The Federal Reserve held its federal funds rate at 3.50%–3.75% at its March 18 meeting — the second consecutive hold after three successive quarter-point cuts to end 2025. The policy dilemma is severe: core PCE remains near 3.0%, adjusted job creation has effectively flatlined, and the Iran war is now injecting a supply-side inflationary impulse that the Fed’s rate toolkit cannot address. As Wedbush analysts summarised: the Fed cannot cut into an inflation problem, cannot hike into a stagnant labour market, and cannot ignore a supply-side oil shock.

Chair Jerome Powell, speaking at Harvard University on 30 March, acknowledged that long-run inflation expectations remain anchored despite elevated near-term energy prices, and signalled that the Fed is not rushing to act. His key phrase — that monetary policy works with long and variable lags — was broadly interpreted as a hold-in-place signal for the May meeting. Markets have erased earlier wagers on a rate hike, and futures now price roughly one 25bp cut in H2 2026, contingent on oil stabilisation.

The leadership transition adds another dimension. Powell’s term expires 15 May 2026. President Trump has nominated Kevin Warsh as successor — a choice widely viewed as more accommodative. However, Warsh’s confirmation faces headwinds: Republican Senator Thom Tillis has pledged to block any Fed nomination until a Department of Justice investigation into Powell is resolved. Markets are beginning to price the uncertainty of a confirmation delay, which could leave the Fed without a confirmed chair during a period of maximum macro stress.

The Bank of England entered 2026 on a cautious easing path, having cut Bank Rate modestly in late 2025. The Iran war has ended that trajectory. UK CPI stood at 3.0% in February — the last reading before the conflict began — with core inflation at 3.2%. Petrol prices have since risen 14p/litre (+10%) and diesel by 29p/litre (+20%). Forecasters project UK CPI could breach 5.0% — the highest forecast in Europe — as energy cost pass-through works its way through household bills in Q2 and Q3 2026.

The Bank of England’s March 18 MPC minutes stated CPI is likely to reach 3.0%–3.5% in Q2 and Q3 alone — a significant upside revision from pre-war projections. Rate cuts previously anticipated for 2026 are now “unlikely to materialise,” per the House of Commons Library economic briefing. The possibility of rate hikes has been raised explicitly. The FTSE 100’s energy-heavy composition has historically acted as a partial inflation hedge — BP and Shell benefit directly from higher crude prices — but the index has still sold off sharply as financial stocks, airlines, and consumer discretionary components collapse under the weight of the energy shock.

The gap between the 10-year gilt yield and the FTSE 100 dividend yield has widened to more than 1.5 percentage points, mechanically reducing the relative attractiveness of UK equities on a yield basis. The BoE faces a policy path structurally tighter than the Fed’s, with less room to look through inflation given UK consumer exposure to energy prices and a smaller domestic energy production base. This rate differential — BoE holding or potentially hiking versus Fed frozen in place — is structurally supportive of GBP but negative for UK equity multiples.

The technology sector has been the hardest-hit component of all three indices. Micron Technology has collapsed 30% in eight sessions following what should have been a catalyst-positive earnings report — a breakthrough by Google in memory architecture was interpreted by traders as a threat to Micron’s demand outlook. Nvidia is now in bear market territory, down more than 21% from its all-time high on 29 October 2025. The Nasdaq Composite fell 0.73% on 30 March to 20,794, and is down 13.4% from its peak — the worst performer of the three major US indices.

Qatar’s Force Majeure on LNG contracts has added a structural headwind for semiconductor production specifically: helium, of which Qatar supplies 30% globally, is essential in chip manufacturing. Supply disruptions are therefore compounding the demand uncertainty already weighing on the sector. Pre-market on 31 March, Nvidia, Meta, and Microsoft are trading higher by approximately 1.5%, reflecting the broader risk-on tone from Iran de-escalation reports. Eli Lilly gained over 1% after announcing the acquisition of Centessa for $7.8 billion.

The FTSE 100’s composition provides partial insulation from the tech-sector collapse: the index has no major technology weighting comparable to the S&P 500’s top-heavy Magnificent Seven exposure. Instead, BP and Shell’s direct gains from $100+ oil provided a floor through the worst of the equity selling earlier in March. The current FTSE 100 recovery above 10,168 reflects this energy offset — but the index’s banking, airline, and retail components remain under sustained pressure as cost-of-living inflation accelerates.

Professional positioning is sharply defensive. The CBOE Volatility Index topped 30 during the 30 March session — a threshold that historically marks stressed institutional repositioning. Treasury yields fell as equities sold off, with the 10-year UST dropping 3.1 basis points to 4.311%, reflecting safe-haven demand even as bonds face their own inflation headwinds. The 10-year yield hit 4.46% on 27 March — its highest since July 2025 — before retreating on Powell’s relatively dovish Harvard remarks.

The S&P 500 is down 9.4% from its January closing high, with the Dow at 10.5% correction depth. Both indices are structurally below their 50-day and 200-day moving averages — conditions associated historically with sustained bear phases rather than routine pullbacks. RSI readings of 27.47 (S&P 500) and 28.93 (Dow Jones) represent deeply oversold conditions on a daily chart. While oversold readings can trigger short-covering bounces — and Tuesday’s pre-market gain is exactly that — they do not constitute trend reversal signals in the absence of a catalyst that resolves the oil and inflation overhang.

Rotation has been evident at the sector level: financials, utilities, and real estate gained on 30 March even as tech fell more than 1%. Staples have appreciated 7.3% in the past five sessions — their best five-day run since April 2020. This defensive rotation, combined with the FTSE 100’s energy composition, suggests institutional money is seeking inflation hedges within equities rather than exiting the asset class entirely. The upcoming March Non-Farm Payrolls on Good Friday — a stock market holiday — adds asymmetric event risk to the end of this week.