Shares of Virgin Galactic Holdings Inc. soared 14.9% in premarket trading Thursday, putting them on track for a fifth straight gain, after the aerospace and space travel company confirmed that the next test flight of SpaceShipTwo Unity will be conducted on May 22. The test flight will be subject to weather and technical checks. The confirmed test comes after the completion of a maintenance review of VMS Eve, which is the “mothership” jet aircraft that will carry SpaceShipTwo to an altitude of 50,000 feet. The stock has jumped 11.4% amid a four-day win streak through Wednesday, after closing at an 11-month low of $15.50 on May 13. It has tumbled 66.3% over the past three months through Wednesday, while the S&P 500 has gained 5.4%.

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