Module 7 · Lesson 4 of 7 · Stocks and ETFs · About 5 minutes
Stock Splits, Dividends and Corporate Actions Explained
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Before you read: Short Selling Explained: Borrowing, Fees and Short Squeezes
What you will learn
- How stock splits and reverse splits change share count and price.
- How dividends work, including the ex-dividend date.
- What buybacks, spinoffs and mergers do, and why charts are adjusted for them.
What is a stock split?
If a pizza is cut into eight slices instead of four, do you have more pizza?
In a stock split, a company gives shareholders more shares and the price per share falls in proportion. In a 2-for-1 split, 100 shares at $200 become 200 shares at $100. The total value, $20,000, does not change because of the split itself, and neither does the company’s market capitalization.
A reverse split does the opposite. In a 1-for-10 reverse split, 1,000 shares at $1 become 100 shares at $10. Companies sometimes use reverse splits to keep a share price above an exchange’s minimum listing price.
Options on a stock that splits are adjusted so that the contract still represents the same value, which can leave contracts with non-standard terms.
How do dividends work?
If a company pays out cash, where does that cash come from, and what happens to the share price?
A dividend is a payment a company makes to shareholders, usually in cash. Four dates matter:
- Declaration date. The board announces the dividend.
- Ex-dividend date. The first day the stock trades without the right to the upcoming dividend. You must own the stock before this date to receive it.
- Record date. The company checks its records to see who is owed. Under the current US settlement cycle, it usually falls on the ex-date. For very large distributions (25% or more of the stock’s value), FINRA rules instead set the ex-date as the first business day after the payment date.
- Payment date. The cash is paid.
On the ex-date, the share price usually opens lower by about the dividend amount, other things equal, because the cash is leaving the company. A $0.50 dividend on a $50 stock does not create $0.50 of value; it moves it from the company to shareholders. Dividends are never guaranteed and can be cut or stopped.
Dividend yield is the annual dividend divided by the share price. A $2 annual dividend on a $50 stock is a 4% yield. A high yield can reflect a falling price, not a generous company.
Corporate actions diagram
Illustrative diagram constructed for teaching. Not real market data.
The diagram shows a fictional 2-for-1 split, with 100 shares at $200 becoming 200 shares at $100, and a dividend timeline from declaration to payment with the price opening lower by the dividend on the ex-date. It is constructed for teaching and is not real market data.
What other corporate actions matter?
Which company decisions change the number of shares, or what each share represents?
- Buybacks. The company buys its own shares, reducing the count outstanding. Each remaining share represents a slightly larger slice of the company.
- Share issuance. New shares increase the count and spread ownership more thinly, which is called dilution.
- Spinoffs. A company separates part of its business into a new company and gives shareholders the new shares.
- Mergers and acquisitions. One company buys another for cash, shares or both. The target’s shares usually stop trading when the deal closes.
Why are charts adjusted?
If a stock’s chart shows a 50% drop overnight, what should you check first?
Most charting platforms adjust past prices for splits, so the chart does not show a false crash. Many also offer an option to adjust for dividends, which lowers older prices slightly so that total-return comparisons are fair. An unadjusted chart shows the prices that actually traded at the time. Both are useful for different questions; know which one you are looking at, especially when comparing old highs and lows.
What this does not tell you about corporate actions
- Whether a split, dividend or buyback makes a stock a better or worse holding.
- How dividends, spinoffs or mergers are taxed for you. Tax treatment depends on your country, account type and situation. Ask a tax professional.
- Exact dates for any company. The company’s own announcements are the source.
- Nothing here recommends any stock.
Check yourself
- You hold 30 shares at $90 and the stock splits 3-for-1. How many shares do you have, and at roughly what price? Hint: three times the shares, one-third the price.
- To receive a dividend, must you own the stock before or on the ex-dividend date? Hint: “ex” means without.
- A stock pays $1.20 a year and trades at $30. What is the dividend yield? Hint: divide and turn into a percentage.
Reflect on your own process
- Does your checklist include confirming whether a chart is split- or dividend-adjusted before you compare old highs and lows?
- Where do you look up a company's official dividend dates, and do you record that source in your journal?
- How does your plan treat open orders on a stock that has an upcoming split or ex-dividend date?