An about $8-per-barrel decline in Brent crude and signs of easing US-Iran tensions boosted global equity markets as energy prices continued driving investor sentiment, Macquarie said in a Monday note.
The firm said crude oil remains the biggest factor shaping the global economic outlook and central bank expectations. It added that lower oil prices also weakened the US dollar and reduced pressure on the Japanese yen.
Macquarie pointed to growing diplomatic momentum after Iran and Oman held talks on July 24 and 25 over the Strait of Hormuz. Pakistan and Qatar also proposed renewed negotiations between Washington and Tehran, the note said.
The note added the White House continues to favor a diplomatic solution, although President Donald Trump has warned the US could resume military action if Iran attacks regional allies or commercial vessels in the Strait of Hormuz.
Macquarie said Iran continues to claim control over the Strait of Hormuz and has threatened to use naval mines to deter commercial shipping, while US threats to strike Iran's Pickaxe Mountain nuclear site remain unresolved.
The firm said developments in diplomacy will remain a key driver of investor sentiment this week, with markets closely tracking any changes in oil prices alongside geopolitical developments.
Macquarie said elevated crude prices continue to weigh on Japan through higher energy import costs. It added that additional declines in oil prices could support the yen by easing pressure on the country's terms of trade.
The note added Japan's inflation accelerated mainly because of higher fuel costs and base effects, reinforcing the role of energy prices in shaping the country's economic outlook.
Macquarie expects the Federal Reserve to adopt a tighter policy bias this week, saying policymakers have become more willing to raise interest rates if crude oil prices remain elevated and inflation stays high.