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Bitcoin HODL Waves are one of the most visually compelling and analytically powerful on-chain charts in Bitcoin analysis. By showing what percentage of the total Bitcoin supply last moved at different points in time — 1 day ago, 1 week ago, 1 month, 6 months, 1 year, 2 years, 5 years — HODL Waves reveal the composition of the holder base and how it shifts across market cycles. Understanding HODL Waves helps investors distinguish between genuine accumulation and short-term speculation — and recognize where in the cycle we actually are.

What Are Bitcoin HODL Waves?

HODL Waves is a chart that visualizes the age distribution of Bitcoin's unspent transaction outputs (UTXOs). Every time a Bitcoin is transacted, its age "resets" — it joins the newest band on the chart. Bitcoin that hasn't moved in years accumulates in the older bands.

The chart was first published by Unchained Capital in 2018 and has since become one of Glassnode's most referenced visualizations. The name references the famous "HODL" meme — the commitment of long-term holders to not sell regardless of price.

The Age Bands

HODL Waves typically group supply into these age cohorts:

• 1 day – 1 week (very short-term)
• 1 week – 1 month
• 1 month – 3 months
• 3 months – 6 months
• 6 months – 1 year
• 1 year – 2 years
• 2 years – 3 years
• 3 years – 5 years
• 5 years – 7 years
• 7 years – 10 years
• 10 years+ (the "Satoshi era" coins)

Younger bands sit at the bottom of the stacked chart. Older bands sit above. As market conditions change, these bands expand and contract — creating the characteristic "wave" pattern that gives the visualization its name.

How to Read HODL Waves

Young supply expanding = speculation increasing

When the younger age bands (1 day to 3 months) grow significantly, it means recently-acquired Bitcoin is being sold or moved frequently. This typically happens during bull markets, when new buyers enter and speculative trading activity increases. As the market heats up, more supply migrates into the youngest bands. Historically, peak expansion of young supply has coincided with cycle tops — precisely because the short-term speculative crowd is most active near the highs.

Old supply expanding = conviction accumulation

When the older bands (1 year+, 2 years+, 5 years+) grow, it means supply is being held longer without being sold. This "coinbase maturation" happens when long-term believers accumulate during bear markets and never sell. When 1-year+ supply reaches multi-year highs, it typically signals deep accumulation — holders who bought near cycle lows are demonstrating patience that the market has not yet rewarded with higher prices.

Old supply contracting near cycle tops

A useful HODL Waves signal is when older supply starts to decrease — meaning long-term holders who have been accumulating for years finally begin to distribute. This "HODLer distribution" into the hands of short-term buyers is a classic late-cycle dynamic. The old supply doesn't disappear — it moves into younger bands as long-term holders sell to eager new buyers.

HODL Waves Across Bitcoin's Market Cycles

2017 Bull Market

As Bitcoin approached $20,000 in late 2017, the HODL Waves chart showed a dramatic expansion of young supply. New buyers entered in waves, and short-term coins dominated the chart. After the peak, much of this young supply either sold at a loss or became the 2018 bear market's new long-term holders — shifting into older bands over the following years as capitulation gave way to conviction.

2018–2020 Accumulation

During the 2018 bear market and 2019–2020 accumulation phase, the older bands expanded significantly. Supply that last moved in 2017–2018 was held through the bear and accumulated by new entrants who didn't sell. By early 2020, the 1-year+ supply was at historically high levels — a classic HODL Wave signal that the next bull phase was being built on a foundation of high-conviction holders.

2021 Bull Market and Peak

The 2020–2021 bull market produced another dramatic young-band expansion. The difference from 2017 was notable: even as price hit $69,000, the older bands remained large — reflecting institutional and long-term holders who bought in 2018–2020 and were not yet distributing at scale. After the November 2021 peak, the young bands contracted as speculative buyers either sold or became reluctant holders.

2022 Bear Market

The 2022 bear market accelerated the process of supply aging. Short-term holders who bought in 2021 either sold at losses (capitulation) or held and had their coins age into longer-term bands. By late 2022, the 1-year+ and 2-year+ bands were again elevated — demonstrating the patience of those who bought in 2021 and refused to sell despite 70%+ drawdowns.

HODL Waves and Long-Term Holder Supply

A related metric derived from HODL Waves is Long-Term Holder (LTH) Supply — typically defined as Bitcoin that hasn't moved in 155+ days (the approximate threshold at which coins become statistically unlikely to be sold in response to short-term price moves). LTH Supply and Short-Term Holder (STH) Supply together provide a more binary view of the same dynamic that HODL Waves captures in full age-band detail.

When LTH Supply reaches all-time highs, it means a historically unprecedented amount of Bitcoin is being held by conviction investors. This has been a reliable leading indicator of cycle maturation — the supply available for short-term trading shrinks, creating conditions for supply shocks when new demand enters.

