Strategy’s Variable Rate Series A Perpetual Stretch Preferred Stock, traded under STRC, fell below $92 on Friday as Bitcoin’s latest selloff spilled into one of Michael Saylor’s key financing vehicles. STRC traded around $92.38 during the latest market check, down more than 3% on the day, after touching an intraday low near $91.16. The move pushed its effective yield above 12%, based on the current 11.50% annual dividend rate attached to the stock’s $100 stated amount.