Uber drivers who are agitating for full-time employee status face a lengthy stretch ahead.

Shares of the ride-hailing giant rose 3.3% on Wednesday, a day after the National Labor Relations Board ruled that Uber drivers are contractors, not employees.

Tuesday’s decision — which helped Uber shares recover from a two-day slide after a dismal Friday debut on the New York Stock Exchange — relieved investor fears that Uber could be vulnerable to driver unionization.

The New York Taxi Workers Alliance, which has campaigned for full-time wages and benefits for Uber drivers, admitted on Wednesday that it had braced itself for defeat.

“It’s not something I think is shocking to come out of this particular administration,” NYTWA President Bhairavi Desai told The Post. “We’ve known that the road is going to be a long one. It’s disappointing, but it’s not discouraging by any means.”

Desai — who organized a two-hour strike among ride-hailing drivers in New York last week to protest Uber’s initial public offering — added that her group will continue its lobbying efforts until Uber changes its labor practices, or until a new administration looks on its cause more kindly.

The worker group, whose strike efforts last week appeared to be unsuccessful in creating a shortage of available rides, said that it also will continue to push for state-level legislation in places like California to protect workers.

Uber shares climbed on both Tuesday and Wednesday following the board’s opinion, finishing Wednesday up by $1.33, at $41.29. Uber is still below last week’s IPO price of $45.

“We are focused on improving the quality and security of independent work, while preserving the flexibility drivers and couriers tell us they value,” an Uber spokesperson said in a statement.