RBC: US stocks face up to 10% pullback risk as midterms loom

The explicit linkage between the midterm cycle and AI-driven volatility is the key signal here, suggesting that algorithmic trading may amplify seasonal and political risk rather than merely react to it. That the warning comes from a major bank, not a retail commentator, adds weight to the idea that institutional positioning is already factoring in a sharp drawdown. The mention of Iran as a headwind, alongside inflation concerns, indicates a multi-factor risk stack where consumer confidence gains are not enough to offset macro pressures. What matters next is whether the September seasonality pattern holds or gets overridden by the AI-trading dynamics cited, as that would test the market's resilience to political calendar effects.