Ticker&TapeIPOs, splits and other corporate actions
Companies are not static. They go public, split their shares, spin off divisions, merge and sometimes disappear from the exchange. Each of these events changes your position or your chart, so you need to recognize them.
IPOs: how a company goes public
An IPO (initial public offering) is the first time a company sells shares to the public. It files a registration document with the SEC, the prospectus, describing the business and its risks. Investment banks, called underwriters, gauge demand from large investors and set the offer price, for example $20. The next morning the stock starts trading on an exchange such as the NYSE or Nasdaq, and it can open far above or below that price.
Insiders and early investors usually agree to a lockup: they cannot sell their shares for a period, often 90 to 180 days. When the lockup expires, a wave of new supply can hit the stock.
New issues are volatile for several reasons: there is little trading history, no old price levels to act as support and resistance, the number of shares available to trade (the float) is often small, and nobody yet agrees on what the company is worth. Some of the biggest winners started as recent IPOs, often after forming an IPO base, but many new issues fall well below their offer price.
Stock splits and reverse splits
In a stock split, a company divides each share into several. In a 2-for-1 split, if you own 100 shares at $200 ($20,000), you end up with 200 shares at $100, still $20,000. The market cap does not change and EPS is cut in half along with the price. It is like cutting a pizza into more slices.
Companies usually split after a big run-up to make the share price easier to trade; the split itself creates no value.
A reverse split works the other way. In a 1-for-10 reverse split, 1,000 shares at $0.80 become 100 shares at $8. Companies often do this to stay above an exchange's minimum price (on the NYSE and Nasdaq, generally $1). It is frequently a sign of a struggling business.
Spin-offs, mergers and acquisitions
In a spin-off, a company turns one of its divisions into a separate public company and gives the new shares to its existing shareholders. You receive them automatically, and the parent's price drops by roughly the value of what was spun off.
In an acquisition or merger, one company buys or combines with another. In a cash deal, the target's stock usually jumps toward the offer price (say from $40 to $57 on a $60 offer) and then barely moves until the deal closes, staying a little below the offer because deals can fail. In a stock deal, target shareholders receive shares of the buyer at a fixed ratio. The buyer's stock often falls on the news, because it is paying a premium.
Delistings
A delisting removes a stock from its exchange. When it happens because the company was acquired or taken private, shareholders are paid and the story ends normally. When it happens because the company broke the exchange's rules (price below the minimum for too long, late financial reports, bankruptcy), the shares usually move to the over-the-counter (OTC) market, where trading is thin and spreads are wide.
How these events show up on a chart
- Splits: charts adjust past prices and volume, so a 2-for-1 split does not look like a 50% crash. Open the NVDA chart: its splits are already built into the history.
- Reverse splits: also adjusted, which is why some long-term charts show prices that the stock never traded at in real life.
- IPOs: the chart starts on the first trading day, so there is no 200-day moving average for months.
- Acquisitions: a big gap up followed by an almost flat line near the offer price.
- Spin-offs: a new ticker with a short history, and a step down in the parent's price unless the data adjusts for it.
- Lockup expirations: sometimes heavy-volume selling around the expiration date.
What each action does to your position
| Stock split | More shares at a lower price; same total value |
|---|---|
| Reverse split | Fewer shares at a higher price; same total value, often a warning sign |
| Spin-off | You keep your shares and receive shares of the new company |
| Cash acquisition | Your shares are bought at the deal price when it closes |
| Delisting for failure | Shares move to the OTC market, with thin trading |
Common mistakes
- Thinking a stock became cheaper or more valuable because it split.
- Buying a hot IPO on its first day without a plan, just because it is in the news.
- Ignoring the lockup expiration date on a recent IPO.
- Holding an acquisition target after the deal jump, hoping for more upside that rarely comes.
Key points
- IPOs bring new companies to market; they are volatile because they have little history and a small float.
- Splits and reverse splits change the number of shares, not the value of your position.
- Spin-offs, mergers and acquisitions change what you own; delistings for failure are a red flag.
- Charts adjust for splits, so check the history before reading a big drop as a crash.
Check what you learned
Answer at least 2 of 3 correctly to complete the lesson.
1. You own 50 shares at $300 and the company does a 3-for-1 split. What do you have after the split?
A split multiplies the shares and divides the price by the same factor, so your position's value stays the same.
2. Why is a recent IPO usually more volatile than an established stock?
With no history, few shares available and no agreement on value yet, small changes in demand can move the price a lot.
3. A company agrees to be bought for $60 a share in cash. The stock jumps from $40 to $57. Why does it usually stay a bit below $60 until the deal closes?
The small gap reflects the risk that the deal falls through and the time until shareholders are actually paid.
Open the split-adjusted NVDA chart → Try it on Ticker&Tape