Why did Lam Research and Semtech shares fall?

The stocks fell after TSMC cut its capital expenditure forecast, raising concerns about weakening demand for semiconductor equipment.

What is the impact of TSMC's capex cut on the semiconductor sector?

TSMC's capital expenditure cut compresses free cash flow and signals a potential demand slowdown, negatively impacting equipment suppliers like Lam Research.

Were other companies in the sector affected?

Yes, shares of Applied Materials and KLA Corporation also declined, reflecting a broad selloff in the semiconductor sector.

What triggered the selloff?

The selloff began with weak guidance from ASML the day before and was compounded by TSMC's capital expenditure cut.

Lam Research, Semtech Shares Plummet After TSMC Capex Cut

Lam Research and Semtech shares tumbled in afternoon trading after TSMC paired strong revenue with a free cash flow-compressing capital expenditure reset, amplifying a semiconductor selloff that started with ASML the day before.

Shares of Lam Research (LRCX) and Semtech (SMTC) fell sharply in afternoon trading after Taiwan Semiconductor Manufacturing Company (TSMC) announced a capital expenditure reset that compresses free cash flow. This development exacerbated a broad selloff in the semiconductor sector that began the previous day when ASML issued weak guidance.

Reasons for the Decline

TSMC's Capital Expenditure Cut

TSMC reported strong quarterly revenue but lowered its 2026 capital expenditure forecast, raising investor concerns about free cash flow pressure. The cut signals a potential slowdown in demand for semiconductor equipment, negatively impacting companies like Lam Research that supply manufacturing tools.

Sector-Wide Selloff

The selloff began the prior day after ASML's weak guidance, prompting investors to reassess the semiconductor sector's outlook. TSMC's capex cut amplified these fears, leading to broad selling in related stocks.

Context

Recent Stock Performance

Lam Research shares had been volatile over the past month, but today's decline marks its largest single-day drop in months. Semtech shares fell by a similar magnitude.

Similar Moves in the Sector

Alongside Lam Research and Semtech, other semiconductor equipment stocks such as Applied Materials and KLA Corporation also declined, reflecting the breadth of the selloff.

What This Means for Investors

This move highlights the semiconductor sector's sensitivity to capital expenditure guidance from major customers like TSMC. Pressure on stocks may persist in the near term until clarity emerges on end-demand for chips.