Refinance rates were mixed, but one key rate tapered off. Even a slightly lower interest rate can save you money on your home loan.

Americans saw a chance to save a few dollars on their monthly mortgage payments and took it, pushing refinance applications up 40% versus a year ago.

“Rates typically move higher if job openings are higher than expected, all else equal,” wrote Matthew Graham, chief operating officer at Mortgage News Daily, adding that this data-driven volatility is nothing compared with what could be seen on Thursday following the government’s release of the monthly employment report.