Oil prices tumbled significantly as the US and Iran paused their retaliatory strikes, easing geopolitical tensions in the Middle East. Brent crude fell by as much as 7.4% to below $90 a barrel, before paring some losses, while West Texas Intermediate crude dropped 5.4% to $84.46 a barrel. This marked the lowest level for both contracts in nearly a week, offering relief to global markets amidst hopes for a diplomatic resolution to the conflict.

The de-escalation led to a broad market rally. MSCI’s Asia Pacific equities gauge rose 0.4%, and contracts for the Nasdaq 100 Index climbed 1.2%. Indian benchmark indices also opened significantly higher, with the Sensex up 470.38 points and the Nifty gaining 57.80 points, as investors welcomed signs of reduced tensions and the potential for lower inflationary pressures due to falling energy costs. Analysts like Shoji Hirakawa from Tokai Tokyo Intelligence Lab noted that a resolution to the conflict would be a positive development, raising hopes for market stability.

Bond markets also experienced gains, with Treasuries and government bonds in Australia and New Zealand rising as inflation concerns receded. The yield on the 10-year Treasury fell five basis points to 4.63%. The dollar, typically a safe-haven asset during conflict, weakened against most of its Group-of-10 peers. Conversely, non-interest-bearing gold, another safe haven, climbed over 1% to $4,100 an ounce, or 1.2% to $4,099.44 an ounce, and the yen strengthened to about 163.60 per dollar.

Despite the positive market reaction, some caution remains. ING analysts noted that while the price action reflected the market's desperation for positive news, recovery would likely be slow until there's clarity on whether the de-escalation is permanent and if vessels can navigate the Strait of Hormuz without fear of attack. Shipping data from Kpler indicated that fewer than 10 commodity vessels passed through the Strait of Hormuz daily over the weekend, suggesting continued wariness among shippers.