Bitcoin’s Exchange Supply Decline Isn’t Driving the Same Optimism It Once Did

Bitcoin’s declining exchange reserves no longer guarantee the same bullish outcome

Santiment reported that Bitcoin’s exchange-held supply has fallen to its lowest level since 2017, while Ethereum’s exchange reserves have reached their lowest point since 2015. The analytics firm said the trend does not necessarily mean prices will rise immediately, but it could help create a foundation for the next major crypto bull market.

One of Bitcoin’s most recognized long-term bullish indicators continues to circulate among investors, although its influence has weakened compared with previous cycles.

Historically, a decline in BTC held on centralized exchanges has been viewed as a positive signal. The reasoning is that when investors withdraw Bitcoin into private wallets, fewer coins remain available for selling, which can reduce market supply and potentially support higher prices.

This interpretation has remained a key part of Bitcoin’s investment narrative for years, according to blockchain analytics firm Santiment.

“Historically, extended periods of declining exchange supply have often occurred before multi-quarter bull markets,” said Mark Zalan, CEO of GoMining, a tokenized retail mining platform. However, he noted that identifying the exact start of a new bull cycle is difficult and warned that anyone claiming certainty is likely making an assumption rather than a prediction.

Despite its historical importance, the exchange reserve metric has lost some of its strength as a market indicator. Bitcoin balances on exchanges have stayed near record lows for months, even as the cryptocurrency has struggled to recover and remains significantly below its previous all-time high.

Some industry participants believe the metric has become outdated because it fails to account for the rise of institutional custody, exchange-traded funds, and alternative ways investors hold Bitcoin.

“Low exchange supply was once viewed as a straightforward bullish signal,” said Eneko Knorr, CEO of Stabolut. “But we have had extremely low supply levels for more than a year. The crypto market has evolved, and much of that Bitcoin has simply moved into different areas, including DeFi protocols, staking platforms, yield strategies, and institutional vaults.”

Santiment recently highlighted that Bitcoin and Ethereum exchange supplies have dropped to historic lows, calling the trend one of the strongest long-term indicators in crypto markets. According to its data, Bitcoin held on exchanges represents around 6.6% of circulating supply, while Ethereum’s exchange balance accounts for approximately 4.3%.

“Bitcoin and Ethereum are showing one of crypto’s most encouraging long-term trends: coins are staying away from exchanges,” Santiment said, explaining that fewer assets are immediately available for selling despite recent market volatility.

Since Bitcoin and Ethereum make up nearly 66% of total crypto market capitalization, Santiment believes reduced exchange supply could contribute to the setup for a future sustained bull market. However, the firm added that the market has not yet entered a full bullish phase.

The Bitcoin market has entered a new era

The meaning behind declining exchange balances has changed as the crypto industry has matured.

Bitcoin leaving exchanges does not always indicate that investors are moving coins into long-term cold storage. Some BTC is converted into wrapped assets such as WBTC and deployed across decentralized finance platforms, where it remains active through lending, trading, and collateral use.

The growth of spot Bitcoin ETFs has further changed the market structure. As ETF demand increases, issuers purchase Bitcoin through exchanges and over-the-counter markets before placing those assets into institutional custody.

While these coins disappear from exchange reserve data, ETF shares continue to trade actively on traditional financial markets, giving investors liquid exposure to Bitcoin.

Analysts argue that exchange balance data does not fully reflect this growing financialization of BTC. This limitation has become increasingly important as ETFs gain popularity. Coinglass data shows U.S. spot Bitcoin ETFs hold about $73 billion in assets, representing more than 641,400 BTC. Ethereum ETFs hold approximately $13.7 billion, equal to around 7.7 million ETH.

“The overlooked development is that this metric reflects the transition away from the old exchange custody model,” said Ben Nadareski, CEO of Solstice. “The key question is no longer just how much Bitcoin leaves exchanges, but where those assets are moving.”

Nadareski explained that Bitcoin is increasingly shifting toward two destinations: regulated institutional custody and productive on-chain financial applications.

The belief that declining exchange balances always lead to market rallies has also been challenged. In 2022, exchange supply remained relatively low even as Bitcoin experienced a major price collapse.

Bitcoin accumulation remains a major trend

Although exchange reserves may no longer be a perfect bullish indicator, long-term Bitcoin accumulation continues across institutions, corporations, and investors.

“More than 130 publicly traded companies now hold Bitcoin on their balance sheets, while spot ETFs have continued absorbing BTC into regulated custody,” Zalan said.

Bitcoin Treasuries data shows public companies hold roughly 1.26 million BTC, private companies hold about 281,752 BTC, government entities hold nearly 649,954 BTC, and DeFi protocols hold around 369,595 BTC. ETFs and exchanges collectively account for approximately 1.62 million BTC.

The same data indicates that treasury companies hold about 7.25 million ETH.

When combined with nearly 7 million Bitcoin believed to be sitting in dormant wallets, almost 11.2 million BTC is currently outside active trading activity. This represents roughly 56.5% of Bitcoin’s circulating supply of about 20.05 million coins.