Median Sale Price: The Most Misunderstood Metric
Median sale price is the middle point—half of homes sell above it, half sell below. It's different from average (mean) price, which is skewed by luxury sales. If you sold 10 homes for $100k, $110k, $120k, $130k, $140k, $150k, $160k, $170k, $180k, and $5 million, the average would be $570k, but the median would be $145k. The median tells you what a typical home actually costs in your market.
But here's the catch: a changing median can be misleading. If median price jumped 10% year-over-year, that might mean home values appreciated 10%. Or it might mean different homes sold this year—maybe more luxury homes or more homes in desirable neighborhoods. You need to compare same-type homes in the same location to understand true appreciation.
Use median price as a baseline, but always dig deeper. A median price of $350,000 tells you less than knowing that 3-bedroom, 2-bath homes in the $350k range take 45 days to sell on average. That context matters.
Days on Market (DOM) and Price Momentum
Days on Market measures how long a home sits listed before it sells. Low DOM (under 30 days) signals a hot market where homes sell fast. High DOM (60+ days) suggests homes are overpriced or the market is cooling. But DOM alone doesn't tell the full story.
In a hot seller's market, 20-day DOM is typical. In a balanced market, 45 days is normal. In a buyer's market, 90+ days is common. What matters is the trend. If DOM is rising month-over-month, that's a signal the market is shifting from sellers to buyers. Properties are taking longer to sell, which means buyers get more negotiating power.
Also check what 'days on market' actually measures. Some metrics include the time before relisting (if a home was delisted and relisted). Others reset the clock on relisting. Properties that were listed, delisted, and relisted months later shouldn't count as a 10-day sale—but some data sources do exactly that. Read the methodology.
Months of Supply: Your Crystal Ball into Market Direction
Months of Supply answers this question: at the current sales pace, how many months would it take to sell all the homes currently on the market? The formula is simple: Active Inventory ÷ Sales per Month = Months of Supply.
A balanced market typically has 4-6 months of supply. Below 4 months, it's a seller's market—there aren't enough homes to satisfy buyers, so prices rise and homes sell fast. Above 6 months, it's a buyer's market—there are plenty of homes to choose from, so prices stabilize or fall, and negotiating power shifts to buyers. When supply exceeds 12 months, that's a buyer's market with significant leverage.
This metric is incredibly useful for long-term decisions. If you're considering buying, a high months-of-supply reading suggests waiting—prices may continue to soften. If you're selling, low months of supply suggests listing now before more inventory hits the market. Months of supply is the single best indicator of market direction over the next 3-6 months.
Sale-to-List Ratio: What Homes Really Sell For
Sale-to-list ratio measures what homes actually sell for compared to listing price. If homes are listing for $300k but selling for $295k on average, the ratio is 98.3%—homes are selling below asking. If homes are selling for $310k when listed at $300k, the ratio is 103.3%—strong buyer demand driving prices above asking.
A ratio below 100% indicates a buyer's market where sellers are cutting prices to move inventory. A ratio above 100% indicates a seller's market where competition drives prices up. The trend matters more than the absolute number. A declining ratio over three months signals the market is shifting toward buyers, even if the current ratio is still 102%.
One caveat: sale-to-list ratio can be distorted by listings priced aggressively low to generate bidding wars. A home listed at $300k might get 12 offers and sell for $340k, creating a 113% ratio—but the seller intentionally underpriced it. This is why you should use this metric in combination with others, not in isolation.
The Zestimate and ZHVI: Automated Appraisals with Limits
The Zestimate is Zillow's automated estimate of a home's value. It's powered by machine learning that analyzes millions of public records, prior sales, and property characteristics. For homes with recent sales data, Zestimates are often within 5-10% of actual value. But for unique properties, homes in emerging neighborhoods, or areas with sparse sales data, Zestimates can be wildly off.
The Zillow Home Value Index (ZHVI) is the median home value for a specific market. It's updated monthly and helps you track price appreciation over time. If ZHVI was $350,000 last March and $365,000 this March, home values in that market appreciated 4.3%. ZHVI is useful for understanding long-term trends, but it's not a precise predictor of your specific home's value.
Here's the key: Zestimates and ZHVI are tools, not gospel. A professional appraiser, comparable sales analysis, and market context matter far more. Don't make a $50,000 negotiating move based on a Zestimate. Use it as one data point among many. For serious decisions, get a real appraisal or a professional market analysis.
Inventory and New Listings: Supply Tells the Story
Active Inventory is the total number of homes currently for sale in a market. Rising inventory signals a cooling market—more options for buyers, less urgency to buy. Falling inventory signals a heating market—fewer options, more competition, prices rising. But context matters enormously.
If inventory was 500 homes last month and is 520 this month, is that a rise or a fall? Only in context. If historical average inventory is 600 homes, then 520 is actually low. If average is 400, then 520 is elevated. Compare current inventory to three-year and five-year averages to understand whether your market is truly understocked or oversupplied.
New Listings per Month shows how many homes are entering the market. In spring, new listings spike. In winter, they drop. Compare new listings to the same month from prior years. If new listings in March 2026 were 200 and March 2025 were 250, that's a decline—fewer sellers are listing. This can signal falling confidence, which eventually impacts prices as fewer homes come to market.
Use our market comparison tools to track these metrics over time and spot trends before they're obvious.
Price-to-Rent and Price-to-Income: Affordability Indicators
The Price-to-Rent ratio divides median home price by annual rental income. In a market where the median home is $350,000 and annual rent on a comparable home is $18,000, the price-to-rent ratio is 19.4. A higher ratio suggests buying is expensive relative to renting. A lower ratio suggests buying is relatively affordable.
Historically, a price-to-rent ratio between 15 and 20 suggests relative balance between buying and renting. Below 15, buying might be the better deal. Above 25, renting might be smarter. But this varies by region. Expensive coastal markets often have ratios above 25 because they're desirable. Affordable Midwest markets might be at 12. Use this metric to compare your market to national average and to historical norms for your specific area.
Price-to-Income ratio divides median home price by median household income. If the median home is $350,000 and median household income is $65,000, the ratio is 5.4. Historically, ratios between 3 and 4 are considered affordable. Above 5, housing is stretching household budgets. A ratio of 6+ indicates severe affordability stress. Use this to understand whether a market is within reach for average earners.
Both metrics help you understand whether a market is overheated or reasonable. High ratios don't mean don't buy—they mean you're stretching financially and should be more conservative with your offer.
Year-Over-Year Change: Trends Trump Snapshots
Any single data point is a snapshot. Trends are the movie. A median price of $350,000 is just a number. A median price of $350,000 that's up 8% from last year while days on market increased from 35 to 42 and months of supply rose from 3.2 to 4.1—that tells you the market is cooling and buyer power is increasing.
Track year-over-year changes in: median price, days on market, months of supply, active inventory, new listings, and sale-to-list ratio. If most metrics are moving in the same direction, that's a confirmed trend. If median price is up but inventory is rising, days on market are increasing, and sale-to-list ratio is falling, that's a mixed signal—price may be lagging reality.
The best decisions come from data that's at least 3 months old and trended for at least 6-12 months. Month-to-month noise is meaningless. Quarterly and annual trends reveal true market direction. If you're buying, watch these metrics quarterly for the next year before making an offer. If you're selling, launch when market indicators start moving in your favor, not after they've fully shifted.