Shares of troubled server maker Super Micro Computer (SMCI), or Supermicro, surged for a second straight session after it said it would give a second-quarter business update next week.

Supermicro said Monday it would be giving a second-quarter update after markets close next Tuesday, Feb. 11. That sent shares nearly 9% higher yesterday, as investors watch whether the firm will be able to submit all its delayed regulatory filings with the Securities and Exchange Commission (SEC) by Feb. 25 in order to preserve its public listing on the Nasdaq.

Supermicro was among the top gainers in the S&P 500 Wednesday, advancing a further 7% in recent trading on news that it was ramping "full production availability of its end-to-end AI data center Building Block Solutions accelerated by the NVIDIA Blackwell platform."

"In this transformative moment of AI, where scaling laws are pushing the limits of data center capabilities, our latest NVIDIA Blackwell-powered solutions, developed through close collaboration with NVIDIA, deliver outstanding computational power," Supermicro CEO Charles Liang said.

Despite their two-day surge, Supermicro shares have lost more than 50% of their value over the past year amid concerns about the company's accounting practices. Last August, short seller Hindenburg Research accused the firm of "accounting manipulation," and two months later, EY resigned as its auditor, saying it was "unwilling to be associated with the financial statements prepared by management."