Four currencies tripped the U.S. Treasury's 10-percent revaluation tripwire this quarter — and the biggest jump was a rate that had not moved in a decade

To keep agencies' foreign-currency reporting consistent, the U.S. government converts such amounts through one quarterly table: the Treasury Reporting Rates of Exchange, maintained by the Bureau of the Fiscal Service. It is the standard rate federal agencies use to report their foreign-currency transactions in U.S. dollars — not a market feed, and not the same thing as a country's official or market exchange rate. It reflects, in Treasury's own words, "the exchange rates at which the U.S. government can acquire foreign currencies for official expenditures as reported by disbursing officers for each post" — one rate per currency, set at quarter-end. Treasury lists specific exceptions where a different rate applies: amounts fixed by international agreements, conversions of one foreign currency into another, foreign currencies sold for dollars, and transactions affecting dollar appropriations — and it directs that a non-current (amended or prior) rate not be used to value transactions affecting those appropriations. It moves between quarters only on a tripwire. Treasury's rule: "If current rates deviate from the rates in this report by 10 percent or more, Treasury will issue amendments to this quarterly report." Since April 2021 an amendment appears as a second line for that currency, carrying a later effective date (Treasury Financial Manual, Volume I, 2-3200). We pulled all 171 lines of the June 30, 2026 report — 167 currencies, four of them carrying an amended second line. Every one of the four cleared the 10-percent trigger, base rate to amendment: - **Bolivia — boliviano:** 6.85 → 10.35, **+51.1%** (amended effective July 15, 2026) - **South Sudan — pound:** 4,800 → 5,700, +18.8% (effective Aug. 14, 2026) - **Venezuela — bolívar soberano:** 621.465 → 723.933, +16.5% (effective July 15, 2026) - **Burundi — franc:** 3,000 → 3,443, +14.8% (effective July 15, 2026) Three of the four were already drifting: Venezuela carried an amendment the prior quarter too (472.686 → 547.998), and South Sudan and Burundi have crept down for years. Bolivia is the outlier. Across every quarterly report the dataset returns from 2016 through March 2026 — roughly 40 straight quarters — the boliviano sat on a single line between 6.77 and 6.90. June 30, 2026 is its first amended line in that record, and the largest single move of the four.

The following is analysis, not fact. The 10-percent tripwire makes an amendment worth reading as a signal in itself. The table does not chase daily foreign-exchange moves; it re-marks a currency only when the reported rate has moved at least 10 percent from the figure on its books. So a second line means just that — the quarter's rate had drifted past the tripwire, nothing more inferred about why. Four such amendments this quarter is a small set against 167 currencies — and Bolivia is the one that changes character, from a rate that had held near 6.85 for a decade to a 51-percent revaluation in a single filing. The why sits outside our pull, and it is well reported: Bolivia's economy ministry ended the country's roughly 15-year dollar peg in late June 2026 — a devaluation of the boliviano of roughly 30 percent, its official rate rising about 40 percent, from near 6.96 to about 9.73 per dollar — after a dollar shortage drove the parallel market toward 20. The Treasury amendment lands weeks later and is consistent with that break; it does not prove it, and the table records the move rather than causing it. ^sspeculative One comparison needs its dates attached. Treasury's 10.35 mark for the boliviano took effect July 15; the ~9.73 figure was Bolivia's reference rate when the float opened in late June — about three weeks earlier, a window in which the new official rate kept climbing. The two are not a same-day pair, so Treasury's July mark cannot be read as sitting "above" the June announcement; it is a later snapshot of a rate that was still moving. What the amendment shows is narrower and solid: by mid-July the government's own booked rate for the boliviano had crossed 10 — a currency it had carried near 6.85 for a decade.

Read the amendment as a market quote and you will overread it. It is a single per-post figure, updated in discrete 10-percent-or-more steps, not a live rate — so it lags continuous moves and understates volatility between amendments. A currency that drifts 9 percent every quarter can fall by a quarter over a year and never trip the wire, which means the four amendments undercount, not overcount, real movement across the table. And whether four amendments in one quarter is high or ordinary is not something a single report can settle — we did not build the multi-year amendment-frequency series that claim would need. The defensible statement is narrow: in the June 30, 2026 report, four currencies carry an amendment, and Bolivia's is both the largest and the first the boliviano has drawn in the decade the dataset returns.

A desk watching Bolivia saw a peg break; a desk watching Venezuela saw one more crawl. Neither saw the instrument they share. The Treasury table converts all of it — the embassy in La Paz and the one in Caracas — through one quarterly page, on one 10-percent rule, and reading the whole page is what surfaces that four currencies tripped it at once and that only one of the four had been standing still.