Intel $INTC Falls 12% in Its Worst Week Since July 2026

Let's talk about the week's biggest stock-price swings, because the headline indices were basically flat and the real drama was hiding one layer down. The S&P 500 closed Friday around 7,811, up less than half a percent on the week. Boring. What was NOT boring: $PTC ripping 35% in a single week, $INTC getting quietly destroyed, and $SWKS having the kind of week you don't tell your parents about.

Start with the good news. PTC surged 35%, its best weekly performance since June 2000, after Schneider Electric announced a $23 billion acquisition of the industrial software provider. That's a generational number for a company that most retail traders couldn't pick out of a lineup. If you were in it, congratulations. If you weren't, well, the Bloomberg Weekly Roundup video is right there to remind you what you missed.

Now the ugly. $INTC fell 12% for its worst week since July 2026, pressured by reports that TSMC is actively supporting Intel's rivals and undermining Intel's key foundry growth thesis. That's not just a bad headline, that's a structural problem. Intel's comeback story was always partly a bet on its foundry ambitions, and if its most important manufacturing partner is quietly routing business to AMD and others, the math on that recovery gets a lot harder. The Asianometry YouTube channel ran a whole segment this week on TSMC potentially anchoring a Texas fab around Elon Musk's Terafab venture, which would further cement TSMC as a power player that doesn't need Intel to win.

Then there's $SWKS, which dropped 10% for its worst week since November 2025. Skyworks is a chip supplier heavily exposed to smartphone cycles and the ongoing geopolitical noise around China supply chains. With the EU escalating trade tensions with Beijing and rare earth retaliation risks back in the headlines, Skyworks sits in an uncomfortable middle seat on a very turbulent flight.

Meanwhile, the broader chip complex is getting a reality check. OpenAI's annualized revenue came in closer to $50 billion, well short of the $70 billion some models were pricing in, and the Philadelphia Semiconductor Index dropped roughly 3.4% on the news. When your whole valuation thesis is built on AI capex being infinite, a $20 billion revenue shortfall from the company driving that capex is not a footnote.

PTC is proof that boring industrial software can have the most exciting week in the room. Intel is proof that your foundry partner can also be your biggest competitor. Skyworks is proof that sometimes there's no story, just gravity.