Standard & Poors released its November 2011 Case-Shiller Index this week. The index measures the change in home prices from month-to-month, and year-to-year, in select U.S. cities.

According to the data, for the second straight month, home values fell in 19 of the Case-Shiller Index’s 20 tracked markets. In addition, also for the second straight month, Phoenix, Arizona was the lone Case-Shiller-tracked city in which home values rose.

Overall, November’s Case-Shiller Index showed a 1 percent decrease in home values between October and November 2011, and a near-4 percent decrease between November 2010 and 2011, putting home values at roughly the same levels as 8 years ago. Don’t read too far into it, however.

The Case-Shiller Index, though widely-cited, remains widely-flawed.

As a buyer or seller in South Orange County, for example, , relying on the Case-Shiller Index for market research can lead you to improper conclusions. To understand the Case Shiller Index’s methodology is to understand why.

First, the Case-Shiller Index draws its data from a very limited geography.

There are more than 3,100 municipalities nationwide. The Case-Shiller Index tracks just 20 of them. And they’re not the 20 largest, either. Four of the Top 10 Most Populous U.S. Cities are excluded (Houston, Philadelphia, San Antonio, San Jose) whereas Minneapolis and Tampa are not.

Minneapolis is the 48th largest city in the United States. Tampa is #55.

Next, when Case-Shiller Index gathers its data from its 20 cities, it only includes the home sale data of single-family, detached homes. This means that sales of condominiums and multi-unit homes are specifically excluded from the index. There are some cities — Chicago and New York, for example — where condominium sales represent a large percentage of the overall market.

The Case-Shiller Index ignores that.

And, lastly, when the Case-Shiller Index is published, it’s published on a 60-day delay. Its data is not “current”, therefore, and does little to tell buyers and sellers of Rancho Santa Margarita and the country what’s happening in their home markets right this minute. Instead, the Case-Shiller Index tells us how the housing market looked two months ago.

If you’re active in the real estate market, either as a buyer or a seller, the Case-Shiller Index does you little good. For real-time data that actionable, speak to a real estate professional instead. It’s where you’ll find your best, most reliable and relevant information.

The government confirms what the private-sector Case-Shiller Index reported yesterday. Nationwide, average home values slipped in October.

The Federal Home Finance Agency’s Home Price Index shows home values down 0.2% on a monthly, seasonally-adjusted basis. October marks just the second time since April that home values fell month-over-month.

The Case-Shiller Index 20-City Composite showed values down 0.7 percent from September to October.

As a home buyer in Trabuco Canyon , it’s easy to look at these numbers and think housing markets are down. Ultimately, that may prove true. However, before we take the FHFA’s October Home Price Index at face value, we have to consider the report’s flaws.

There are three of them — and they’re glaring. As we address them, it becomes clear that the Home Price Index — like the Case-Shiller Index — is of little use to everyday buyers and sellers in places like Orange County.

First, the FHFA Home Price Index only tracks home values for homes backed by Fannie Mae or Freddie Mac mortgages. This means that homes backed by the FHA, for example, are specifically not computed in the monthly Home Price Index.

In 2007, this was not as big of an issue as it is today. in 2007, the FHA insured just 4 percent of the housing market. Today, the FHA is estimated to have more than one-third of the overall housing market.

This means that one-third of all home sales are excluded from the HPI — a huge exclusion.

Second, the FHFA Home Price Index excludes new home sales and cash purchases, accounting for home resales backed by mortgages only. New home sales is a growing part of the market, and cash sales topped 29 percent in October 2011.

Third, the Home Price Index is on a 60-day delay. The above report is for homes that closed in October. It’s nearly January now. Market momentum is different now. Existing Home Sales and New Home Sales have been rising; homebuilder confidence is up; Housing Starts are showing strength. In addition, the Pending Home Sales Index points to a strong year-end.

The Home Price Index doesn’t capture this news. It’s reporting on expired market conditions instead.

For local, up-to-the-minute housing market data, skip past the national data. You’ll get better, more relevant facts from a local real estate agent.

