Methodology
The site stores the official BCB rate, BCB referential rate, and estimated parallel/P2P rate as separate data families. This prevents official, referential, and market sources from being mixed.
This page documents the current sources, historical coverage, treatment of missing values, and known limitations. For practical examples, see the English guide or FAQ.
The official series is the official institutional quotation published by the Central Bank of Bolivia.
For the historical range currently covered by the site, the BCB historical source records a buy rate of 6.86 and a sell rate of 6.96. The site also retains dynamic collection of the currently published official rate and does not assume that the official framework will remain unchanged forever.
The referential rate is obtained as a series separate from the official rate through the BCB Indicators SOAP/WSDL source.
According to the BCB, it is calculated from effective buy and sell operations conducted by financial-intermediation institutions with their customers.
The site's historical referential coverage begins on December 1, 2025. Earlier dates may show no value for this family and are not filled with the official rate.
P2P is a non-official market signal. The current methodology uses public platform and open-source data, primarily public USDT/BOB information from Binance P2P for the current signal and the public Dólar Blue Bolivia source for imported historical coverage.
Historical P2P records are reviewed before daily summaries are calculated. A daily lookup may preserve first, last, average, minimum, and maximum values to show movement within the day.
For long-range charts, the P2P line uses the daily average sell rate. This provides a consistent daily point when dates contain different numbers of records.
Official, referential, and P2P lines remain separate. If a source has no value for a date, the site does not invent a replacement from another exchange-rate reference.
The chart is a historical comparison and context tool. It is not a prediction.
The historical database available on the site begins on July 21, 2024. Each exchange-rate series can begin on a different date because its source, publication structure, and availability differ.
The date lookup reports what is available in the stored data. A missing value means the relevant family has no stored value for that date; it does not mean another family should be substituted.
Sources can have different schedules, publication methods, cutoffs, and availability. The series therefore do not always begin on the same date or update at the same frequency.
Public P2P sources can change availability, structure, or publication format. When that happens, the methodology must be reviewed before new values are compared with historical data.
The site aims to identify each source and known transformation clearly. It does not replace missing values with a different exchange-rate reference or present P2P as official.
Information is referential and informational. The site does not buy, sell, arrange, broker, or recommend operations involving USD, BOB, USDT, or other assets.