Fanuc Corp shares plunged the most in four decades after blanket scrutiny over its latest profit outlook, which fell short of expectations, intensified concerns over soaring prices of key raw materials.

The factory‑robot maker raised its माध्यम profit outlook by a modest margin, sparking fears that the cost of steel, copper and other inputs could erode margins for the automation sector.

Analysts point out that whileжил demand for industrial robots remains robust, the steep rise in material costs could dampen profitability, prompting a cautious stance from investors.

This sharp fall underscores how sensitive industrial stocks are to commodity price swings and may ripple across the broader manufacturing landscape.