Klaviyo (KVYO) said Tuesday its marketing platform helped generate more than $3.8 billion in sales, a measure it calls Klaviyo Attributed Value, in the five days from the US Thanksgiving holiday to Cyber Monday, a 27% increase from a year earlier.

The company said consumer spending rose 11% from a year earlier even as average discounts fell 10%, underscoring resilient demand during the holiday shopping period.

Klaviyo shares rose 2.4% in recent Tuesday trading.

Price: 28.83, Change: +0.67, Percent Change: +2.38