US Stock Market Sector Analysis – May 2026
24 sectors, 68 tickers, tracked daily. Click any date to read the analysis.
Each trading day is colored by the S&P 500 (SPY) close-to-close change: green for gains of +0.1% or more, red for losses of −0.1% or more, yellow for flat sessions within ±0.1%.
Monthly Market Summary
In May 2026 the S&P 500 finished the month in a clear uptrend, logging 13 up days, five down days and two flat sessions across 20 trading days. Leadership came from technology-adjacent themes, with Cybersecurity (+39.0%), Infrastructure (+37.9%) and the Chip Supply Chain (+25.8%) delivering the strongest monthly gains. Defensive and cyclical pockets lagged, as Materials (-4.0%), Utilities (-5.8%) and Retail (-6.2%) finished as the weakest sectors. Overall market breadth was constructive, driven by strong sector-specific rallies that outweighed the modest declines at the bottom of the market.
Daily Reports
- May 01, 2026 — Zscaler Jumps 7%, Cybersecurity ...
- May 04, 2026 — Logistics Crash: FDX, UPS Plunge
- May 05, 2026 — INTC Pops 12.9%, Chips Lead Rally
- May 06, 2026 — SMCI Surges 24%, Chips Lead S&P ...
- May 07, 2026 — Chip Stocks Give Up Gains; NVDA ...
- May 08, 2026 — INTC, AMD Spark Chip Rally
- May 11, 2026 — QCOM Jumps 8.4%, Chips Lead
- May 12, 2026 — Chip Supply Chain Falls; QCOM Sl...
- May 13, 2026 — Marvell Pops 8.2%, Chips Lead
- May 14, 2026 — CSCO Pops 13% as Infrastructure ...
- May 15, 2026 — ARM Probe Sinks Chips; Energy, S...
- May 18, 2026 — Mag 7 Slip; NVDA, AI Stocks Pull...
- May 19, 2026 — Marvell Rally; Vertiv Slips in D...
- May 20, 2026 — ARM Rockets 15%, Chips Lead
- May 21, 2026 — ARM Surges 16%, Chips Lead
- May 22, 2026 — DELL Jumps 16.8%, Infrastructure...
- May 26, 2026 — Airlines Rally; UAL Jumps 6%
- May 27, 2026 — ZS Plunges 31%, Cybersecurity Sinks
- May 28, 2026 — ARM Rockets 10.8%, Chips Lead
- May 29, 2026 — DELL Surges 33%, Infrastructure ...