Micron Technology (MU) shares fell about 3% premarket on Wednesday to about $1,016 after the union at its Taoyuan operations in Taiwan secured strike authorization from its members.
The vote was lopsided: 1,994 members, or 99% of those voting, backed it. No strike has started, and the union says timing is still under discussion. It’s calling members to a Taipei rally on October 19, which it says won’t be a strike.
What the Taoyuan Union Wants
- A permanent profit-sharing mechanism, not one-off payouts. China Labour Bulletin reports the ask as 15% of operating profit, paid quarterly.
- It rejected Micron’s T$1 million (about $31,400) cash bonus for Taiwan staff, announced in September while mediation was underway.
- Mediation ended without a deal in September. A separate union at Micron’s Taichung operations is still negotiating.
Micron said it will keep working “through the established dialogue and mediation processes.”
What 15% Would Cost Micron

Micron’s operating income hit $43.75 billion in fiscal Q4 2026 (ended September 3), up from $3.65 billion a year earlier.
At face value, 15% of that quarter is about $6.6 billion. Across fiscal 2026, operating income totaled $99.4 billion, so 15% comes to about $14.9 billion, or 1.5 times Micron’s entire fiscal 2025 operating income. Treat that as the potential pool, not the added expense: Micron already pays incentive compensation, CLB doesn’t say whether the 15% covers Taiwan staff or the whole company, and the final formula would set the real cost.
That gap is the dispute.
What to Watch for MU Stock
Taiwan is a crucial production hub for Micron’s DRAM and HBM, so a walkout could worsen supply concerns in an already tight market. Any benefit to rivals SK Hynix (000660) and Samsung (005930) would depend on the disruption’s scale and duration. Samsung reports preliminary Q3 results on Thursday.
Micron guided on September 30 to an adjusted gross margin of about 86.25% for fiscal Q1 2027, down from 87% in fiscal Q4, with incentive compensation the biggest piece of roughly $1 billion in added costs. My view: a strike date is the headline risk, but a permanent profit-share formula would weigh on margins every quarter.
So what is Micron stock actually worth?
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