Media coverage about what’s happening with home prices can be confusing. A large part of that is due to the type of data being used and what they’re choosing to draw attention to. For home prices, there are two different methods used to compare home prices over different time periods: year-over-year (Y-O-Y) and month-over-month (M-O-M). Here’s an explanation of each.
Year-over-Year (Y-O-Y):
- This comparison measures the change in home prices from the same month or quarter in the previous year. For example, if you’re comparing Y-O-Y home prices for April 2023, you would compare them to the home prices for April 2022.
- Y-O-Y comparisons focus on changes over a one-year period, providing a more comprehensive view of long-term trends. They are usually useful for evaluating annual growth rates and determining if the market is generally appreciating or depreciating.
Month-over-Month (M-O-M):
- This comparison measures the change in home prices from one month to the next. For instance, if you’re comparing M-O-M home prices for April 2023, you would compare them to the home prices for March 2023.
- Meanwhile, M-O-M comparisons analyze changes within a single month, giving a more immediate snapshot of short-term movements and price fluctuations. They are often used to track immediate shifts in demand and supply, seasonal trends, or the impact of specific events on the housing market.
The key difference between Y-O-Y and M-O-M comparisons lies in the time frame being assessed. Both approaches have their own merits and serve different purposes depending on the specific analysis required.
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