According to the source, a post on X dated Oct 2, 2025 claims Saylor's Strategy now holds over 640,000 BTC valued at $73B. According to the source post, it also states that Michael Saylor calls Bitcoin the ultimate treasury asset and projects BTC could reach $1,000,000. According to the source figure and Bitcoin protocol's fixed 21 million maximum supply, 640,000 BTC would represent about 3.0% of the maximum supply, a concentration metric relevant for traders monitoring liquidity and whale-flow risk.