MXN black market rate on Oct 4, 2026: 18.12 per USD
On Sunday, October 4, 2026, the US dollar traded at about 18.12 MXN on Mexico's parallel (black) market at the close of observations. The day opened at 18.12 MXN, reached a high of 18.14 and a low of 17.41, a trading range of 0.73 MXN (4.19%).
Across 288 observations, the average price to buy dollars was 17.92 MXN and the average price received when selling dollars was 18.5 MXN. Over the session the Mexican Peso was broadly flat against the dollar (-0.03% from open to close).
Official rate vs black market rate on Oct 4, 2026
The official exchange rate published for Mexico on this date was 18.21 MXN per USD. The parallel-market close of 18.12 MXN therefore implied a premium of -0.54% over the official rate — a narrow gap, indicating the two markets were close to converged.
How Oct 4, 2026 compares
Compared with the previous observed day (Oct 3, 2026, close 18.13 MXN), the rate moved -0.06%.
One week earlier (Sep 27, 2026) the close was 17.54 MXN, so the weekly change was +3.31%.
Thirty days earlier (Sep 4, 2026) the close was 16.73 MXN, a +8.28% move over the month.
How this daily figure is produced
ETCurrency samples Mexico's USD/MXN parallel market throughout the day from peer-to-peer stablecoin order books and, where available, community submissions. Each sample is filtered for outliers and aggregated into a single buy and sell quote; the figures above are the first, highest, lowest and last of those aggregated quotes for Oct 4, 2026 (UTC).
USDT peer-to-peer prices closely track cash dollar prices in most parallel markets but are not identical to them: payment-method fees, merchant margins and local demand for stablecoins can all add a few tenths of a percent.
Frequently asked questions
- What was the dollar to Mexican Peso black market rate on Oct 4, 2026?
- The USD to MXN parallel market rate closed at approximately 18.12 MXN per US dollar on Sunday, October 4, 2026, after trading between 17.41 and 18.14 MXN.
- How much did the MXN move against the dollar that day?
- From an open of 18.12 to a close of 18.12 MXN, the parallel rate moved -0.03% on Oct 4, 2026.
- What was the gap between the official and black market MXN rate on that date?
- The official rate was 18.21 MXN per USD versus a parallel close of 18.12 MXN, a premium of -0.54%.
- Was the MXN black market rate higher or lower than the day before?
- Lower: the previous observed close was 18.13 MXN on Oct 3, 2026, a change of -0.06%.
Figures are aggregated parallel-market observations for Mexico in UTC and are indicative only; they are not a quote to trade. See the full USD → Mexican Peso history or today's live rate.