IPOs and private markets, in plain English.
What an IPO actually is, why SpaceX, OpenAI, and Anthropic were private — and how ordinary investors really get exposure
North-star rule of thumb
If a company is private, you can't buy it on a stock exchange — full stop
A genuinely private company has no shares trading on Nasdaq or the NYSE. Until it actually IPOs, most 'buy pre-IPO shares of [famous company]' offers aimed at the general public are, per the SEC, often illegal and a common fraud — so the first skill here is telling the real thing from the scam.
The overview
Every few years a handful of private companies become household names long before their stock is something an ordinary person can buy. Right now those names are SpaceX, OpenAI, and Anthropic. The questions are everywhere — 'How do I buy SpaceX stock?' 'Can I invest in OpenAI?' — and the honest answers are more interesting (and more useful) than the hype suggests.
This hub explains the mechanics in plain English: what an IPO actually is and what happens during one, the difference between a private company and a public one, what 'pre-IPO shares' really are (and why most offers to the general public are a red flag), who the law lets buy into private companies, and how new public companies eventually find their way into the index funds most people already own.
We use the AI-and-rockets news as the worked example because it's what everyone is searching — but the goal is the durable understanding, not a stock tip. As of mid-2026, SpaceX has filed to go public and OpenAI and Anthropic have reportedly taken early steps toward the public markets; we date-stamp those fast-moving facts and link the primary sources so you can check the current state yourself.
What we don't do: tell you whether to buy any IPO, predict where a stock will go, or treat a famous name as a reason to invest. That's not what plain-English education is for. We explain how the plumbing works so you can recognize a real opportunity from a scam — then make your own decision, or talk to a licensed professional about your situation.
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Learn the basics
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Deeper reads in this guide
Each one is a focused, plain-English breakdown. Articles markedComing soonwill publish on the moneyscale.app weekly content rhythm.
What is an IPO, exactly?
How a company goes public — the S-1, the roadshow, the lock-up, and the first-day 'pop' — in plain English.
Can you buy SpaceX stock?
Why SpaceX was private, what its 2026 IPO filing actually says, and what 'pre-IPO' really means.
Can you invest in OpenAI or Anthropic?
Their unusual corporate structures, why retail can't buy in directly, and the public-company connections that exist.
How to spot a pre-IPO stock scam
Fake 'SpaceX shares' offers are everywhere. The SEC red flags that give them away.
Accredited investor rules, explained
The income and net-worth tests that decide who can legally buy private companies.
Do index funds hold new IPOs?
When (and whether) a newly public company lands in the S&P 500 or your total-market fund.
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