Lease Rollover Exposure Calculator
Actual rent-weightedleaseexpiryexposurewithin independent day offset horizon, zero-dayexpiry included, unweightedcountnot substituted. No rollover vacancy/renewal forecast.
Description
Lease rollover exposure weights upcoming expiries by rent.
Lease rollover exposure weights upcoming expiries by rent.1
It measures the share reaching expiry within a review horizon rather than predicting renewal or vacancy. The calculation and input requirements are explained below.
When to use Lease Rollover Exposure Calculator
Enter nonempty aligned nonnegative rent weights and expiry offsets in days, with positive total rent weight and a nonnegative horizon.
How to use Lease Rollover Exposure Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run Lease Rollover Exposure Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualLeaseRentWeights | Actual Lease Rent Weights. Use the units and matching context stated in the calculation below. | array of number | Required; other constraints below |
| actualExpiryOffsetsDays | Actual Expiry Offsets Days. Use the units and matching context stated in the calculation below. | array of number | Required; other constraints below |
| callerReviewHorizonDays | Caller Review Horizon Days. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
Enter nonempty aligned nonnegative rent weights and expiry offsets in days, with positive total rent weight and a nonnegative horizon. Include expiries with offset at most the horizon, including zero. Return their rent-weight percentage; no renewal probability is assumed.
exposurePercent=100*sum(rentsForExpiryOffset<=horizon)/sum(allRentWeights) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualLeaseRentWeights": [
1,
1
],
"actualExpiryOffsetsDays": [
10,
30
],
"callerReviewHorizonDays": 20
},
"output": {
"result": {
"value": 50
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Weighted Average Lease Term Calculator for a complementary operation: WALT is a weighted average of remaining lease terms.
Use Lease Renewal Probability Calculator for a complementary operation: An empirical renewal fraction summarizes eligible observed lease outcomes.
References
-
Lease Rollover Exposure Calculator — tool.io
Similar or alternative tools
- Weighted Average Lease Term Calculator
WALT is a weighted average of remaining lease terms.
- Lease Renewal Probability Calculator
An empirical renewal fraction summarizes eligible observed lease outcomes.