Sources, coverage, and data treatment

The official series is the official rate published by the Central Bank of Bolivia. After Ministerial Resolution No. 245, dated La Paz, June 26, 2026, it is interpreted as a variable official reference under the flexible exchange-rate regime executed by the BCB.

The resolution says the new regime recognizes daily supply and demand for foreign currency in the financial system, and that average buy and sell prices registered by financial institutions are an adequate reference for determining the official rate under a flexible regime.

For the currently imported historical backfill period, the BCB historical source records a buy rate of 6.86 and a sell rate of 6.96. Those values are prior-regime historical context for that period, not the current method or a permanent rule.

When the BCB publishes the official rate as a single value, the site displays one official value instead of presenting separate buy and sell sides.

The referential rate is obtained as a series separate from the official rate. When the BCB publishes referential buy and sell values, the site preserves those sides separately.

This family does not replace the official BCB rate and is kept separate from market signals such as the parallel dollar.

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.

This signal can move more frequently than institutional BCB publications and should not be interpreted as an official quotation.

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.

Source labels, effective dates, publication times, and calculation notes matter because they distinguish official/legal references from market observations.

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.