Adds updated share moves, OHB CEO, analyst quotes in paragraphs 3,6-8

By Gianluca Lo Nostro

May 21 (Reuters) - European space stocks jumped on Thursday after Elon Musk's SpaceX filed for a stock market listing, raising hopes that a landmark debut could lift valuations across the sector.

French satellite operator Eutelsat ETL.PA rose 20% to its highest in more than a year. German satellite maker OHB OHBG.DE gained 15% while Luxembourg-based SES SESFg.LU added 3.7%. If completed at the reported valuation, SpaceX's listing would be the first U.S. market debut initial public offering worth above $1 trillion.

"I don't think there will be capital flight. Generally speaking, big IPOs are good for the market. There’s interest, and there are opportunities," OHB CEO Marco Fuchs told Reuters.

"SpaceX indicates substantial growth of the total addressable market from space-enabled solutions in the coming years. This is exactly in line with OHB’s assessments: We are at the beginning of a real space boom!"

The move extended a strong week for the sector, with Eutelsat and OHB each up about a third as analysts said investors were looking for a re-rating, or higher market valuation, for European satellite companies.

ODDO BHF analyst Stéphane Beyazian said SpaceX's IPO was expected to command valuation multiples well above those of SES or Eutelsat.

"Some investors have appetite to have exposure to this segment and hope for a possible re-rating of European valuations," he said.

ING analyst Jan Frederik Slijkerman said sentiment toward European satellite operators had improved after a weak 2025, when investors feared low-Earth orbit constellations would disrupt the market and create overcapacity, especially for geostationary assets.

"More recently, the narrative has shifted," he said, though he declined to comment on SpaceX specifically.

SpaceX said in its filing that its total addressable market was $28.5 trillion, including $1.6 trillion for Starlink.