Subscriber content previewHolidays and a viral bear cup drive strong quarterly sales at StarbucksStarbucks Chairman and CEO Brian Niccol said the results show turnaround efforts are working. By DEE-ANN DURBINAP Business WriterPhoto by Joshua Trujillo/Starbucks [enlarge] The $29.95 glass Bearista cups sold out almost immediately during the holidays. Starbucks reported strong fiscal first quarter as holiday drinks and a viral bear cup helped drive sales. login or purchase a To read this story in fullor purchase a subscription.