Adjusted Closing Price
A stock's closing price adjusted for corporate actions like dividends, splits, and distributions that affect share price.
The adjusted closing price is a stock's closing price on a given day, adjusted backward in time for corporate actions like stock splits, dividends, and distributions. It allows investors to accurately compare historical prices and calculate true returns without the distortion of corporate actions.
Example
Apple (AAPL) closed at $500 on a day with no corporate actions. The adjusted close is also $500.
But if AAPL then executed a 2-for-1 stock split, every historical price before the split is divided by 2 to ensure continuity. If AAPL had closed at $300 before the split, it's adjusted retroactively to $150 after the split. This adjustment keeps historical data comparable.
Berkshire Hathaway (BRK.B) has rarely split, so its adjusted close typically matches its raw close. But dividend-paying stocks have adjusted closes that drift slightly downward over time as dividends are subtracted.
How to Interpret It
- Use adjusted close for historical analysis: Calculate returns using adjusted closes, not raw closes. Otherwise, dividends make returns look artificially bad.
- Stock splits: A 2-for-1 split divides all prior prices by 2. A 3-for-1 split divides by 3. This keeps historical percentage returns consistent.
- Dividends: Cash dividends are subtracted from all prior prices retroactively. A stock that paid $4 in annual dividends has all historical prices reduced by $4.
- Continuity: The adjustment ensures that your return calculation (final price ÷ initial price) accurately reflects true economic gains or losses, not just corporate actions.
Limitations
- Adjusted close is backward-looking and based on historical adjustments. If new corporate actions occur, future prices will be adjusted.
- Adjustments for small dividends are minor but accumulate over decades.
- Over very long periods (50+ years), adjusted prices might become very small and difficult to interpret without context.
- Different data providers might calculate adjustments slightly differently, causing small discrepancies.
- Adjusted close assumes reinvestment of dividends if used for return calculations, which some investors don't do.
- For companies with frequent dividends, the adjusted close can diverge significantly from the actual closing price.
Related Terms
- Closing Price — the price at market close (before adjustment)
- Stock Split — when one share becomes multiple shares
- Dividend — cash payment that prompts price adjustment
- Ex-Dividend Date — when adjustment becomes effective
- Day Range — daily high and low prices
- 52-Week High — highest price in past year (adjusted)
Frequently Asked Questions
Why does the adjusted close matter?
If you calculate returns or analyze historical price trends, you must use adjusted close, not raw closing price. Otherwise, stock splits and dividends artificially inflate or deflate historical returns. Using raw prices would incorrectly show negative returns on dividend days.
What adjustments are made?
Adjustments are made for stock splits (when one share becomes two), cash dividends (which are paid from company assets), stock dividends (new shares issued), and special distributions. Most common are splits and dividends.
Is the adjusted close always lower than the closing price?
Not necessarily. If the stock has split (e.g., 2-for-1 split), the adjusted close is half the raw close from before the split. If the stock has paid many dividends, adjustments accumulate downward. But on days with no corporate action, adjusted and closing prices are identical.