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Finance: Settlement Clean Dirty Price Difference Tool

Crosswalk clean and dirty settlement prices using explicitly supplied accrued interest in the same price units; no market convention or interest computation.

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Description

Accept clean/dirty quote kind and nonnegative price/accrued interest; dirty quote must cover accrued interest.

Financial accounting arithmetic tracks amounts, balances, fees and allocations on a declared currency and sign basis. An algebraically consistent result does not authorize a transaction or establish an amount legally due.

Accept clean/dirty quote kind and nonnegative price/accrued interest; dirty quote must cover accrued interest.

When to use this tool

Use Finance: Settlement Clean Dirty Price Difference when you need a specified monetary balance or allocation calculation.

How to use the tool and how it works

  1. Enter quotedPrice, accruedInterest, quotedKind. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read result. Expand result to inspect the returned fields.

Accept clean/dirty quote kind and nonnegative price/accrued interest; dirty quote must cover accrued interest. Add or subtract accrued interest for both prices.1

Input fieldMeaning and unitsAccepted input
quotedPriceQuoted PriceRequired. Finite number.
accruedInterestAccrued InterestRequired. Finite number.
quotedKindQuoted KindRequired. Text; one of "clean", "dirty". Implementation limit: 8192 Unicode code points and 16384 UTF-16 code units.
Output fieldInterpretationReturned shape
resultObject containing the calculated members; expand to inspect the fields below.Required. Object.
result.cleanPriceClean PriceCalculated result member: number.
result.dirtyPriceDirty PriceCalculated result member: number.
json
{
  "input": {
    "quotedPrice": 101,
    "accruedInterest": 2,
    "quotedKind": "dirty"
  },
  "output": {
    "result": {
      "cleanPrice": 99,
      "dirtyPrice": 101
    }
  }
}

Limitations and assumptions

  • Price and interest share the same per-bond or per-face-value basis. Day-count accrual and settlement entitlement are not calculated.
  • Outputs are nested inside result. 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

Reconcile source ledgers and governing agreements using the intended currency precision and accounting policy. Include omitted fees, tax, timing and legal requirements before acting on a result.

References

  1. Calculation and input contract: finance/settlement-clean-dirty-price-difference — tool.io

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