Asian currencies consolidated against the U.S. dollar in early trade on August 5, 2026, and may strengthen further on hopes for the reopening of the Strait of Hormuz, the Wall Street Journal reported. The moves come a day after Qatar said mediators were making progress in efforts to end the U.S.-Iran war, which drove oil prices lower, Reuters reported on August 4.

The Strait of Hormuz is a conduit for about a fifth of the world's oil and liquefied natural gas, according to Reuters. By late March 2026, the strait was effectively closed. Iran had given the U.S. a proposal for reopening the waterway and ending the war as early as April, Reuters reported, citing Axios. By July 13, the strait was operating "for a fee" following fresh exchanges of missile and drone strikes, Reuters reported at the time.

The dollar's trajectory through this period has been uneven. The WSJ Dollar Index most recently stood at 97.08, up 0.35%, with the Singapore dollar strengthening slightly against the greenback amid Hormuz reopening hopes, the WSJ reported on June 18. Earlier, on May 29, the index was at 95.58, up 0.58 point or 0.61% for the month, with markets oscillating between hopes of a near-term U.S.-Iran deal, the WSJ reported. On July 8, global stock markets rallied on the prospect of a U.S.-Iran agreement to reopen Hormuz, and the WSJ Dollar Index rose just 0.001%, the WSJ noted.

The Japanese yen was likely to remain weak as hopes for a diplomatic solution to reopen the strait picked up, the WSJ reported on July 22. The yen's weakness is consistent with a risk-on posture: when investors anticipate a de-escalation that would stabilize energy flows, the safe-haven premium that had supported the currency unwinds. The same dynamic weighed on the euro on July 13, which fell 0.26% to $1.1383, Reuters reported.

For context, Asian currencies had been gaining ground well before the Hormuz situation reached its current inflection. On January 28, 2026, the Bloomberg Asia Dollar Index rose as much as 0.4%, and the SCI EM currency index reached a fresh record high, Bloomberg reported. Not every currency in the region participated equally, though. According to the January 2026 U.S. Treasury foreign exchange report, the Vietnamese dong was one of the few Asian currencies to depreciate against the U.S. dollar over the first half of 2025, with effective exchange rates weaker by 5.8% and 5.5%.

The broader context here is a market calibrating two competing forces. On one side is the tangible progress toward a mediated end to the U.S.-Iran conflict, with Qatar's August 4 statement providing the freshest signal that negotiations are advancing. Oil prices fell on that news, and Asian currencies, which are broadly sensitive to energy import costs and dollar liquidity conditions, consolidated in anticipation of further gains. On the other side is a track record of stop-start diplomacy: the strait has moved from effective closure in March, to an Iranian proposal in April, to a "for a fee" arrangement in July, and now to renewed hopes for a full reopening in August. Each pivot has produced sharp but ultimately reversible currency moves.

What matters for market participants is the durability of any agreement. The pattern across the past five months has been one of headline-driven risk pulses followed by relapse. The dollar index has swung from 95.58 in late May to 97.08 in mid-June, with individual sessions producing moves as small as 0.001% and as large as several tenths of a percent. For Asian currency exposure, the key variable is whether Qatari mediation produces a sustained reopening rather than another temporary accommodation. The consolidation phase observed on August 5 suggests the market is positioned for incremental gains but is not yet pricing a definitive resolution. That pricing gap between hope and confirmation is where the risk sits.