10 Best Semiconductor Stocks to Buy Under $20

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5. ASE Technology Holding Co., Ltd. (NYSE:ASX)

Share Price: $10.01

Number of Hedge Fund Holders: 18

ASE Technology Holding Co., Ltd. (NYSE:ASX) is one of the Best Semiconductor Stocks to Buy Under $20. On July 31, the company released its Q2 2025 results, with unaudited net revenues coming at NT$150,750 million for Q2 2025, up by 7.5% YoY and 1.8% sequentially. For H1 2025, its consolidated revenues went up by 9% YoY, with ATM revenues rising 18% YoY. Leading-edge advanced packaging and overall testing surpassed growth, with the general segment seeing some recovery. For its ATM business, ASE Technology Holding Co., Ltd. (NYSE:ASX) expects momentum to carry into Q3 2025, with quarter-to-quarter growth in Q4 2025.

Furthermore, ASE Technology Holding Co., Ltd. (NYSE:ASX) expects the uptrend in revenues to continue into 2026 and beyond, aided by leading-edge solutions and broad-based semiconductor demand associated with AI proliferation and general recovery. ASE Technology Holding Co., Ltd. (NYSE:ASX)’s testing business grew 31% YoY in H1 2025. The momentum is expected to continue into H2 2025 as a result of increased turnkey and expanding leading-edge test. In USD terms, the company expects its consolidated Q3 2025 revenues to grow by 12% – 14% QoQ.

ASE Technology Holding Co., Ltd. (NYSE:ASX) offers semiconductor manufacturing services in assembly and testing.

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