Methodology

How SPIKE SPOT INDEX is calculated

SPIKE SPOT INDEX uses a repeatable daily process that turns respondent-partner and Monitor assessments into verified and representative index values for each position, basis and calculation date.

CPT Port

Core and seasonal export basis

FCA Chop

Border-position basis

CPT Crush

Processing-position basis

3

Index categories

17:00

Monitor import time (Kyiv)

10d / 30d

Minimum delivery-window overlap

5+

Minimum valid respondents

+/-2%

Median-based outlier filter

Locked

Final value after publication

1

Collect respondent prices

Respondents submit fair EOD price assessments for the relevant commodity, basis and delivery period.

2

Validate the sample

The system calculates the median and checks all submitted values against the central market level.

3

Exclude outliers

Prices deviating by more than ±2% from the median are excluded from the cleaned sample.

4

Calculate the index

The published value is the arithmetic average of the cleaned sample, provided the minimum respondent count is met.

5

Verify and lock

Before publication, values may be reviewed and versioned. Once published, the final value is locked and recorded in the audit log.