What are analysts' expectations for the market reaction to any new disclosures made at the event?

Based on the content you provided, the announcement about GCM Grosvenor’s upcoming Investor Day does not contain any commentary from analysts or any forecast of how the market might react to new disclosures that could be presented at the event. The press release only states the basic details of the event (date, time, location) and the company’s identifier (Nasdaq: GCMG), and it does not include:

• Statements from analysts or research firms.
• Anticipated market‑reaction expectations (e.g., “analysts expect a positive/negative reaction” or “analysts are neutral”).
• Any guidance, earnings forecasts, or valuation implications that analysts might have discussed in connection with the event.

Therefore, with the information given, we cannot provide a summary of analysts’ expectations for the market reaction, because those expectations are not mentioned in the news release. If you have access to analyst reports, conference call transcripts, or other coverage that includes analyst commentary, those sources would be needed to answer the question definitively.