AI Demand Sparks New Chip Shortage; Microchip Beats Forecast Yet Stock Slides on Supply Constraints

What happened

Microchip Technology reported a quarterly beat but saw its stock decline as CEO Steve Sanghi indicated that AI customers are crowding out other buyers at supplier factories, creating a new chip shortage. This marks a sharp reversal from the inventory correction that plagued the company through fiscal 2025, when it took restructuring actions including the closure of Tempe Fab 2 and a 10% workforce reduction. The company's previous strategy of cutting manufacturing capacity now appears mismatched with surging demand, and Sanghi noted that fixing the supply imbalance could take up to six months. While book‑to‑bill had recovered to 1.06 in late 2025, the new shortage suggests demand is robust, but the company's ability to fulfill orders is constrained by foundry allocation in favor of higher‑margin AI products. Despite the positive demand signal, the stock reaction reflects investor concerns about margin pressure and the company's leveraged balance sheet (Net Debt/EBITDA 4.7x, interest coverage 0.38x) during this transition.

Implication

Investors should maintain a cautious stance as the supply shortage may cap revenue growth despite strong bookings, and the six‑month fix timeline introduces uncertainty. The company's elevated leverage and thin interest coverage leave little room for operational missteps, so any delay in resolving supply issues could pressure the stock further. However, if Microchip can secure adequate foundry capacity and pass through higher costs to customers, gross margins could expand, potentially triggering an upgrade. Monitor quarterly commentary on foundry allocation, pricing, and distributor inventory levels, as these will indicate whether the shortage is a temporary bottleneck or a structural advantage. Until evidence shows the company can convert demand into profitable growth without sacrificing the balance sheet, the WAIT rating remains appropriate.

Thesis delta

The thesis shifts from a gradual recovery with inventory normalization to a near‑term supply‑constrained environment where AI demand is crowding out traditional customers. While the new shortage signals robust end demand, the company's ability to meet that demand is hindered by foundry capacity allocation and the prior decision to reduce manufacturing footprint. The WAIT stance remains unchanged as we need clarity on supply resolution and margin impact before considering an upgrade.