Since peaking in April 2007, the FHFA’s Home Price Index is off 18.3 percent.

Standard & Poor’s released its September 2011 Case-Shiller Index this week. The index tracks home price changes in select cities between months, quarters, and years.

The Case-Shiller Index for September showed drastic devaluations nationwide.

As compared to August, home values fell throughout 17 of the index’s 20 tracked markets, led by Atlanta’s 5.9% drop. On an annual basis, home values have now returned to early-2003 levels.

That said, home buyers and sellers in the South Orange County area should be cautious when referencing the Case-Shiller Index. The index is a flawed metric and, as such, can lead to improper conclusions about the housing market overall.

The Case-Shiller Index’s first flaw is its most obvious — its limited sample set. 

According to Wikipedia, there are more than 3,100 municipalities nationwide. Yet, the Case-Shiller Index includes data from just 20 of them in its findings. These 20 cities account for fewer than 1% of all U.S. cities, and just a small percentage of the overall U.S. population. 

The “national figures” aren’t really national, in other words.

Even on a city-by-city basis, the Case-Shiller Index gets it wrong.

By lumping disparate neighborhoods into a single, city-wide result, the index ignores the relative strength of one area at the expense of another. In the aforementioned Atlanta, there are areas that fared much better than September’s -5.9% as cited by Case-Shiller. Some areas fared much worse.

A second flaw in the Case-Shiller Index is it’s methodology for measuring changes in home value. The index only considers “repeat sales” of the same home in its findings, and those homes must be single-family, detached property. Condominiums, multi-family homes, and new construction are not included.

In some cities — Chicago, for example — “excluded” property types can account for a large percentage of total monthly sales.

And, third, the Case-Shiller Index is flawed by “age”.

Because Standard & Poor’s publishes on a 60-day delay, the Case-Shiller Index is reporting on a housing that no longer exists. Sales that closed in September are based on contracts written from June-August –a time-frame that’s 6 months aged.

The best use of the Case-Shiller Index is as an analysis tool for economists and policy-makers interested in the long-term trends of U.S. housing. The index does very little good for every day buyers and sellers, unfortunately.

For up-to-date, accurate market data, talk to a real estate professional instead.

The August 2011 Case-Shiller Index was released this week. On an monthly basis, 10 of 20 tracked markets worsened. On an annual basis, valuation degradation was worse.

Only Detroit and Washington, D.C. posted higher home values in August 2011 as compared to August 2010, rising 2.7% and 0.3%, respectively.

However, the index has been moving in the right direction. Since bottoming out in March of this year, the Case-Shiller Index is up nearly 4 percent.

As home buyers and sellers in Trabuco Canyon , though, we have to remember that the Case-Shiller Index is a flawed product; its methodology too narrow to be the final word for housing markets.

The Case-Shiller Index has 3 main flaws.

The first Case-Shiller Index flaw is its relatively small sample size. Although it’s positioned as a national housing index, Case-Shiller data represents just 20 cities nationwide, and they’re not even the 20 most populous U.S. cities. For example, cities like Houston (#4), Philadelphia (#5), San Antonio (#7) and San Jose (#10) are excluded from the Case-Shiller Index findings.

By contrast, Minneapolis (#48) and Tampa (#55) make the list.

A second Case-Shiller Index flaw is the way in which it measures home price changes. The Case-Shiller Index formula ignores all home sales except for “repeat sales” of the same home. New homes don’t count for the Case-Shiller Index. Furthermore, the index ignores condominium and multi-family home sales, too. 

In some cities, condos can account for a large percentage of sales.

And the third Case-Shiller Index flaw is that the data is reported on a 2-month lag. Next week marks the start of November, yet we’re still discussing data from August. A lot can change in two months (and it often does). Today’s market conditions are similar to — but not the same as — market conditions from before Labor Day.

The Case-Shiller Index is far from “real-time”.

As a monthly release, the Case-Shiller Index does more to help people with a long-term view of housing, including politicians and economists, than it does for everyday buyers and sellers of South Orange County who negotiate prices based on current demand and supply.

