With home loan interest rates at an historic low, many people are rethinking the adjustable rate mortgage. This type of mortgage rate, which is commonly abbreviated as ARM, comes in a few different flavors. Unlike fixed mortgage rates, they fluctuate over time. The majority of homeowners – roughly seven out of ten, according to Bankrate.com – prefer fixed rates for this reason. Although they have traditionally gotten a lot of bad press, ARMs might be worth a second look. At the very least, it is good to familiarize yourself with the pros and cons of the adjustable rate mortgage.