Slack reports Q1 with revenue of $273.4M, up 36% YoY, 13K net new paid customers, but calculated billings growth was 38% YoY, slowing from 48% YoY in Q4 (Brian Sozzi/Yahoo Finance)

Brian Sozzi / Yahoo Finance:
Slack reports Q1 with revenue of $273.4M, up 36% YoY, 13K net new paid customers, but calculated billings growth was 38% YoY, slowing from 48% YoY in Q4  —  When great may just not be great enough for one moment in time.  —  Shares of Slack Technologies fell 13% initially in after-hours trading …