Shark Wallets Devour 65K BTC in Single Week—Largest Bitcoin Buying Spree of 2025

While traditional finance debates rate cuts, crypto's big players are stacking sats at a staggering pace.

Whale Watching Turns Frenzied

Bitcoin's so-called 'shark wallets'—holders of 100 to 1,000 BTC—just orchestrated one of the most aggressive accumulation cycles in recent history. They scooped up 65,000 bitcoin in just seven days, signaling robust confidence despite macroeconomic uncertainty.

The Silent Accumulation Strategy

These moves don't flash on retail radar screens. No press releases, no CNBC interviews—just cold, calculated blockchain transactions. While Wall Street hedge funds draft 50-page investment theses, crypto natives execute with code and cold storage.

Market Impact and Liquidity Squeeze

That much buying pressure pulls liquidity from exchanges faster than a yield farmer finds the next ponzi. It creates underlying bid support that could fuel the next leg up—or at least put a floor under any correction.

Because nothing says 'institutional adoption' like anonymous wallets outsmarting entire investment banks while wearing digital shark costumes.

While there may be an overlap between corporate wallets and shark wallets, the larger inflows suggest a period of silent accumulation, not linked to any widely known organization or corporation. 

Shark wallets signal accumulation before BTC rallies

Shark wallets have grown in both number and absolute holdings in the past year. Based on CryptoQuant data, shark wallets are the biggest factor for a supply squeeze. 

For the past 12 months, over 3,000 new shark wallets were created, for a total of 16,430 shark addresses in September. Accumulation in those wallets also accelerated in the past few days. In total, shark wallets hold around 3.8% of the BTC supply, as a mix of potential corporate entities, retail, and whales, with the intention of trading or holding. 

Treasury-building whales may be showing some signs of fatigue, but this does not affect shark wallets, which accelerated their buying in September. 

According to CryptoQuant, shark wallets boost two major trends – outflows from exchanges and long-term holding. Medium-range buyers suggest some of the coins on exchanges may be sent to self-custodied wallets for long-term storage. 

Even for treasuries, the cut-off BTC ownership is now up to 83 BTC, close to the range of the smaller shark wallets. Regular sharks are thus getting close to the range of treasury holders, adding to the narrative of long-term storage value for BTC.

BTC flows out of exchanges, but Binance deposits grow

The total supply of BTC available on exchanges has fallen further to 2.4M coins. This includes all markets, even smaller platforms with a worse reputation. BTC withdrawals may be due to demand for self-custody or a shift to derivative trading. 

Spot exchanges hold a little over 1M BTC, comparable to the reserves of corporate buyers. The buying in the past year is seen as adding to the supply squeeze, as whales and long-term holders have not shown capitulation, except for limited strategic selling. Reserves are at an all-time low, with miners also holding onto their recently produced coins. 

Buying behavior can also switch within days. Previously, BTC and crypto showed a dominance of market takers for sale orders. However, as BTC showed signs of recovery, market taker volume switched to buying, loading up on available coins. 

The 2025 bull market comes with increased institutional and whale activity. There are still no decisive signs of retail activity, which were observed during the last stages of previous bull markets. 

Based on the spot market heatmap, traders are also ready to buy the dip, establishing a strong support around $112,000 per BTC. While some traders paid attention to altcoins, BTC sees silent accumulation in preparation for the next expansion cycle.

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