SPAC Deal Progress: The success and timeline of HYAC's merger with its target company significantly impacts its stock price. Positive developments increase investor confidence.

Market Sentiment: Overall market conditions and investor appetite for SPACs and the target company's industry affect HYAC's valuation. Bull markets tend to boost prices.

Regulatory Environment: Changes in regulations surrounding SPACs or the target company's sector can influence investor perception and HYAC's stock performance.

Target Company Performance: Actual or projected financial performance of the company HYAC intends to acquire directly affects investor expectations and stock price after the merger.

Redemption Rates: The number of HYAC shareholders choosing to redeem their shares before the merger closes can impact the remaining shares' value and post-merger stock liquidity.

News and Rumors: Information, whether accurate or not, about the SPAC deal or the target company can cause volatility in HYAC's stock price.