Currency

Largest Daily Loss in 30 Days Set by British Pound (GBP/IRR)

The British Pound (GBP/IRR) registered its steepest single-session drop in a month on September 13, 2026, falling 2.35% to close at 3,097,800 Iranian Rial an...

Market event cover: large price move

The British Pound (GBP/IRR) registered its steepest single-session drop in a month on September 13, 2026, falling 2.35% to close at 3,097,800 Iranian Rial and surpassing the previous 30-day maximum daily loss record.

Interactive price chart

Event Details

The session opened at 3,171,200 IRR, matching the session high before scaling down to a low of 3,097,300 IRR, and ultimately settling at 3,097,800 IRR. The 2.35% negative daily return exceeds the prior 30-day largest daily loss marker of 1.41%. Intraday volatility for the session measured a 2.39% range between high and low extremes.

Conclusion

The sharp pullback interrupts the recent price path, establishing a new 30-day peak for single-session percentage declines and shifting the scale of daily adjustments recorded over the observed timeframe.

Live rates

Track the latest British Pound (GBP/IRR) session on Iran Market Data.