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
Market years before conversion, then the ECI family
Hover for a print. Drag the bar to zoom. Click a name above to hide it.
Index (conversion = 100). Hover, drag the bar to zoom, hide a name with a click. Open Charts for USD and crosses.
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
Market rates versus the euro (ECU before 1999) until conversion, then the ECI family. 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.