What truly causes a housing bubble and the inevitable crash? For the best explanation, let’s go to a person who correctly called the last housing bubble – a year before it happened.
“A bubble requires both overvaluation based on fundamentals and speculation. It is natural to focus on an asset’s fundamental value, but the real key for detecting a bubble is speculation…Speculation tends to chase appreciating assets, and then speculation begets more speculation, until finally, for some reason that will become obvious to all in hindsight, the ‘bubble’ bursts.
I have taken to calling the housing market a ‘bubble’.”
– Bill McBride of Calculated Risk calling the bubble back in April 2005
Where do we stand today regarding speculation?
There are two measurements that are used to determine the speculation in a housing market:
- The number of homes purchased by an investor and
- The number of homes being flipped (resold within a twelve-month period)
As compared to 2005, investor purchases are down dramatically (from 23% to 13%) and so is flipping (from 8.2% to 5.7%). McBride explains:
“There is currently some flipping activity, but this is more the normal type of flipping (buy, improve and then sell). Back in 2005, people were just buying homes and letting them sit vacant – and then selling without significant improvements. Classic speculation.”
What are the experts saying about speculation in today’s market?
DSNews recently ran an article which asked two economists to compare the speculation in today’s market to that in 2005-2007. Here is what they said:
Dr. Eddie Seiler, Chief Housing Economist at Summit Consulting:
“The speculative ‘flipping mania’ of 2006 is absent from most metro areas.”
Tian Liu, Chief Economist of Genworth Mortgage Insurance:
“The nature of housing demand is different as well, with more potential homeowners and far fewer speculators in the housing market compared to the 2005-2007 period.”
And what does McBride, who called the last housing bubble, think about today’s real estate market?
Sixty days ago, he explained:
“In 2005, people were just buying homes and letting them sit vacant – and then selling without significant improvements. Classic speculation. And even more dangerous during the bubble was the excessive use of leverage (all those poor-quality loans). Currently lending standards are decent, and loan quality is excellent…
I wouldn’t call house prices a bubble – and I don’t expect house prices to decline nationally like during the bust.”
Bottom Line
Speculation is a major element of the housing bubble formula. Right now, there are not elevated percentages of investors and house flippers. Therefore, there is not an elevated rate of speculation.
Chrysti Tovani is a Fair Oaks Real Estate Advisor, Transition Specialist, and the author of Downsizing with Intention. She helps homeowners sell long held homes, downsize with clarity, and navigate major life transitions with confidence and strategic guidance.
With decades of experience in real estate, mortgage, and title, Chrysti brings deep industry knowledge and thoughtful preparation to every transaction. Her approach blends strategic home marketing, skilled negotiation, and emotional intelligence, ensuring that each move is handled with both precision and care.
As the founder of I Love Fair Oaks, a hyperlocal media platform highlighting trusted businesses and community life in Fair Oaks, California, Chrysti has built an integrated authority ecosystem that connects real estate expertise with community leadership.
Her work centers on clarity, visibility, and long term legacy, helping clients move forward with confidence while strengthening the community she serves.
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