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JAPAN ELECTRONIC MATERIALS CORPORATION surges on HBM probe card demand linked to AI data center growth

Thu May 21, 2026 2:10 pm JST Catalyst

JAPAN ELECTRONIC MATERIALS CORPORATION <6855> rebounded sharply, marking its first gain in three days. After dropping 630 yen over the previous two sessions, the stock surged up to 670 yen, erasing those losses in a single session. On the technical front, the 75-day moving average has provided strong support since April.

The company specializes in semiconductor testing probe cards, holding a leading global market share. Demand for High Bandwidth Memory (HBM), used alongside Graphics Processing Units (GPUs) for AI servers, is surging. Because HBM probe cards command high volumes and premium unit prices, they contribute significantly to JAPAN ELECTRONIC MATERIALS' revenue growth. Consequently, robust recent earnings from NVIDIA have indirectly catalyzed the stock.

Speculation over supply-demand dynamics has also emerged. A large shareholding report filed by Nomura Securities on the 19th showed increased holdings in JAPAN ELECTRONIC MATERIALS, though the positions were attributed to securities operations linked to lending agreements. While stock lending often leads to short selling and initially dragged the share price down after the disclosure, signs of a short squeeze have appeared, suggesting a mini-squeeze accelerated the rebound.

Source: MINKABU PRESS

*Translated by generative AI. Click here for the original article.

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