Solaris Energy Infrastructure, Inc. (SEI) saw its stock price plummet by over 10% during intraday trading on Thursday, marking the largest single-day percentage decline for the company since November 2022. The steep drop came as the company announced the filing of an exemptive application with the Securities and Exchange Commission (SEC).

SEI, a leading provider of investment solutions, has filed for SEC approval to establish an ETF multi-share class structure for its mutual funds. According to the company, this move aims to provide greater investment flexibility and growth opportunities for investment advisors utilizing SEI's Advisors' Inner Circle Fund platform. However, the market appears to have reacted negatively to this announcement, as SEI's stock plunged nearly 10% before partially recovering later in the session.

While the exemptive application filing is intended to benefit SEI's clients and partners, investors may be concerned about the potential risks and uncertainties associated with such a structural change. As of September 30th, 2024, SEI managed, advised, or administered approximately $1.6 trillion in assets, making it a significant player in the financial services industry. The company's move to establish an ETF multi-share class structure could have far-reaching implications for its operations and future growth prospects.