Conor Brophy: The secret of Quartz’s success

Quartz is an example of online advertising buttressed by a canny business model

It might be named after one of the most commonly occurring minerals on earth, but Quartz Media is a rare find indeed.

Figures reported by Crain’s New York Business last week, citing a person “familiar with the company’s finances”, indicate that the four-and-a-half-year-old venture turned a profit last year.

Quartz posted earnings of $1 million on $30 million in revenue for 2016. It is predicting growth in both top and bottom lines this ...