Chicago PMI Surges to 62.7 in May — 4-Year High, Biggest Monthly Jump Since 2020; S&P 500 Closes May at Record 7,580 (+5%)

The MNI Chicago Business Barometer — one of the most watched regional manufacturing indicators in the US — delivered a stunning upside surprise for May 2026: **62.7**, a 4-year high and the largest single-month jump since 2020, demolishing the 50.5 consensus forecast and surging from April's contractionary 49.2 reading. **Chicago PMI May 2026 — Key Details:** - **May 2026**: 62.7 (4-year high; consensus 50.5; prior 49.2) - Month-over-month gain: +13.5 points — the largest single-month jump since the pandemic reopening surge of 2020 - Reading above 50 = expansion; the jump from 49.2 (contraction) to 62.7 (strong expansion) is a dramatic reversal - Production and new orders sub-indices likely led the surge, consistent with the broader S&P Global Manufacturing PMI's 55.3 4-year high released May 22 - The Chicago PMI is closely watched as a leading indicator for the national ISM Manufacturing PMI due June 1 (Monday) **Context — Manufacturing Resilience Despite Tariff Uncertainty:** The 62.7 reading appears to reflect a combination of factors: 1. **Front-loading ahead of Section 122 tariff cliff** (July 24): Importers and manufacturers accelerating orders before potential tariff expiry/restructuring 2. **Domestic demand resilience** despite Michigan Consumer Sentiment at a 70-year record low (44.8) 3. **Iran oil price relief** (Brent down ~20% from 2026 high of ~$115 to ~$92) easing input cost pressures in energy-intensive manufacturing sectors 4. The paradox of record-low consumer sentiment coexisting with record-high manufacturing PMI reflects the bifurcated economy: consumers are pessimistic but still spending (+4.9% YoY retail sales in April), while business investment — particularly in AI-linked capital goods — is accelerating **S&P 500 May 2026 Month-End:** - **S&P 500 May 29 close**: 7,580.06 — a new all-time high and a **+5.0% gain for the month of May 2026** - The S&P 500 has now posted gains in 9 of the last 10 weeks - Nasdaq also at record levels; AI technology names (Microsoft, Oracle, Palantir, Snowflake) continue to lead - The May +5% gain comes against a backdrop of: CPI 3.8%, Core PCE 3.3%, Q1 GDP revised to +1.6%, and Michigan sentiment at 70-year lows - The divergence between S&P 500 ATH and Michigan record-low sentiment has never been wider in the survey's 70+ year history **Watch — ISM Manufacturing PMI (June 1):** The Chicago PMI surge to 62.7 implies a strong probability of an ISM Manufacturing beat on June 1. Consensus for ISM is approximately 48-49 (still contractionary territory), but if the Chicago surge is representative, ISM could print 50+ for the first time since September 2022. A surprise ISM beat on June 1 would be the first major macro signal of June, arriving 4 days before the May jobs report (June 5) and 15 days before the Warsh FOMC (June 16–17).