Virgin Galactic Holdings Inc. Spce, +3.95% shares are set to record their largest one-day percentage increase in three weeks. The stock rose 4.7% on Wednesday, and is expected to reach its highest percentage gain in a single day since June 28, when it gained 9.2%. Virgin Galactic’s shares closed Tuesday up 0.3%. This ended a two-day loss streak. Virgin Galactic announced on Monday the names of three private astronauts who will be aboard its first space flight. The private space company has set August 10 as the date for its Galactic 02 mission. This is their second commercial spaceflight, and seventh spaceflight. The Galactic 01 mission carried three crewmembers from the Italian Air Force and National Research Council of Italy to space last month. They were there for research on microgravity.