Stocks making the biggest moves midday: Micron Technology, SpaceX, IBM, Flex & more

Micron dropped more than 10% midday, putting it on track for its worst day since June 5 amid a broad tech selloff.

Likely continued volatility/weakness while the selloff persists; watch for stabilization attempts after the worst-day framing.

The article attributes a large same-day move to sector weakness, but provides no new Micron-specific fundamental catalyst beyond the price action.

IBM rose more than 4% after JPMorgan upgraded it to overweight, citing stronger recurring revenue, margins, profitability, and cash flow.

Near-term upside bias versus the sector as traders follow the upgrade narrative.

The text cites a same-day upgrade with an explicit rationale, which is actionable for trading around the move.

Flex fell more than 2% after its COO disclosed the sale of 36,000 shares at about $144.51 per share.

Mild-to-moderate downside/underperformance risk intraday, with limited longer-term signal.

The article provides the insider-sale fact and size (~$5.2M), but no broader guidance or business deterioration.

Palantir was marginally lower as Zeta Global announced it will partner with Palantir and rebuild its data cloud on Foundry.

Limited immediate upside unless follow-on details emerge; could trade as headline-driven.

The partnership is new, but the article gives only a marginal price reaction for Palantir and no financial terms.

Carnival fell about 6% after issuing weaker-than-expected Q3 guidance: adjusted EPS ~$1.35 vs ~$1.42 consensus.

Further pressure possible until investors digest whether the EBITDA miss (~$2.88B vs ~$3.04B) is offset by other factors.

The article provides specific guidance numbers versus consensus, which is a direct repricing catalyst.

Exxon Mobil rose around 1% after the Supreme Court allowed a lawsuit over property seized by Fidel Castro’s government in Cuba.

Mixed/volatile: stock may not sustain gains if legal risk details worsen, but the immediate reaction is positive.

The article states the Supreme Court procedural outcome but provides no damages, timeline, or Exxon-specific exposure estimate.

AMC Entertainment tumbled 25% after entering a definitive agreement to sell 95.3 million shares for about $200 million.

Downside bias likely persists until dilution math is absorbed and any terms/uses of proceeds are clarified.

The article discloses a definitive share-sale agreement with size and approximate proceeds—an immediate, material catalyst.

Primoris Services tumbled 22% after lowering guidance on additional renewables cost overruns/delays and announcing COO departure.

Further downside possible as investors reassess project cost risk and execution quality.

The article provides concrete negative guidance revision context and an executive change, both same-day catalysts.