What Is Short-Term Holder Cost Basis? A Key On-Chain Level for Reading Bitcoin Market Stress

Introduction

When Bitcoin sells off, traders usually ask two questions: how far can the price fall, and where might buyers step in? Traditional charts answer this with moving averages, support levels, and liquidity zones. On-chain data adds a different angle: it shows where different holder groups are likely sitting in profit or loss.

One of the most useful tools for that job is Short-Term Holder Cost Basis, also known as STH Cost Basis, Short-Term Holder Realized Price, or STH Realized Price. It estimates the average price recent buyers paid for their BTC — in other words, the breakeven line for new money. That makes it especially useful during pullbacks, failed breakouts, and early recovery phases.

Understanding Short-Term Holder Cost Basis

Start with who counts as a "short-term holder." In Glassnode's framework, it is anyone whose coins last moved on-chain within the past 155 days — roughly five months. Think of recent buyers: people who entered during the latest rally or dip, and who are more likely to sell when price turns against them.

Why 155 days? Glassnode studied how coins of different ages behave and found a clear shift around the five-month mark: coins that stay put longer than that rarely move on short-term price swings — their owners act like conviction holders. So 155 days is not a magic number; it is simply where "new money" behavior fades into "old money" behavior in the data.

Now the "cost basis" part. On-chain data cannot see what price you paid on an exchange, but it can see when a coin last moved and what Bitcoin traded on that day. Each coin is marked at that price, as if it were "bought" then. Average this across all coins held by short-term holders, and you get STH Cost Basis. A simple picture: if one recent buyer's coin last moved at $60K and another's at $70K, the group's cost basis is $65K — a rough breakeven line for new money as a whole.

This "price when the coin last moved" method is called realized price, which is why the metric's other name is Short-Term Holder Realized Price.

Why Traders Watch It

Short-term holders react fastest to volatility. The group includes recent entrants, momentum buyers, and leveraged traders — people who feel every swing. Whether they are sitting in profit or in loss shapes how the whole market trades.

That is why comparing spot price with the STH Cost Basis line works as a stress gauge:

• Price above the line: the average recent buyer is in profit. Less panic, less forced selling.
• Price below the line: the average recent buyer is losing money. Every bounce tempts them to sell and break even.
• Repeated rejection near the line: that breakeven selling is capping rallies.
• Holding back above the line: enough new demand came in to absorb the selling — often an early sign of recovery.

One habit matters here: look at weeks, not days. Price can cross the line several times before a real trend forms. A multi-week stay below it means deeper stress; a durable reclaim after a long stretch below can mark a genuine shift in market structure.

Recent Example: Glassnode Week 27, 2026

Glassnode's Week 27, 2026 report gives a useful real-time example. Bitcoin had bounced from $58.3K to $64.4K, but it remained below both the Short-Term Holder Cost Basis at $72.2K and the True Market Mean at $76.6K. True Market Mean is another Glassnode cost-basis model: it estimates the average breakeven of active investors across the whole market, after discounting lost and long-dormant coins. In short, one line marks new money's breakeven, the other the broader active market's — and price was under both.

The point is not that $72.2K is a guaranteed target. It is that recent buyers were still broadly underwater, leaving rallies vulnerable to breakeven selling and external shocks. Glassnode also noted that Bitcoin had traded below both levels since early February 2026, making this roughly five-month period one of the more extended deep-value episodes in Bitcoin's history.

So what should a reader do with numbers like these? Not trade them directly, but let them frame the situation:

• With price at $64.4K and the line at $72.2K, treat rallies as bounces inside a stressed market, not confirmed recoveries.
• Watch how price behaves if it approaches $72.2K. Rejection there would mean breakeven sellers are still in control.
• Only a reclaim that holds for weeks — ideally with stronger spot volume — would suggest the market has genuinely turned.

STH Cost Basis vs. Realized Price vs. MVRV

Short-Term Holder Cost Basis belongs to the same family as other on-chain valuation tools, but each answers a different question.

• Realized Price applies the same "price when coins last moved" math to the entire Bitcoin supply. It is the breakeven line for the whole network, old money included.
• STH Cost Basis applies it only to coins that moved in the last 155 days. Because it tracks new money, it moves faster and reacts more to recent market behavior.
• MVRV divides market price by realized price. Well above 1, the average holder sits on large profits and the market may be overheated; below 1, the average holder is at a loss.

A simple way to separate them: realized price is the network cost basis; STH Cost Basis is the recent-buyer breakeven zone; MVRV shows how far market valuation has moved away from realized value.

What to Monitor Alongside It

Investors can use STH Cost Basis more effectively by watching the surrounding context:

• Whether Bitcoin holds above or below STH Cost Basis for several days or weeks.
• Whether a reclaim happens with stronger spot volume and healthier liquidity.
• Whether ETF flows, stablecoin supply, and derivatives positioning are improving or deteriorating.
• Whether long-term holders realized losses are cooling, showing older-holder sell pressure may be fading.
• Whether Bitcoin is also above broader cost-basis levels such as realized price.

The strongest readings appear when several of these layers agree.

Conclusion

Short-Term Holder Cost Basis turns a messy market question into a simple, measurable one: are recent buyers above or below their breakeven line? As the Week 27, 2026 episode shows, a long stretch below the line means the market is still digesting recent buyer losses — while a reclaim that holds, backed by stronger volume and improving flows, is often the first structural sign that confidence is returning.

Disclaimer

This article is for informational and educational purposes only and does not constitute investment advice. Short-Term Holder Cost Basis is an analytical tool, not a prediction, and no indicator works in isolation. Cryptocurrency markets are highly volatile; always do your own research and combine multiple signals before making financial decisions.