The Astros signed Wade to a one-year contract Thursday, Chandler Rome of The Athletic reports.
Wade slashed .250/.420/.441 with seven home runs over 201 plate appearances at Triple-A Charlotte in the White Sox organization before exercising an opt-out clause in his minor-league deal. The 32-year-old's best path to at-bats in Houston is in left field, but he'll likely be primarily relegated to a reserve role.