Key Highlights

  • Amkor Technology jumped on Friday, grouped with MACOM Technology Solutions, Texas Instruments, Semtech and Teradyne among chip names climbing after the weak payrolls data, with no Amkor-specific news found.
  • Amkor is one of the world's largest providers of outsourced semiconductor packaging and test services, a step that has become more important as AI processors combine multiple chips and memory stacks into a single package.
  • Nvidia hit a record high during the session, with its Market Value topping about $5.7 trillion intraday, after Morgan Stanley named it its top semiconductor pick.
  • The storage selloff that hit Seagate and Western Digital on Friday showed how quickly AI hardware stocks can reprice when the Supply outlook changes, a risk that applies broadly across the chip sector.

Amkor Technology rose with the broad chip rally as a soft jobs report pushed investors back into semiconductor stocks. Shares jumped on Friday, ranking among the gainers on the S&P MidCap 400, as the semiconductor sector powered Wall Street higher after a weak September jobs report. NASDAQ:AMKR was one of five chip names singled out as climbing after the data, alongside MACOM Technology Solutions, Texas Instruments, Semtech and Teradyne. The soft payrolls number pulled Treasury yields and rate-hike odds lower. No Amkor-specific news was found; the stock moved with the sector.

The Last Step Before the Chip Ships

Amkor is one of the world's largest providers of outsourced semiconductor packaging and test services, known in the industry as OSAT. After a chip is made on a silicon wafer, it needs to be cut, mounted, wired up, sealed in a protective package and tested before it can go into a phone, a car or a server.

Packaging has become far more important in the AI era. Today's most powerful processors combine several chips and stacks of high-bandwidth memory in a single package, and the advanced packaging needed to do that has at times been in short supply. That has made companies with packaging expertise a closer part of the AI hardware story.

Friday's Chip Party

The sector had a strong session. Teradyne, which makes the testing machines used at the end of the chipmaking process, was the top gainer in the S&P 500, helped by its Partnership with Tokyo Electron, first announced in June.

Nvidia hit a record high during the session, with its market value topping about $5.7 trillion intraday, after Morgan Stanley named it its top semiconductor pick. Arm Holdings, Intel, AMD and Broadcom all rose sharply, and the Nasdaq-100 set a record close at 30,807.93.

Mid-cap chip names were also strong. Entegris, a supplier of materials and filters to chip factories, jumped, as did Synaptics, which surged after Onsemi switched its Takeover offer to all cash.

Jobs Data, Rates and Chips

The Bureau of Labor Statistics said US employers added just 29,000 jobs in September, compared with expectations of roughly 84,000. Revisions to July and August subtracted a combined 60,000. The Unemployment rate ticked up.

That raised hopes that the Federal Reserve, which hiked on September 16 for the first time since 2023 amid an oil shock tied to the war with Iran, would pause at its October 27-28 meeting. Odds of an October hike collapsed from about two in three earlier in the week to roughly one in five.

Capital.com analyst Kyle Rodda said the odds of a Fed hike this month have receded, though he noted further hikes are considered a matter of when and not if.

Treasury yields underlined that caution. After dropping on the report, they reversed and closed higher, with the 10-year near its highest level since 2002.

Where the Risks Lie

Amkor's Business is closely tied to the volumes its customers ship. Smartphone and auto chip Demand can be uneven, even as AI-related packaging grows. The storage selloff that hit Seagate and Western Digital on Friday showed how quickly AI hardware stocks can reprice when the supply outlook changes.

ASML's Results Will Offer a Supply-Chain Read

Mid-October brings results from ASML, the chip-equipment giant, which will give a read on demand across the supply chain. Amkor's own quarterly update will show how much AI packaging is adding to revenue. Watch the Fed's October 27-28 meeting and long-term yields, which closed Friday near their highest level since 2002.