A real estate agent can tell you which homes have sold in the last 7 days, and at what prices. The Case-Shiller Index cannot.

Standard & Poors released its monthly Case-Shiller Index this week. The Case-Shiller Index measures home price changes from month-to-month, and year-to-year, in 20 select U.S. cities. It also reports a “national” index; a composite of the values in said cities.

The most recent Case-Shiller Index shows a 0.9% rise in home values from June to July 2011. Home values were higher in 17 of the 20 tracked cities. Only Phoenix and Las Vegas fell. Denver was flat.

Also noteworthy is that, of all of the Case-Shiller cities, Detroit posted the strongest 1-year, home price improvement. As compared to July 2010, home values are higher by 1.2 percent in Detroit. This bests even Washington, D.C. — long-believed to be the nation’s healthiest housing market.

That said, we should be careful of the conclusions we draw from July’s Case-Shiller Index — both on a city-wide level, and on a national level. This is because, as with most “home price trackers”, the Case-Shiller Index has flaws in its methodology. 

The first Case-Shiller Index flaw is its limited scope. Although it’s purported to be a “nationa”l housing index, the data that comprises the monthly Case-Schiller Index is sourced from just 20 U.S. cities. These 20 cities represent just 0.6% of the more than 3,100 municipalities nationwide.

The second Case Shiller Index flaw is that the sample sets include single-family, detached homes only. iCondominiums, multi-unit homes, and new construction are specifically excluded from the Case-Shiller Index.

In some markets, “excluded” home types outnumber included ones.

And, lastly, the Case-Shiller Index is flawed in that it takes 2 months to gather data and report it. It’s nearly October, yet we’re still discussing the real estate market as it existing in July. For buyers and sellers in Trabuco Canyon , July in ancient history. 

The Case-Shiller Index is useful for tracking long-term trends in housing, but does little to help individuals with their choices to buy or sell a home. For relevant, recent real estate data, talk to a real estate agent in your market. Real estate agents are often the best source for real-time, real estate data.

Has housing turned the corner for good?

The June 2011 Case-Shiller Index reading posted strong numbers across the board, with each of the index’s 20 tracked markets showing home price improvement from May.

Some markets — Chicago and Minneapolis — rose as much as 3.2 percent.

The rise in values is nothing about which to get overly excited, however. The Case-Shiller Index is just re-reporting what multiple data sets have already shown about the summer housing market; that it was stronger than the spring market, and that a recovery is underway, but occurring locally, at different rates.

For example, the June 2011 Case-Shiller Index shows the following :

• Denver, Dallas, Washington D.C., and the “California Cities” bottomed in 2009. Each has shown steady improvement since.
• None of the Case-Shiller cities showed negative growth between May and June 2011.
• 12 of Case-Shiller’s tracked cities have improved over 3 consecutive months.

In isolation, these statistics appear promising, but it’s important to remember that the Case-Shiller Index is a backward-looking data set, focusing on just a portion of the national housing economy.

As an illustration, the Case-Shiller Index’s “national report” only includes data from 20 cities nationwide. They’re not the 20 biggest cities, either. Smaller metropolitan areas such as Minneapolis (#48) and Tampa (#51) are included.

Larger ones including Houston (#4), Philadelphia (#5) and San Jose (#10) are not.

In addition, the Case-Shiller index fails to track sales of condominiums, multi-unit homes and new construction. In some markets, including Chicago, these excluded home type can represent a large share of the overall market.

The Case-Shiller Index is a fine data set for policy makers and economists. It describes the broader housing market and shows long-term trends. For the individual home buyer in Rancho Santa Margarita , however, it’s much less useful. More than “broad data”, you want focused data that’s current and relevant.

The best place for data like that is a local real estate agent.

Standard & Poors released its Case-Shiller Index Tuesday. On a seasonally-adjusted basis, between April and May 2010, home prices rose in 19 of Case-Shiller’s 20 tracked markets.  It’s the second straight month of strong Case-Shiller findings.

Also, May’s numbers are a mirror-image of February’s. In February, 19 of 20 markets lost value.

