The company also announced addition of new email features and other updates to the latest Marketing Hub product at INBOUND. Margin Highlights Non-GAAP gross margin during the reported quarter came in at 82.3%, expanded 130 basis points (bps) from the year-ago quarter. Non-GAAP subscription margin of 86.5% expanded around 50 basis points (bps) year over year. Total operating expenses were $124.5 million during the fourth quarter, up 31.2% year over year. The company reported non-GAAP operating income of $14.2 million, soaring 226.7% from the year-ago figure of $4.3 million. Non-GAAP operating margin expanded 570 bps on a year-over-year basis to come in at 9.8%. Balance Sheet & Cash Flow HubSpot ended the reported quarter with cash and cash equivalents and short-term investments of $592.3 million compared with $561.3 million recorded at the end of the previous quarter.