• People waiting for the right time to buy a house are bringing apartment vacancies to a 10-year low, according to data from Reis, the data company.
• Rents are up in all 82 markets that the company tracks and have hit all-time highs in 74 of them.
• The U.S. vacancy rate in the second quarter of this year was 4.7%, lowest since 2001.

From the article:

Landlords boosted apartment rents to record levels in the second quarter as demand from tenants sitting out the home-buying market pushed vacancy rates to their lowest point in more than a decade.