Description
Add price return to included dividend divided by priceBefore.
A simple return is a change relative to an initial value, while a gross return is a wealth multiplier and a log return uses a logarithm of that multiplier. Dividend, split, fee and currency conventions change what is included.
Add price return to included dividend divided by priceBefore.
When to use this tool
Use Exdividend Return Window Share when you need a stated return-basis conversion or contribution.
How to use the tool and how it works
- Enter priceBefore, priceAfter, cashDividend, includedFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read priceReturn, includedDividendReturn, totalReturn. Use the output convention below.
Require positive priceBefore, nonnegative priceAfter/dividend and includedFraction in [0, 1]. Add price return to included dividend divided by priceBefore.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| priceBefore | Price Before | Required. Finite number; strictly above 0. |
| priceAfter | Price After | Required. Finite number; minimum 0. |
| cashDividend | Cash Dividend | Required. Finite number; minimum 0. |
| includedFraction | Included Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| priceReturn | Price Return | Required. Finite number. |
| includedDividendReturn | Included Dividend Return | Required. Finite number. |
| totalReturn | Total Return | Required. Finite number. |
{
"input": {
"priceBefore": 100,
"priceAfter": 98,
"cashDividend": 3,
"includedFraction": 1
},
"output": {
"priceReturn": -0.02,
"includedDividendReturn": 0.03,
"totalReturn": 0.009999999999999998
}
}Limitations and assumptions
- Included fraction is caller policy on the same share basis. No reinvestment, ex-date entitlement, taxes, fees or official return methodology is inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Reconstruct the full investment cashflow and adjustment history for performance analysis. Align horizons, quote direction and numeric return scales, and include relevant fees and taxes explicitly.
References
Similar or alternative tools
- Security Return Exdividend Cash Adjustment
Return cash total return and either final price plus cash dividend or final price×(1+dividend/reinvestmentPrice).
- Asset Return Base Split Adjustment
Compare newPrice×newSharesPerOld+dividendPerOld with oldPrice, and return raw new/old return separately.