HODL Waves vs. Other Cycle Indicators

• MVRV Z-Score — measures valuation (market cap vs. realized cap). HODL Waves measures behavior (how long supply is held). They're complementary: high old-band HODL Waves + low MVRV = ideal accumulation signal. High young-band HODL Waves + high MVRV = elevated cycle-top risk.
• NUPL (Net Unrealized Profit/Loss) — measures aggregate holder profit. HODL Waves reveals which age cohort holds that profit/loss. Understanding that older holders are profitable (and not yet selling) vs. new buyers are at a loss (capitulation) gives context that NUPL alone can't provide.
• Reserve Risk — measures the opportunity cost of holding (HODL Bank). Reserve Risk and HODL Waves are deeply related: when older bands expand, the HODL Bank grows and Reserve Risk falls, confirming the accumulation signal from both angles.
• SOPR — measures whether coins are being sold at profit or loss. HODL Waves shows which age cohort is active; SOPR shows whether those active coins are profitable. Combined, they can distinguish normal profit-taking from capitulation.

Practical Applications of HODL Waves

Gauging cycle phase

The ratio of old supply to young supply gives a rough read on where in the cycle you are:

• Old supply dominant, growing: Bear market floor or early accumulation phase. This is where patient buyers create the foundation for the next bull market.
• Mixed / transitioning: Mid-cycle. Both cohorts active. Price is rising but not euphoric.
• Young supply dominant, growing: Late bull market. Speculative activity is high. New buyers are dominant. Distribution risk elevated.

Confirming conviction at cycle lows

When price is low but old-band supply keeps growing rather than selling, it's direct on-chain evidence that experienced holders don't believe the low is permanent. This "diamond hands" behavior is a fundamental input into indicators like Reserve Risk and the NakamotoNotes Barometer.

Watching for distribution signals

If old-band supply starts shrinking while price is still rising, it's an early warning that long-term holders are distributing. This "seller exhaustion" signal can precede cycle tops by weeks or months.

Limitations of HODL Waves

• Exchange custody distorts readings. Bitcoin held on exchanges moves frequently for internal accounting purposes — not always representing genuine selling. Exchange-adjusted versions of HODL Waves attempt to correct for this but add their own assumptions.
• Lost coins don't sell. Old-band supply includes permanently lost Bitcoin (Satoshi's coins, early mining coins lost to hard drive failures, etc.). This supply will never move regardless of price, making the oldest bands partly structural rather than behavioral.
• Interpretation requires context. Young bands growing during a bull market is normal — it doesn't automatically mean the top is near. Old bands growing in a bear market is normal too. The signal is in the rate of change and the relative extremes.
• Not a precise timing tool. HODL Waves identifies the phase of the market, not the specific turning point. Like most on-chain indicators, it's best used in combination rather than as a standalone signal.

Frequently Asked Questions

Where can I see Bitcoin HODL Waves?

Glassnode and Unchained Capital publish HODL Waves with live on-chain data. The NakamotoNotes app tracks related metrics — MVRV Z-Score, NUPL, and Realized Price — that are directly derived from the same on-chain cost basis logic as HODL Waves. Download on the App Store or Google Play.

What does it mean when HODL Waves show a lot of old supply?

High old-band supply (1 year+, 2 years+, 5 years+) means a large proportion of Bitcoin hasn't been sold or moved in a long time. This indicates strong holder conviction — typically a bullish signal for long-term investors, as it reflects that supply available for short-term selling is constrained. Historically, peaks in long-term holder supply have preceded bull markets.

Is HODL Waves the same as Long-Term Holder Supply?

Related but different. HODL Waves shows the full distribution of supply across all age bands. LTH Supply is a binary aggregation: supply held for 155+ days (long-term) vs. under 155 days (short-term). HODL Waves provides more granularity; LTH/STH Supply provides a cleaner headline metric. Both measure the same underlying on-chain behavior.

Can HODL Waves predict Bitcoin price?

HODL Waves don't predict price directly — they describe the structural composition of the holder base. But because supply distribution shapes how Bitcoin responds to new demand, understanding HODL Waves gives investors an edge in assessing whether the market is positioned for a bull or bear phase. Combined with valuation metrics like MVRV Z-Score and the Mayer Multiple, HODL Waves is part of a complete cycle analysis toolkit.

Conclusion

Bitcoin HODL Waves provide a unique window into the behavioral composition of the Bitcoin holder base. By showing how supply ages — and when it moves — HODL Waves reveal the invisible shifts between speculative short-term trading and long-term conviction holding that drive Bitcoin's repeating market cycles.

For investors who want to move beyond price-only analysis, HODL Waves are essential context. When old bands dominate and grow, the market is building a foundation. When young bands surge, speculation is peaking. Recognizing this pattern — and combining it with valuation indicators like MVRV Z-Score and NUPL — is the foundation of data-driven Bitcoin investing.

Track Bitcoin's daily cycle signals with the NakamotoNotes Bitcoin Barometer.