Super Micro Computer (SMCI.US), which was once a market winner in 2024, has now fallen from significant growth to become the biggest loser in the s&p 500 index this year.

This ai server manufacturer suffered a heavy blow on Wednesday, with the stock price plummeting by nearly 33%. Earlier, auditing firm EY resigned due to lack of confidence in the board of directors. The stock price of Super Micro Computer continued to decline, accumulating a total of 44.9% decline by the end of this week.

According to the Economic Observer APP, based on the documents submitted to the Securities and Exchange Commission (SEC) on Friday night, Super Micro Computer reached an agreement to extend the deadline for submitting its fiscal year audit financial reports until December 31 from the original October 31. In addition, the submission deadline for the balance sheet and income statement for the September quarter has been postponed from November 29 to December 31.

While many components of the s&p 500 index have suffered larger declines than Super Micro Computer this year, it appears that Super Micro Computer is still the biggest loser in this benchmark index.

On March 18th, before the opening of the market, Super Micro Computer joined the s&p 500, at a time when the stock price of this ai server manufacturer hit a historic high, with an astonishing cumulative increase of 295% since January 19, continually rising. Although the stock price of Super Micro Computer appeared to have reached a short-term peak on February 16, it surged to a new high after news of joining the s&p 500 was announced.

However, since joining the s&p 500 at a price of $100.07, the stock has been on a downward trend, especially becoming more pronounced since mid-July. Concerns in the market about Super Micro Computer's accounting issues have been escalating, including reports from short-selling institutions and a Justice Department investigation that surfaced in the weeks before the auditors resigned, ultimately leading to a 33% plunge on Wednesday, dropping to the lowest point in nine months.

As of Friday's closing, Super Micro Computer's stock price was $26.05, falling by 75.6% since joining the s&p 500, making it the worst-performing stock in the index, even surpassing Walgreens Boots Alliance (WBA.US), which has fallen 63.8% this year.

Meanwhile, Nvidia's stock price has risen by 173.35% as of November 1st this year, becoming the second best-performing stock in the S&P 500 index.