Thank you, Frode, and thanks, everyone, for participating in today's call. We met many of you in the process leading up to our IPO just over a month ago. But for those new to HealthEquity, I'd like to provide a brief summary of what we do, highlight some of the strengths in our business model and discuss briefly our results for the quarter.
HealthEquity helps solve the problem of growing importance to American families, paying for healthcare. More than 2 million consumers are taking control of medical bills and building health savings for life by using HealthEquity's proprietary cloud-based health savings account platform, obtaining reliable, affordable coverage from our network of health plan partners and employer partners, and utilizing consumer health tools from our ecosystem of solution providers.
HealthEquity's 400-plus team members include expert advisors available every hour of everyday to serve, educate and help our members make critical healthcare savings and decisions.
Our business model combines scalability, high level of visibility into the future revenue, proven profitability and a distinct competitive advantage through our technology network -- I'm sorry our technology, our network and our ecosystem partners.
This compelling combination drives our business and is reflected in the strong consistent growth we delivered in the second quarter of fiscal '15.
The following 4 key metrics drove our performance: first, revenue of $20.9 million increased 39% year-over-year; second, adjusted EBITDA of $6.9 million grew 48% year-over-year; third, the number of HSAs, for which we act as custodian, which we refer to as our HSA members, reached 1.1 million at the end of the second quarter, up 48% year-over-year -- I'm sorry, 46% year-over-year; and finally, assets under management, or AUM, at the end of the second quarter, was $1.8 billion, a 41% increase year-over-year.
These 4 metrics, revenue, adjusted EBITDA, HSA numbers and AUM, all saw accelerated growth during the first half of fiscal '15 compared to the same period 1 year ago.
We're pleased with that the team has accomplished, but we're really excited about the long-term opportunities ahead. We plan to take advantage of those opportunities by first, penetrating our existing network of roughly 200 network partners. We together provide health coverage to more than 30% of the under 65 privately-insured consumers in the United States. Second, by adding new network partners and driving profits from existing HSA members as they build health savings. And third, by evaluating opportunities to build out our partner and member base through strategic acquisitions.
Underlying all of this opportunity are the strong secular trends, which we expect to drive growth in HSAs and HSA-style plan.
I'd like to turn the call over to Steve Neeleman, our Founder and Vice Chairman, to discuss significant industry research on these trends published during the second quarter. Steve?