The Methodology Behind Market Trends

Market Trends is designed to explain how the market behaves over time. To do that well, it has to account for the fact that real estate activity is uneven, seasonal, and constantly changing.

Listings enter and exit the market at different times. Prices change mid-stream. Closings cluster toward the end of the month. If market data is treated as a simple snapshot, those dynamics are lost. Market Trends takes a different approach—one that emphasizes weighting, timing, and context.

A Different Approach for Inventory

Inventory is one of the most frequently misunderstood metrics in real estate.

Listings do not enter and exit the market evenly throughout the month. Inventory typically builds throughout the month and then declines as closings occur, most of which happen near month-end. Measuring inventory on a single day – particularly the last day of the month – almost always understates the supply buyers encountered.

Market Trends addresses this by calculating average daily inventory across the entire period. Instead of relying on a brief glimpse, inventory is measured each day and averaged. Listings contribute proportionally based on how long they were active.

This approach reflects how the market functioned rather than how it appeared at a specific moment. It also explains why inventory figures in Market Trends may differ from what agents see when checking listings on a given day.

Accuracy Comes from Weighting, Not Guessing

Many of our metrics rely on weighted calculations rather than simple averages. Pricing metrics, for example, account for how long a listing was active or under contract at a given price. Duration metrics reflect how listings progressed through statuses over time, not just final outcomes.

This weighting is what allows Market Trends to convert point-in-time information into reliable period-of-time analysis. It is also why these metrics are difficult – and often impossible – to replicate manually.

The result is a more accurate representation of market behavior, even when the underlying activity is uneven or volatile.

Timeliness Without Sacrificing Reliability

Market data changes most rapidly after the end of a period. Closings are still being entered, statuses are finalized, and late updates can affect results.

Market Trends is designed to be available as soon as a period ends, then gets updated as additional data arrives. Recently completed periods refresh frequently to improve accuracy, while older periods stabilize once the data is complete.

This balance ensures agents have timely insights without locking conclusions prematurely. It also means early-month numbers should be viewed as directional, while later revisions reflect a more complete picture of the market.

Why Rolling Periods?

Real estate markets are seasonal. Comparing activity or pricing from different times of year without context can lead to incorrect conclusions.

Rolling periods smooth seasonal effects and highlight underlying trends. Monthly metrics are useful for explaining recent activity. Rolling metrics are better suited for identifying momentum, shifts in demand, and longer-term changes in supply.

When Market Trends data is viewed through rolling periods, it becomes a strategic tool rather than a historical report.

The Takeaway

By converting daily activity into period-based insight, Market Trends provides a clearer picture of how the market actually behaved. That clarity enables agents and brokers to trust the data and use it with confidence.

Check out Market Trends to see how these insights apply to your market.