Reliability in Systems Development
NextSabi pack

FX Market

sabi-cambios

The catalogue’s currency trading, scoped to the DLL instrument: spot purchase and sale (CCD/VCD), forward (VCCA, VCCD, VVCA, VVCD) and their guarantees. A pack of its own, meant for an exchange house or a fintech that only exchanges currency.

The same market in SABI: FX Market →

72rules
26operation types
Operable: spot and forward, for the client and for own accountstatus
Exchange rates

Mexican pesos per unit

Source: Frankfurter · BCE · as of September 16, 2026

CurrencyCodeMXN
US dollarUSD17.1380
EuroEUR19.7707
Canadian dollarCAD12.2941
Pound sterlingGBP23.0627
Japanese yenJPY0.1105
Swiss francCHF20.9249
Chinese yuanCNY2.5552

Reference rates, published with a delay. They are not a bid or ask price and do not constitute an offer.

Anchor test

On capture the peso amount is never typed: it is currency times the reference exchange rate. Five tests pin the cycle, including the one documenting that the position comes from purchases minus sales, as in the client’s catalogue.

A test that does not fail when the code is wrong does not count. Every pack is anchored to an oracle traced by hand against the legacy catalogue, entry by entry.