What are blue-chip stocks in the Taiwanese stock market?

Blue-chip stocks in the Taiwanese stock market are shares of large companies that represent the market, including TSMC, MediaTek, and Foxconn.

What impact does the oil price surge have on the Taiwanese stock market?

The oil price surge affects plastic-related stocks and steel stocks, and it also has an impact on the overall market trend.

What does the loss of the quarterly line mean?

The loss of the quarterly line means that the weighted index has fallen below the lowest point of the past three months, indicating a bearish market signal.

Post-Market: Blue-Chip Stocks Weaken, Index Drops 170 Points, Losing Quarterly Line; First Week of August Sees 1106-Point Gain

Published Aug 7, 2026 3:06 PM ・ Updated Aug 7, 2026 4:30 PM ・ 4 min read ・ Source: PR Times

On July 7, the Taiwanese stock market opened higher but later fell due to a surge in oil prices caused by Iran's restriction on shipping in the Strait of Hormuz, leading to a 170.79-point drop in the weighted index, which lost the quarterly line. However, the first week of August saw a 1106.16-point gain, with a weekly K-line closing in the red.

The Taiwanese stock market opened higher on July 7, reaching a peak gain of over 400 points. However, as Iran restricted shipping in the Strait of Hormuz, oil prices surged, leading to selling pressure on blue-chip stocks like TSMC. The weighted index turned from red to black, hitting a low of 44,109.88 points, down nearly 300 points. The final decline was narrowed, closing at 44,225.91 points, down 170.79 points or 0.38%, and the quarterly line was lost again, with a turnover of 8,192.04 points. In the first week of August, the market rose 1,106.16 points, with a weekly K-line closing in the red, up 2.57%.

Blue-chip stocks showed mixed performance. TSMC (2330-TW) rose 5 yuan, up about 0.2%, closing at 2,370 yuan. MediaTek (2454-TW) fell 20 yuan, down about 0.5%, closing at 3,900 yuan. Hon Hai (2317-TW), Delta Electronics (2308-TW), Quanta Computer (2382-TW), and Chinpo Electronics (3711-TW) all fell nearly 2%. Electronic blue-chip stocks lacked significant support.

The rise in oil prices boosted plastic-related stocks. South Asia (1303-TW) rose about 3%, Asia Plastic (1308-TW) rose about 2%, and Formosa Plastics (1304-TW), Formosa Petrochemical (1301-TW), and Formosa Chemicals (1326-TW) all rose about 1%.

Steel prices stopped falling and are expected to rebound, continuing the previous day's gains as a highlight. New Steel (2031-TW) rose about 9%, Donghe Steel (2006-TW), Zhonghong (2014-TW), and First Copper (2009-TW) all rose more than 2%. Taichung Steel (2027-TW) and Hailiang (2038-TW) rose about 1%.

Chuanhu (2059-TW) reported strong performance, hitting the limit today, and driving the server rail group Nan Jun International (6584-TW) to also hit the limit.

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Source: PR Times
Category: News

Post-Market: Blue-Chip Stocks Weaken, Index Drops 170 Points, Losing Quarterly Line; First Week of August Sees 1106-Point Gain

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