Goldman Sachs and Barclays have raised year-end targets for the STOXX 600 index following a new US-Iran memorandum of understanding. The geopolitical agreement triggered a sharp decline in oil prices, prompting both banks to adopt a more bullish stance on European equities.

Barclays increased its year-end target to 670 from 620, shifting its rating from Underweight to constructive. Goldman Sachs set a 12-month target of 660, citing resilient corporate earnings and reduced stagflation risks as primary drivers for the upgrade.

The US-Iran deal establishes an immediate ceasefire and a 60-day negotiation window regarding nuclear discussions and transit through the Strait of Hormuz. With approximately twenty percent of global oil supply passing through this chokepoint, crude prices dropped four percent immediately upon the announcement.

Lower energy costs are expected to compress margins for energy stocks while benefiting energy-intensive sectors like autos, industrials, and consumer discretionary. However, market consensus remains divided. A broader survey of strategists projects a median target of 640, reflecting uncertainty over the durability of the current rally.

Investors face execution risk during the 60-day negotiation period. If talks stall or ceasefire terms are violated, oil risk premiums could return, pressuring equities. Sustained lower crude prices remain the key validation signal for these upgraded equity targets.