Demeter Olive Season Index
Mediterranean olive seasonal conditions index
What DOSI tracks
The Demeter Olive Season Index (DOSI) is a weather-derived index that tracks growing conditions across the major Mediterranean olive-producing regions — Spain, Italy and Greece. It is the olive counterpart to the Almond Season Index (DASI), built on the same observable, continuously-available, spatially-explicit framework.
DOSI is currently in calibration. Backtest data is available from 2000 onwards. Live releases are scheduled to begin Q4 2026.
A DOSI value of 100 indicates conditions in line with the long-term historical average. Values above 100 indicate more favourable conditions; values below 100 indicate less favourable conditions.
Frequently asked questions
What is DOSI?
When will DOSI go live?
DOSI is currently in calibration with backtest data covering 2000 onwards. Live releases are scheduled to begin Q4 2026. To be notified when DOSI goes live, sign up for our newsletter.
Why combine three countries in one index?
Spain, Italy and Greece together account for the bulk of global olive oil production, and growing conditions across the basin are highly correlated within years. DOSI publishes a headline composite plus per-country sub-indices so users can read the basin and the country level independently.
How is DOSI calibrated for table olives vs olive oil?
DOSI's headline track is calibrated to oil olives. Sub-tracks for major table-olive regions are on the roadmap and will be released alongside or shortly after the headline.
How can I access DOSI data?
Backtest series and methodology preview are available to Demeter subscribers via the Demeter platform. For research and licensing enquiries please contact the index team.