https://www.reuters.com/article/us-grubhub-results/grubhub-profit-misses-on-higher-spending-to-fend-off-competition-idUSKCN1UP1HJ >GrubHub Inc's quarterly profit missed analyst estimates on Tuesday, hit by soaring costs as the online food delivery company faces off against rivals Uber Eats and DoorDash, sending its stock down 6.6%.