Stock Movers
Stock Movers

Sep 28, 2026 · 6 min

Nvidia expands buyback as chip stocks and miners shift

Nvidia Boosts Share Buyback; SK Hynix Drops; SpaceX Flight

The episode connects corporate AI safeguards, semiconductor restructuring, a pivotal rocket launch, and a rejected mining deal to the day’s market moves.

3 key takeaways
  1. 1Nvidia pairs a $150 billion buyback authorization with an AI security system designed to restrict rogue agents.
  2. 2SK Hynix shares fall as reports link its Solidigm NAND unit to a potential U.S. IPO valued near $100 billion.
  3. 3SpaceX’s Starship preview and Northern Star’s rejected Gold Fields offer add aerospace and mining stakes to the market roundup.

Don't miss

Nvidia’s new AI security system is presented as a potential defense against the Hugging Face breach involving OpenAI.

The brief

Nvidia’s expanded $150 billion share-buyback authorization shares the spotlight with a new AI security system designed to control agent access and shut down violations.

The security discussion links Nvidia’s system to the recent Hugging Face breach involving OpenAI, framing safeguards as a practical market and technology concern.

SK Hynix shares decline after reports that it is considering a U.S. IPO for Solidigm, its NAND memory unit, at a potential valuation of up to $100 billion.

The roundup then turns to SpaceX’s Starship Launch 14, expected to deploy 26 V3 Starlink satellites and complete multiple orbits before a Pacific splashdown.

Northern Star rejects Gold Fields’ cash-and-stock takeover proposal, saying it undervalues the portfolio despite the combination’s potential to create the world’s second-largest gold producer.

What was said on this episode

6 statements · 3 positive · 1 mixed · 2 neutral

  1. Dan Curtison Nvidia AI security systemPositive1:12

    Nvidia’s system controls AI-agent access and shuts agents down for rule violations

    “They've designed to control what AI agents can access and then shut them down when they break the rules.”

    Listen at 1:12

  2. Dan Curtison Solidigm US IPOPositive2:02

    Solidigm could be listed at a valuation up to $100 billion

    “It could get listed, listed value of up to $100 billion, according to those people.”

    Listen at 2:02

  3. Dan Curtison Solidigm US IPOMixed2:09

    Solidigm IPO timing and valuation could change

    “Details including timing and valuation could change.”

    Listen at 2:09

  4. Dan Curtison SpaceX Starship Launch 14Neutral2:53

    SpaceX Starship Launch 14 is scheduled for today

    “the Starship Launch 14 is scheduled for today.”

    Listen at 2:53

  5. Dan Curtison SpaceX Starship Launch 14Positive2:57

    Starship will deploy 26 new V3 Starlink satellites in orbit

    “the huge reusable rocket set to launch into orbit where it will deploy 26 of Starlink's new V3 satellites.”

    Listen at 2:57

  6. Dan Curtison SpaceX Starship Launch 14Neutral3:04

    Starship’s mission goal is six Earth orbits in ten hours before Pacific splashdown

    “The goal is to fly around the Earth 6 times in 10 hours, splash down in the Pacific west of Chile.”

    Listen at 3:04

Statements are attributed to the speaker as said on the episode and reflect their view at the time, not PodLume's. They are not advice.

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Nvidia expands buyback as chip stocks and miners shift | PodLume