JACK ▲ +0.6% - Jack in the Box Inc. $JACK - Del Taco Celebrates #1 Fast Food Honors With Free Tacos in Port St. Lucie Jack in the Box's Del Taco brand is celebrating a top ranking with a promotional giveaway in Port St. Lucie, Florida. The company's stock rose 0.6% today, potentially reflecting investor interest in the brand's marketing momentum and customer acquisition efforts through the free taco promotion. 08-SEP-2026 07:00 AM ET