ECI FX
ECI Innovations LLC
Europe’s legacy currencies,
continued as one FX family.
The mark, the franc and the lira did not die as economics. ECI FX continues them as a single, internally consistent family of rates — from each legal euro conversion to a live theoretical mid.
- 21 currencies
- Every legal euro conversion, from the Belgian franc to the Bulgarian lev.
- One family
- Quotes that belong together — built for a dealer book, not a museum case.
- Contractible
- Pricing, fixing and calculation services for venues and liquidity providers.
ECI family
…Theoretical mids. Not executable. FX trades Sunday evening to Friday evening New York time.
All 21 legacy currencies
Official — · …
| Code | Name | Live mid | vs fixing | Official | Index 100 | Euro rate |
|---|
Official history
One coherent family, from each legal conversion date
Index (adoption = 100). Live ticks are shown separately. Open the Charts tab to plot vs USD or vs each other.
One book
Twenty-one names that belong together
A listing or a market-making book should not have to police three-way holes between DEM, FRF and ITL. The family is published as one object. The construction stays with ECI Innovations LLC; the quotes are what you trade.
- Currencies
- 21
- Official as of
- —
Market makers
A coherent book instead of 21 orphaned names
Quote DEM, FRF and ITL as one family. Theoretical mids, reservation prices and your own spread stay separate fields — as they must on a real desk.
See the proposition →Exchanges & LPs
A fixing and calculation service you can contract to
Atomic family publication, lineage, and an API built for listing, matching and LP streams — not for a marketing screenshot.
See the proposition →What you see on this site
01
Legal start
Each name begins at its irrevocable euro conversion rate. That number is law.
02
A family, not a pile
The 21 rates are published together. They are designed to be quoted as one book.
03
Official history
A daily record from each adoption date. Chart any name vs EUR, USD, or another family currency.
04
Live theoretical mids
Intraday levels for desks that want a mid. Your bid, ask and credit stay yours.
Licensed methodology, commercial feeds and calculation-agent terms are available under contract — not as a public specification.
List it, make it, stream it
Market makers get a book they can risk. Exchanges get a contractible fixing. Liquidity providers get a family that belongs together. ECI Innovations LLC will stand up the calculation stack with you.