Everyone talks about whether the market is "hot" or "cooling."
Here's what actually matters.
If you follow real estate at all, you've probably heard someone say the market is overheated, or that things are finally cooling off, or that it's a great time to buy, or that you should wait. Most of that is noise.
The number that actually tells you what's going on is months of supply. It's a simple metric: if no new homes came on the market, how many months would it take to sell everything that's currently listed? That one number tells you more about where the market stands than any headline.
What the numbers mean.
A balanced market, the kind that's healthy for buyers, sellers, and long-term property values, typically sits around five to six months of supply. At that level, pricing tends to grow at a sustainable pace, buyers have enough options to make good decisions, and sellers can get fair value without sitting on the market for months.
Below five months and you're in a seller's market. Fewer homes available means more competition, faster sales, and prices that tend to climb. Below three months and things start to overheat. Bidding wars, waived inspections, and prices that disconnect from what the local economy can actually support.
Above six months and it tips toward buyers. More inventory means more negotiating power, lower prices, and sellers who may need to get creative to attract offers.
Where the Treasure Valley sits right now.
As of early 2026, Ada County is sitting at around 2.0 months of supply. Canyon County is slightly higher at 2.4 months. Both are still well below the five to six months that would signal a balanced market, but they've improved compared to the tightest periods of the past few years.
What that means in practice: the median sales price in Ada County reached $538,000 in February 2026, up 1.5% year over year. That's modest, stable growth, not the double-digit spikes the valley saw a couple of years ago. Homes are averaging about 60 days on market, which gives buyers a bit more time than they had during the peak, but well-priced homes are still moving.
Canyon County saw a median of $441,990, up 6.0% year over year, with strong activity driven by affordability relative to Ada County.
The short version: the Treasure Valley is still leaning toward sellers, but the market is more balanced than it's been in years. Prices are growing at a pace that feels sustainable rather than speculative.
What happens when inventory stays too low for too long.
Low inventory is great if you're selling a home. It's less great for everyone else.
When supply stays below three months for an extended period, prices tend to outpace local income growth. That means first-time buyers get priced out. Renters who want to buy can't compete. Current homeowners don't list because they can't find anything to move into, which makes the problem worse.
It also creates conditions where buyers make decisions they normally wouldn't. Waiving inspections. Offering well above asking price. Buying in areas they don't actually want to live in because nothing else is available. Those decisions sometimes work out fine. Other times they lead to regret, especially if the market shifts.
And when a market that's been running on low supply and high prices hits a correction, whether from rising interest rates or an economic slowdown, the landing can be rough. Properties that were overvalued at purchase lose equity fast, and owners who stretched to buy can find themselves in a difficult position.
What happens when there's too much inventory.
On the other end, a market with more than six months of supply creates its own set of problems.
Buyers gain negotiating power, which sounds good in theory, but it often comes with declining home values, slower sales, and sellers who either slash prices or pull their listings entirely. For homeowners, watching their property value drop isn't just a paper loss. It affects refinancing options, equity positions, and the ability to sell when they need to.
If rising inventory is driven by economic stress, like job losses, rising rates, or a wave of foreclosures, the effects compound. Neighborhoods with too many vacant or distressed properties can drag down values for everyone around them.
The Treasure Valley hasn't been in that territory recently, but it's worth understanding because it's the other side of the same coin. A healthy market avoids both extremes.
Why this matters whether you're buying, selling, or investing.
If you're a buyer, understanding months of supply tells you how much leverage you have. In a two-month supply market, you need to move fast and be prepared to compete. In a five-month market, you have room to negotiate and time to be selective.
If you're selling, inventory levels tell you how to price. In a low-supply market, you can be more aggressive. In a balanced or high-supply market, accurate pricing and strong presentation become the difference between a quick sale and a listing that sits.
If you're an investor, this is one of the most important metrics to track. Low inventory tends to support rent prices because people who can't buy end up renting longer. But it also means acquisition costs are higher. The sweet spot for investors is often a market that's trending toward balance, where purchase prices stabilize but rental demand stays strong.
The Treasure Valley is in an interesting position right now. Inventory is rising but still tight. Prices are growing but not overheating. Rental demand remains strong across Boise, Meridian, Garden City, and the surrounding areas. For buyers, sellers, and investors who understand where the market actually stands, it's a window worth paying attention to.
The bottom line.
A healthy real estate market isn't about prices going up as fast as possible. It's about balance. Enough inventory that buyers have real choices. Enough demand that sellers get fair value. And enough stability that homeowners and investors can plan with confidence.
Five to six months of supply is where that balance lives. The Treasure Valley isn't there yet, but it's closer than it's been in a while, and that's a good sign for everyone who lives, works, and invests here.
