Quartz, the business news site launched in 2012 by The Atlantic, passed 5 million unique visitors in January.
It had 1.8 million unique visitors as recently as October.
In addition, Quartz is tracking to be up more than 400 percent this quarter compared to the same quarter last year in terms of advertising revenue. During the past year, Quartz has added more than 40 accounts to the client roster, many of whom continue to run with Quartz in the beginning of this year.
Mobile is Quartz’s fastest-growing segment, with 41 percent of unique visitors viewing the site on a tablet or mobile phone in January, according to Omniture. Quartz’s global readership continues to expand, with 44 percent of unique visitors coming from outside of the U.S.
“It’s clearer than ever that readers around the world are looking for high-quality journalism tailored for reading on the devices they have near at hand,” says Kevin J. Delaney, Quartz’s co-founder and editor in chief, in a prepared statement. “Our journalists and engineers are entirely focused on delivering that—and, continuously refining their efforts, are helping define a new model for business media.”