Key facts
- Brent crude fell 4.87% to $83.08 per barrel, and WTI crude dropped 5.4% to $80.30 per barrel on Monday.
- A U.S.-Iran peace deal is expected to reopen trade through the Strait of Hormuz.
Tumbling oil prices, driven by a tentative U.S.-Iran peace deal and OPEC fragmentation, could significantly benefit global stock markets by easing inflation concerns and allowing central banks to cut interest rates, according to JPMorgan Asset Management.

Falling oil prices can alleviate inflationary pressures, potentially enabling central banks to ease monetary policy and stimulate economic growth, which in turn could lead to broader gains across equity markets beyond just technology stocks.
Tumbling oil prices could provide a significant boost to global stock markets by fostering a broader equity rally and creating conditions for central banks to lower interest rates, according to Karen Ward, Chief Market Strategist for EMEA at JPMorgan Asset Management. Ward noted that investors have been treating higher oil prices as a threat due to inflation and growth concerns.
Oil prices experienced a sharp decline on Monday following the announcement of a peace deal between the U.S. and Iran, which is anticipated to reopen trade through the critical Strait of Hormuz. This development eases concerns about potential oil supply disruptions and energy inflation. Brent crude for August delivery fell 4.87% to $83.08 per barrel, while WTI crude for July delivery shed 5.4% to $80.30 per barrel.
Ward explained that investors had previously begun shifting capital from dominant mega-cap technology stocks into a wider range of sectors before the Iran conflict disrupted this trend. The surge in oil prices had reignited inflation worries, prompting a return to defensive investments. With crude prices now falling on hopes of a stable U.S.-Iran agreement, Ward believes inflation risks are diminishing, paving the way for wider market participation and greater central bank flexibility on interest rates.
JPMorgan analysts had previously warned in March that sustained oil prices above $90-$120 per barrel could lead to a 10%-15% correction in the S&P 500 and negatively impact growth. Furthermore, cohesion within OPEC appears to be fragmenting, with the UAE's withdrawal in May removing approximately 15% of the cartel's production capacity and introducing unconstrained supply. Recurring quota disputes and downgraded global demand forecasts further limit OPEC's market control and exert structural downward pressure on oil prices. Additionally, Gulf nations are reportedly accelerating the monetization of their underground reserves to capitalize on current prices before they fall further, contributing to increased market supply.