What's behind rapid growth of big brokerages? Technology, some experts say

U.S.'s largest 500 brokerages grew their business at nearly twice the rate of market overall
  • The biggest brokerages have steadily acquired more market share over the last six years.
  • The cost of technology, which can help brokerages acquire more clients and recruit agents, may be driving the growth.
  • Technology has fueled the growth of teams, which tend to work at bigger brokerages.

The nation’s biggest brokerages keep grabbing a bigger piece of the real estate pie, claiming a larger and larger share of transactions each year. The reason? Technology, some industry observers say.