Mortgage applications increased 4.1 percent from one week earlier, according to data from the Mortgage Bankers Association’s (MBA) Weekly Mortgage Applications Survey for the week ending Jan. 12, 2018.

The Market Composite Index, a measure of mortgage loan application volume, increased 4.1 percent on a seasonally adjusted basis from one week earlier. The Refinance Index increased 4 percent from the previous week. The seasonally adjusted Purchase Index increased 3 percent from one week earlier.

The refinance share of mortgage activity decreased to 52.2 percent of total applications from 52.9 percent the previous week. The adjustable-rate mortgage (ARM) share of activity increased to 5.2 percent of total applications.

The FHA share of total applications increased to 11.7 percent from 11.1 percent the week prior. The VA share of total applications decreased to 10.7 percent from 11.4 percent the week prior. The USDA share of total applications increased to 0.8 percent from 0.7 percent the week prior.

The average contract interest rate for 30-year fixed-rate mortgages with conforming loan balances ($453,100 or less) increased to its highest level since March 2017, 4.33 percent, from 4.23 percent, with points increasing to 0.54 from 0.35 (including the origination fee) for 80 percent loan-to-value ratio (LTV) loans. The effective rate increased from last week.

The average contract interest rate for 30-year fixed-rate mortgages with jumbo loan balances (greater than $453,100) increased to its highest level since March 2017, 4.25 percent, from 4.16 percent, with points increasing to 0.36 from 0.23 (including the origination fee) for 80 percent LTV loans. The effective rate increased from last week.

The average contract interest rate for 30-year fixed-rate mortgages backed by the FHA increased to its highest level since March 2017, 4.30 percent, from 4.16 percent, with points increasing to 0.65 from 0.42 (including the origination fee) for 80 percent LTV loans. The effective rate increased from last week.

The average contract interest rate for 15-year fixed-rate mortgages increased to its highest level since January 2014, 3.77 percent, from 3.66 percent, with points increasing to 0.44 from 0.42 (including the origination fee) for 80 percent LTV loans. The effective rate increased from last week.

The average contract interest rate for 5/1 ARMs increased to its highest level since April 2011, 3.62 percent, from 3.50 percent, with points decreasing to 0.48 from 0.51 (including the origination fee) for 80 percent LTV loans. The effective rate increased from last week.