MicroStrategy has invested approximately $2.8 billion to acquire 40,000 bitcoins over the past two weeks, according to tech investor Didier. The company financed this purchase largely through adjustable-rate perpetual bonds, raising between $1.55 billion and $1.6 billion. This marks a strategic shift from selling equity to issuing high-interest perpetual debt to fund bitcoin acquisitions, a model envisioned by Michael Saylor a year ago. This financing approach has reduced pressure on MicroStrategy's stock price and is seen as a key factor in Bitcoin's recent strength.