Broad-based participation emerged as well: the Russell 2000 jumped 3.5% for the week, pushing its 2026 gain to 22.3%, suggesting risk appetite extended beyond mega-cap names.
Yet the advance carries visible fault lines. Pre-market action shows S&P 500 and Dow futures under modest pressure while Nasdaq futures hold their ground, a divergence that hints at selective conviction rather than broad-based chasing. The VIX below 15 and yields off recent highs create a constructive backdrop, but stretched momentum and rich valuations raise the probability of sector rotation and short-term profit-taking heading into the new trading week.
Geopolitical crosscurrents add another layer of uncertainty. Tensions surrounding the Strait of Hormuz — where roughly 20% of global oil transits — have ebbed and flowed, with Iranian statements creating ambiguity about the waterway's status. Oil prices have steadied near $78 a barrel for West Texas Intermediate, and a decline in crude last week helped ease inflation concerns, but the situation remains fluid.
This week's consumer and producer price indexes will test whether the market's optimistic rate repricing is justified. Softer inflation data could sustain the technology-led rally and keep rate-cut hopes alive for later in 2026. Hotter readings would revive hike fears and likely trigger a sharp reversal in the very names that have led the market higher.
Earnings from AI-exposed companies including Applied Materials, Cisco, and CoreWeave will provide a parallel fundamental check on the sector's momentum.