Micron to buy $500 million of GlobalWafers convertible bonds at 0.5% on top of a ten-year wafer deal

A fire-hit quarter and a ten-year customer

GlobalWafers▼−9.87% — GlobalWafers, down 9.87 percent today, the Taiwan-based supplier ranked third worldwide in silicon wafers ³, reported a third quarter dented by the fire at its Novara plant in Italy: revenue and shipments fell, yet all of its existing wafer capacity is fully utilized ¹². The July 21 blaze shut Novara's 8-inch line, while the 12-inch line, the one AI chips are built on, kept running ⁴.

The same day, November 3, the board approved a plan to sell Micron▲+3.47% — Micron, up 3.47 percent today Technology up to $500 million of ten-year unsecured convertible bonds↗ at a 0.5% annual coupon ³. Micron, the US memory maker, would be the sole subscriber, the only buyer of the bonds, alongside the ten-year supply agreement the two struck in July ³. No volumes or prices are disclosed, and shareholders must still approve the placement ³⁵.

Micron is paying from a sold-out book

A convertible bond is a loan that can turn into GlobalWafers shares, so Micron would be a decade-long customer and a future owner of its supplier. Its own order book explains the urgency: more than 75% of 2027 production is already committed, 26 multi-year contracts cover over 35% of revenue through 2030, and after a record $54.2 billion quarter Micron guides the next to $61.5 billion ⁵⁶. Micron chief executive Sanjay Mehrotra expects supply and demand to stay considerably tighter for two years ⁵.

The price nobody has set

Micron is moving while its own stock is being sold: down 6.2% on November 2 on doubts over AI data-center payback, then down 5.8% more at $833.59 in November 3 trading ⁵⁷. If the conversion price is set into that fear, the bonds turn into GlobalWafers shares cheaply for Micron, just as analysts expect 12-inch polished wafer contracts to rise more than 40% in 2027↗ and GlobalWafers' average 12-inch price to climb from $92 this year to $166 by 2028 ⁸.

The boom is not in the accounts yet. Nine-month sales fell 4.4% to NT$44.07 billion, the gap The Inference flagged when the GDR, a global depositary receipt issue, landed in September ³.

Half-percent money, and what to watch

The company's case is real. $500 million at 0.5% is nearly free capital on top of the $1.432 billion raised in September↗, the third-largest GDR by a Taiwanese company on record, and because new capacity still needs customer qualification, a decade of contracted demand makes the expansion safer to fund ¹³⁹. Chairperson Doris Hsu calls it a shift from traditional supplier relationships toward sustained strategic partnerships ³.

Three dates decide it: the shareholder vote, the conversion price in the filing, and the fourth-quarter recovery management has promised ²³. The fire cost one quarter of shipments; the conversion price will shape who gains from ten years of wafer pricing.