BlackBerry is trading 9.34% down at $11.65 amid a sharp selloff across software stocks. - Sector pressure followed disappointing results and outlooks from ServiceNow and Fortinet, alongside concerns about returns on AI investments. - Software ETF IGV was reported down about 4%. - Recent BlackBerry news was positive, including raised annual guidance and QNX growth; available reporting surfaced no stronger company-specific catalyst for the October 30 move.