US equity futures declined Monday as investors brace for the release of FOMC minutes and PCE inflation data later this week. The Federal Reserve's policy stance remains in focus following recent economic signals that have complicated the inflation outlook. Markets are preparing for potential volatility as these key economic indicators could influence the central bank's next moves.

US-Iran nuclear talks resumed in Geneva, adding geopolitical uncertainty to market calculations. Diplomatic engagement between the nations could potentially influence oil markets and regional stability, factors closely monitored by global investors. The timing of these discussions comes amid heightened tensions in the Middle East.

Marvin Loh of State Street highlighted growing concerns around Treasuries as investors navigate the current economic environment. The bank's strategist emphasized the need for careful risk assessment given the confluence of monetary policy shifts and geopolitical developments. Loh's analysis suggests that market participants should prepare for potential repositioning across fixed-income assets.