FTSE 100 Dips From Record as Fed Hawks and Iran Tensions Weigh; Rolls-Royce Lifts Outlook

The Quick Take

• FTSE 100 dipped from a record high after the US Federal Reserve held interest rates with three hawkish dissents
• Middle East tensions escalated as Trump renewed attacks on Iran, adding upward pressure on oil prices
• Rolls-Royce upgraded its profit outlook, providing a partial offset to broader market weakness
• S&P 500 finished down 1.52% after a late sell-off reversed earlier gains following the Fed's rate decision

London's FTSE 100 pulled back from record highs after a turbulent session driven by two simultaneous macro shocks: the US Federal Reserve holding interest rates steady with three dissenting hawkish votes, and a renewed escalation in Middle East tensions following US attacks on Iran. The FOMC's three-dissent outcome pushed US Treasury yields higher as markets priced in a tighter policy path, weighing on global equities. The Fed's policy decision caused significant intraday volatility in the S&P 500, which moved from losses before the announcement to gains during the subsequent press conference before reversing sharply to close down 1.52%.

The combination of hawkish Fed signals and geopolitical Middle East risk creates a challenging environment for UK equities that are sensitive to both global risk-off sentiment and energy prices. Oil price gains from Iran tensions partially benefit FTSE 100 energy components including Shell and BP, providing a natural hedge within the index. Rolls-Royce's independent profit upgrade is notable as a company-specific positive that partially offset index-level pressure, demonstrating the FTSE 100's defensive capability when individual large-cap constituents deliver strong earnings surprises. The dual macro shock may keep volatility elevated into the next FOMC meeting.

Watch FTSE 100 opening levels relative to US futures and Asian market performance as the Iran tensions and Fed decision continue to ripple through global markets. The macro variable is Brent crude pricing: sustained oil above $85/barrel would support UK energy sector earnings while simultaneously adding inflationary pressure, potentially complicating the Bank of England's rate path. Monitor for Rolls-Royce's next investor day or guidance update, which may provide additional detail on the profit upgrade drivers and whether the improvement is sustainable through 2026 and into 2027.

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