Shares of NavSight Holdings Inc. NSH, 7.26% rallied 6.4% in premarket trading Monday, after the special purpose acquisition company (SPAC) announced a merger that will take space-based data and analytics company Spire Global Inc. public. The deal, which is expected to close in summer 2021, values the combined company at $1.6 billion, and is expected to provide about $475 million in proceeds. Spire uses a constellation of nanosatellites called LEMUR (low earth multi-use receiver) to collect space-based data. The company uses “space-as-a-service” business model. Once the deal closes, the stock will list on the NYSE under the ticker symbol “SPIR.” “[O]ur proprietary data and solutions help customers solve some of earth’s greatest challenges, including Net Zero and Climate Change adaptation,” said Spire Chief Executive Peter Platzer. NavSight’s stock, which went public in November, has gained 6.4% over the past three months through Friday, while the Renaissance IPO ETF IPO, 2.55% has advanced 7.1% and the S&P 500 SPX, 2.13% has tacked on 4.1%.