Why Is Micron Stock Moving Today? MU on Oct 20, 2026: Indium Minerals Deal and a Taiwan Strike Plan
Micron announced an investment in Indium Corporation's critical-minerals plant in New York, and its Taoyuan union in Taiwan plans a one-day strike on October 22.
- Micron will fund Indium Corporation's refining and manufacturing in Rome, New York, under a long-term supply deal for high-purity minerals; it is part of a plan to spend up to $3 billion on the US chip supply chain.
- Micron's Taoyuan union in Taiwan plans a one-day strike on October 22 over profit sharing, the day of a third mediation round with its Taichung union.
- Micron rose 0.34% in the ten minutes after the Indium headline at 07:32 ET, from $878.91 to $881.86.
Reaction by asset (real prices)
| Asset | 2m before | At release | +1m | +10m | +1m % | +10m % |
|---|---|---|---|---|---|---|
| MU Volume 0.7× normal in 15 min |
878.91 | 878.91 | 877.78 | 881.86 | -0.13% | +0.34% |
Micron stock was up 0.39% at $908.41 at 10:19 ET on Tuesday, October 20, 2026, a day with two company stories: an investment in Indium Corporation's critical-minerals plant in Rome, New York, and a plan by Micron's Taoyuan union in Taiwan to strike on Thursday, October 22. The iShares Semiconductor ETF (SOXX) was up 0.21% at the same time, so Micron was trading in line with chip stocks as a group.
When Micron's Indium release reached the MoveSurge news feed at 07:32:00 ET, before the market opened, the stock stood at $878.91, about 2.9% below Monday's close of $904.90 (our calculation). One minute later it was at $877.78, down 0.13%, and ten minutes later at $881.86, up 0.34%. The chart below runs 14 minutes past the headline: its first full candle after the headline closed at $878.00, down 0.10%, and the window ended at $880.96, up 0.23%. By 10:19 ET the stock had made back all of that drop.
The Indium Corporation deal
Micron will put money into Indium Corporation's refining and manufacturing at its plant in Rome, New York, and the two companies will sign a long-term agreement that gives Micron a supply of high-purity minerals for memory production. Micron expects the deal to reduce its reliance on concentrated global refining capacity. The investment is part of a plan Micron first set out in July to spend up to $3 billion on the US chip supply chain. Micron did not say how much it is putting into Indium or give other financial terms.
The Taiwan strike plan
Micron's Taoyuan union plans to strike on Thursday, October 22, after months of failed talks over profit sharing, and reports put the walkout at one day. The union wants a permanent scheme that pays 15% of Micron's operating profit into quarterly bonuses, and it points to the profit-linked bonus systems at Samsung Electronics and SK hynix. The date falls on a third round of mediation between Micron and its union in Taichung, which has not held its own strike vote. Micron said it respects its employees' legal rights and will keep talking with both unions.
The strike headline reached the MoveSurge news feed at 09:27:26 ET, three minutes before the market opened. Price data for the minutes after it is unavailable.
Micron's dated catalysts since August
- August 3-4, 2026: two reports on Chinese memory maker CXMT, first on financing for a second Beijing DRAM plant and then on plans to make LPDDR6 mobile memory. Micron fell 0.73% and then rose 0.76% in the minutes after each. On August 4 it closed up 7.6% at $892.67 in a broad chip rally.
- October 7, 2026: the Taoyuan union said 1,994 members, 99% of those who voted, backed a strike over the bonus dispute.
- October 15, 2026: Taiwan's President Lai Ching-te urged Micron and its workers to negotiate sincerely.
- October 20, 2026, 07:32 ET: Micron announced the Indium Corporation investment in Rome, New York.
- October 20, 2026, 09:27 ET: the Taoyuan union's plan to strike on October 22 reached the MoveSurge news feed.
Why is Micron stock moving today?
On October 20, 2026 Micron announced an investment in Indium Corporation's critical-minerals plant in Rome, New York, and its Taoyuan union in Taiwan said it plans to strike on October 22. At 10:19 ET the stock was up 0.39% at $908.41, while the iShares Semiconductor ETF was up 0.21%.
What is Micron's deal with Indium Corporation?
Micron will fund expanded refining and manufacturing at Indium's plant in Rome, New York, and sign a long-term agreement to buy high-purity minerals from it. The deal is part of Micron's plan to spend up to $3 billion on the US chip supply chain, and the amount was not disclosed.
Why do Micron workers in Taiwan plan to strike?
The Taoyuan union wants a permanent scheme that pays 15% of Micron's operating profit into quarterly bonuses. Its members voted for strike action on October 7, and the planned one-day strike falls on the day of a third mediation round with Micron's Taichung union.
Sources
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Micron Invests in New York Critical Minerals Processing With Indium Corporation
— Investing News Network
Micron's October 20 announcement: investment in Indium's refining and manufacturing in Rome, New York, a long-term supply agreement for high-purity minerals, part of a plan to invest up to $3 billion in the US semiconductor supply chain.
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Micron invests in Indium Corp. to expand critical minerals capacity
— Investing.com
Independent report of the Indium investment; Micron did not disclose the amount or financial terms.
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Micron Taoyuan union to strike Thursday over profit sharing
— Quartz
The Taoyuan union plans to strike on Thursday, October 22, over profit sharing; it wants 15% of operating profit paid into quarterly bonuses.
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Micron workers in Taiwan to strike as bonus talks with chipmaker fail
— The Next Web
Strike set for October 22 after months of failed talks; local media put it at one day; timed to a mediation session with the Taichung union; Micron says it respects employees' legal rights.
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Micron union in Taiwan secures authorisation to strike
— Reuters via The Star
1,994 members, 99% of those casting ballots, voted in favour of a strike; timing still under discussion.
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Taiwan president calls for Micron, workers to negotiate 'sincerely' ahead of possible strike
— Reuters via The Star
President Lai Ching-te urged Micron and its workers to negotiate sincerely.
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