The Rising Case-Shiller Index of Home Prices—and What It Means

A Key Analysis of August 2015 Housing Starts, Sales, and Permits

(Continued from Prior Part)

Real estate professionals watch Case-Shiller

The Case-Shiller Index is the most widely quoted index of real estate values. You could consider it the Dow Jones Industrial Average of home price indices. Keep in mind as well that real estate values are big drivers of consumer confidence and spending, and so they have an enormous effect on the economy.

The phenomenon of “underwater” homeowners—those who owe more than their mortgage is worth—has been a major drag on economic growth. Underwater homeowners are reluctant to spend. They can’t relocate to where the jobs are. So real estate and mortgage professionals watch the real estate indices closely.

Real estate prices are also a big driver of credit availability in the economy. Mortgages and loans secured by the real estate market are major risk areas for banks. When real estate prices start falling, banks become conservative and hold reserves for losses. Conversely, increasing real estate prices make the collateral worth more than the loan, which encourages banks to lend more.

House prices have risen faster than incomes

The seasonally adjusted Case-Shiller Index fell by 0.2% month-over-month and is up by 4.7% year-over-year. Since home prices bottomed out, we’ve had a couple of years of low double-digit returns in prices. Historically, incomes and house prices have correlated very closely.

Once the real estate bubble began inflating in 2000, house prices broke out of their historical range of 3.2x to 3.6x incomes. They peaked at 4.8x, fell to about 3x at the bottom, and have now rebounded to 4.4. This means home price appreciation will have to be driven more by wage growth going forward.

Home prices are not of huge importance to agency REITs (real estate investment trusts) like Annaly Capital Management (NLY) and American Capital Agency Corporation (AGNC) because these funds invest in mortgage-backed securities that are guaranteed by the federal government.

However, they are extremely important to non-agency REITs like Newcastle Investment Corporation (NCT) and Redwood Trust (RWT). Investors interested in trading the mortgage REIT sector via an ETF should look at the iShares Mortgage Real Estate ETF (REM).

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