DoorDash, Datadog, Snap, and more

Major US stock indexes fell on Thursday afternoon, led by technology stocks after a flurry of earnings reports and as concerns about an artificial intelligence bubble resurfaced. The Dow Jones, Standard & Poor’s 500 and Nasdaq indices fell.

DoorDash (DASH) was the worst-performing stock in the S&P 500 after the food delivery company’s earnings fell short of expectations and gave a weak outlook. The company warned that it will continue to see expenses rise to support its investments in new products and expansion plans.

Shares of Paycom Software (PAYC) also fell after the software provider for human resources departments missed earnings estimates and reiterated its forecast, raising concerns about demand and potential growth.

Datadog (DDOG) was the best-performing stock in the S&P 500 as shares rose after the cloud data security company reported earnings that beat expectations and boosted its outlook as its larger customer base grows.

Snap (SNAP) shares took off after the operator of the photo and video social media site Snapfish posted better-than-expected quarterly results as its users grew and spent more. Snap also announced a stock buyback and an agreement that will provide Snapchat users with conversational AI search capabilities.

Shares of Air Products and Chemicals (APD) jumped after the gases and chemicals provider beat earnings estimates as sales rose in Europe and Asia.

Oil and gold futures fell. The yield on 10-year Treasury bonds fell. The US dollar lost strength against the euro, pound sterling and yen. The prices of most major cryptocurrencies have fallen.