[Strategy Repurchases $139 Million in STRC, Holds 845,050 BTC and $6.4 Billion in Reserve Assets] BlockBeats News, September 14: Strategy founder Michael Saylor announced that the company has repurchased $139 million worth of STRC. As of September 13, Strategy holds 845,050 BTC and $6.4 billion in reserve assets. Saylor also stated that the average duration of Strategy's USD assets is 3.9 years. Assuming a 10% annualized return on BTC, 40% volatility, and a BTC price of $77,266, the BTC credit spread for STRC is 57 basis points.