Shares of the shell company taking XRP treasury firm Evernorth public nearly quadrupled last week, ahead of a merger that would bring hundreds of millions of tokens and new shareholders into the listed business.

Armada Acquisition Corp. II (XRPN) closed at $39.42 on Friday, up 68% that day and about 273% for the week, according to StockAnalysis data. The shares briefly touched $53, compared with $10.58 a week earlier. Shares are higher by another 9.5% in pre-market trading Monday.

Evernorth told CoinDesk in an email that it expects the merger to close on Wednesday, Oct. 7, subject to remaining conditions.

Armada is a special purpose acquisition company, or SPAC. It raised money, holds it in a trust and later merges with a private business. Public shareholders can request their money back before the deal closes, rather than keep their shares in the combined company.

Armada’s trust held $241.2 million at the end of June, with a redemption value of about $10.49 per public share, according to its quarterly filing. Evernorth’s Oct. 1 announcement indicates that approximately $48 million in trust proceeds will remain for the transaction.