The Taiwan stock market closed down 254.65 points on May 5, ending at 20532.99, a drop of 1.23%. The market initially opened high but reversed quickly, with concerns that the surging New Taiwan Dollar would impact the quarterly profits of the semiconductor and electronics sectors, leading to massive sell-offs of electronic and financial stocks, causing the index to decline by as much as 467 points to 20320.

Reportedly, the New Taiwan Dollar soared by 9.53 cents last Friday, marking the largest single-day increase in 30 years. Shortly after opening today, the exchange rate fell from 30.624 to a low of 29.416, reaching a maximum appreciation of 1.288 in intraday trading.

TSMC's stock price was affected, with the company stating that a 1% depreciation of the US dollar against the New Taiwan Dollar would result in a 0.4 percentage point decrease in its operating margin. TSMC closed at 950 TWD last Friday, opened today at a high of 957 TWD, but faced selling pressure, dropping to a low of 923 TWD. It finally closed at 938 TWD, down 1.26%.

In the broader market, major weighted stocks mostly declined, with only Chunghwa Telecom and Delta Electronics showing modest gains. Major financial stocks, such as Fubon Financial and Cathay Financial, plunged more than 5%. Today's total trading value reached 3870.2 billion TWD, an increase of 603.6 billion TWD compared to last Friday.