• Shares of Pinterest dropped more than 10% in after-hours trading on Tuesday after it missed on user growth expectations in its first-quarter earnings.
• Pinterest noted that user growth is slowing and engagement is lowering as a result of easing Covid-19 restrictions.

Shares of Pinterest dropped more than 10% in after-hours trading on Tuesday after the company reported its first-quarter earnings, in which it missed on user growth expectations.

Here's what it reported:

• Adjusted earnings per share: 11 cents vs. 7 cents forecast by Refinitiv
• Revenue: $485 million vs. $474 million forecast by Refinitiv
• Monthly active users: 478 million vs. 480.5 million forecast by FactSet
• Average revenue per user: $1.04 vs. $0.99 forecast by FactSet

Pinterest noted a strong correlation between user engagement and pandemic lockdowns throughout 2020, the company said in a letter to shareholders. Now user growth is slowing and engagement is lowering as a result of easing Covid-19 restrictions, the company said.

"Starting in mid-March, the easing of pandemic restrictions slowed US MAU growth and lowered engagement year over year as people spent less time online," the company wrote in the letter. "In Q1, we saw good retention of the MAUs we gained during 2020, but we still don't know if or how long this retention will last. Our understanding of future engagement levels is similarly limited."

The company reported revenue of $485 million for the quarter, which was up 78% compared with a year prior. Pinterest's net loss shrunk 85% to $21.7 million, from a loss of $141.2 million a year ago.

Pinterest also provided a Q2 revenue growth estimate of 105% year to year. That was ahead of Refinitiv expectations of 95% year-to-year revenue growth for the upcoming quarter.