Bitcoin rose about 1.6% to trade near $63,700 on Aug. 4 after CNBC host Jim Cramer said he planned to sell his holdings because of concerns about quantum computing.
Summary
- Cramer said he plans to sell Bitcoin after IBM chief Arvind Krishna raised quantum concerns.
- Bitcoin traded near $63,700, gaining 1.6% despite Cramer’s warning and weak spot market liquidity conditions.
- Google estimates fewer than 500,000 physical qubits could eventually break widely used elliptic curve cryptography.
- Glassnode classifies 1.92 million Bitcoin, or 9.6% of supply, as structurally exposed to quantum attacks.
- A 16,400 Bitcoin whale transfer moved funds between wallets, not onto any identified cryptocurrency exchange.
Cramer tied the decision to a CNBC interview with IBM Chairman and CEO Arvind Krishna. Krishna said investors should become “paranoid” about cryptocurrency security within three to four years. Cramer later said, “I’m going to sell mine.” Neither the size of his holdings nor evidence of an executed sale has been disclosed.
Bitcoin rises despite Cramer’s sell plan
Bitcoin climbed from an intraday low near $62,387 to as high as $64,117 before easing. The recovery left the asset about 1.6% higher over 24 hours, although the price remained inside the range that has controlled trading since the June decline.
The market reaction does not prove traders dismissed Cramer’s warning. Bitcoin was also absorbing Strategy’s recent sale, miner distribution estimates and the Coldcard security incident. As crypto.news reported, buyers continued defending the area above $60,000 despite those pressures.
The TradingView daily chart supplied with the story shows Bitcoin consolidating after its sharp June decline. Support remains near $60,000, while $65,000 to $67,000 is the main resistance zone. Volume near 5,950 BTC appeared modest compared with earlier selloff periods, suggesting the rebound still lacked strong participation.
A sustained move above $67,000 would strengthen the recovery case. Until that happens, the price remains range bound rather than in a confirmed new uptrend.
Quantum warning describes a future risk
Krishna’s three to four year estimate is a forecast, not proof that a quantum machine can currently break Bitcoin. IBM’s official roadmap targets a large scale, fault tolerant system called Starling for 2029. The company says the planned machine would use 200 logical qubits and perform 100 million quantum operations. IBM has not claimed that Starling could recover Bitcoin private keys.
Google Quantum AI tightened the theoretical risk estimate in March. Its researchers said a future cryptographically relevant quantum computer could solve the elliptic curve problem used by many digital assets with fewer than 500,000 physical qubits under stated hardware assumptions. The estimate was about 20 times lower than previous calculations.
However, Google described this as a future capability. It urged blockchains to begin moving toward post quantum cryptography before such machines become available. Current systems do not have the scale and error correction needed to conduct the proposed attack.
Glassnode has measured which Bitcoin outputs could face exposure if that capability emerges. Its May analysis classified 1.92 million BTC, or 9.6% of issued supply, as structurally exposed because the associated public keys are already visible.
It placed another 4.12 million BTC in an operationally exposed category linked largely to address reuse and custody practices. Glassnode explicitly said its study did not predict whether or when a practical quantum attack would become possible. As crypto.news reported, the figures measure exposure rather than an active theft risk.
Whale transfer and thin trading add caution
Blockchain tracker Lookonchain reported that a wallet holding 16,400 BTC, worth about $1.04 billion, transferred its full balance to a new address after seven months of inactivity.
The transaction was a wallet to wallet movement. The funds did not go directly to an identified exchange, meaning the transfer does not establish that the holder was preparing to sell. It may have reflected custody changes, security measures or internal wallet management.
Market depth remains a separate concern. The Kobeissi Letter, citing Kaiko data, said daily spot activity across 44 exchanges fell to about $15 billion, around 70% below its January peak.
The underlying Kaiko dataset was not available in a public report reviewed for this article. The $15 billion figure should therefore remain attributed to the post rather than treated as an independently confirmed market total.
Social media users also revived the “inverse Cramer” meme, which treats his bearish calls as contrarian buy signals. The meme reflects several widely discussed calls that later moved against him, but it is not a tested indicator and does not explain Bitcoin’s price movement by itself.
Bitcoin must reclaim $67,000
Bitcoin’s immediate test remains the $65,000 to $67,000 resistance band. A sustained close above that area, supported by stronger volume, would improve the short term structure. Failure to maintain the current recovery could return attention to $62,000 and then the key $60,000 support level.
The longer term question is whether developers, exchanges and custodians accelerate preparations before quantum computers become cryptographically relevant. Bitcoin companies have begun funding post quantum research, while BitGo recently introduced four wallet controls designed to measure and reduce public key exposure.
Cramer’s statement does not change Bitcoin’s current security, and no practical quantum computer is known to have broken its cryptography. The next verified developments would include evidence that Cramer completed a sale, movement of the 16,400 BTC toward an exchange, stronger spot volume or measurable progress on Bitcoin’s post quantum migration plans.