In its press release, the Case-Shiller staff resisted calling May’s data proof of a housing recovery, noting that home values remain flat as compared to October of last year. However, there are some noteworthy numbers in the Case-Shiller report.

1. 13 of the 20 tracked cities are showing home price improvement year-over-year
2. Foreclosure posterchlld San Diego has now shown 13 straight months of improvement
3. San Diego, San Francisco and Minneapolis are showing double-digit annual growth

These are all good signs for the housing market, but the Case-Shiller Index is not without its flaws. Most notably, the data is limited to just 20 cities nationwide — and they’re not even the 20 largest ones. 

Cities like Houston, Philadelphia, and San Jose are excluded from Case-Shiller, while cities like Tampa (#54) are not.

Another Case-Shiller flaw is that it reports on a 2-month delay.

Therefore, today is several days from the start of August but we’re now reflecting on data from May. Given the speed at which the South Orange County real estate market can change, May’s data is almost ancient.  Today’s values may be higher or lower than what Case-Shiller reports.

For home buyers, reports like the Case-Shiller Index may not be useful in making a “Buy or Not Buy” decision, but can aid in watching longer-term trends in housing.  For real-time LOCAL data, give me a call – 949-643-2100, or shoot me an email.

Last week, the Case-Shiller Index reported home values up 0.8 percent across 20 tracked markets. The public-sector Federal Housing Finance Agency has reached a similar conclusion.

Reporting on a two-month lag, the government’s Home Price Index shows home values up 0.8 percent in April, buoyed by the expiring federal home buyer tax credit and low mortgage rates.  It’s a positive signal for a recovering housing market — in Rancho Santa Margarita and everywhere else.

But just because the Home Price Index says home values are rising, that doesn’t mean they are. The Home Price Index methodology is flawed on multiple fronts.

First, the Home Price Index reports on a 60-day delay. This two-month lag turns the HPI a trailing indicator for the housing market instead of a forward-looking one. If you’re a home buyer looking for direction, HPI won’t give it to you — you’ll have to get that analysis from your real estate agent.

Second, HPI only accounts for home values in which the home’s attached mortgage is backed by Fannie Mae or Freddie Mac.  As the FHA market share grows, fewer homes get included in the HPI sample set, and HPI values may be skewed high or low.

And, third, HPI doesn’t account for new home sales — only repeat ones.  This, too, eliminates a major segment of the market.

All of that said, though, the Home Price Index remains important to housing.  It’s still the most comprehensive home valuation model in print and it’s been giving strong readings since the start of year.  You can’t ignore that on any level.

It’s July and you may have missed the “rock bottom” South Orange County home prices from earlier in the year, but homes are still relatively inexpensive. Couple that with all-time low mortgage rates and home affordability looks excellent. Consider making an offer while the terms are right.

Standard & Poors released its Case-Shiller Index Tuesday.  The index is a monthly home valuation report from select cities and among the private sector’s most popular home pricing models.

In reviewing the April Case-Shiller Index and its accompanying analysis, it appears that the housing market’s rebound is gathering momentum.

In the index’s 20 tracked cities:

• 18 of 20 improved from March to April 2010
• Versus April 2009, home prices are up nearly 4 percent
• The two “down” cities from April — Miami and New York — are off just 0.5% and 1.0% annually, respectively

Furthermore, as another sign of strength, San Diego, a city in which homeowners have lost a lot of equity since 2007, has now shown 12 straight months of home price improvement.

However, the Case-Shiller Index must be kept in context. It’s far from perfect.

For one, the index reports on a 60-day delay; it’s only now showing data from the end of April, when the federal homebuyer tax credit was expiring. Home sales have been weak since then it’s been reported.

And second, the Case-Shiller Index is limited to just 20 cities nationwide. Therefore, the index doesn’t consider every home sale in every American city — it only considers a select few. Many more U.S. homes are excluded from the Case-Shiller Index than are included.

But, despite its flaws, the Case-Shiller Index remains important with respect to economic analysis. Much like the government’s Home Price Index, Case-Shiller helps to identify broader trends in housing that shape government and monetary policy.