumption and the o3/GPT-5 subscription tier scale rapidly. The company's gross margin profile has materially improved following the deployment of its proprietary ASIC cluster, though OpenAI continues to run operating losses as it invests in successor architectures. With over $180 billion raised from investors including Amazon, Nvidia, and SoftBank, the company enters the public markets as the most heavily capitalized AI start-up in history.

The path to market was substantively de-risked on May 18 when a nine-member Northern District of California advisory jury deliberated fewer than two hours before rejecting all of Elon Musk's breach-of-charitable-trust claims against the company and CEO Sam Altman. Prediction markets moved decisively: Kalshi's contract giving OpenAI odds of beating Anthropic to market repriced from 32% to 83% within hours of the verdict. The parallel SpaceX public S-1 filing -- targeting a June 12 Nasdaq debut at a $1.75 trillion fully diluted valuation -- adds competitive urgency but analysts suggest the two offerings address sufficiently different investor cohorts to avoid material pricing interference.

Internal execution risk remains the most frequently cited concern by prospective cornerstone investors. CFO Sarah Friar is reportedly pressing for a methodical post-Labor Day roadshow, while CEO Sam Altman favors an aggressive July registration statement and late-August pricing. The tension reflects a genuine strategic dilemma: a September debut captures the AI capex supercycle at what the Goldman Sachs hyperscaler tracker estimates is a $470 billion annual commitment run-rate, but a compressed timeline increases the probability of disclosure gaps that could generate litigation exposure post-listing. Anthropic's parallel fundraising, an Iconiq-led $30 billion round at a reported $900 billion post-money valuation, positions the sector as a capital allocation event of historic proportions.

draft registration statement

the preliminary version of a company's IPO filing, submitted confidentially to regulators before going public

bookrunner

the lead investment bank that manages an IPO, including setting the price and allocating shares

gross margin profile

the relationship between a company's revenue and the direct costs of producing its products or services