Software company MicroStrategy Inc MSTR has purchased more Bitcoin BTC/USD, continuing the company's strategy of buying the leading cryptocurrency asset.What Happened: MicroStrategy announced Friday it acquired 18,300 Bitcoin between Aug. 6 and Sept. 12. The announcement comes days after MicroStrategy Executive Chairman Michael Saylor highlighted the company's outperformance compared to all the S&P 500 companies.The software company co-founded by Saylor said the 18,300 Bitcoin were acquired for around $1.11 ...