KLA is trading 3.17% down at $181.96 as semiconductor-sector weakness weighs on shares. - News reports link chipmaker weakness to OpenAI pausing work on its most capable models, reviving concerns that slower AI development could weigh on future chip demand. - The supplied sector context has SOXX down 2.65% pre-market; no clear KLA-specific catalyst was identified. - Broader risk sentiment is weaker, with oil and bond yields rising after President Trump rejected Iran’s proposal concerning the Strait of Hormuz.