In its 2014 edition of IC Market Drivers report, IC Insights has released estimated smartphone vendor ranking for the year 2013. They have also predicted smartphone volumes of all vendors for full year of 2013. They have given Nokia 9th vendor rank and have predicted 34 million smartphone shipments for 2013. Now till Q3, Nokia has officially sold 22.3 million smartphones, hence it seems IC Insights predict Lumia sales volume of 11.7 million in Q4 of 2013. This is a growth of 33% Quarter on Quarter considering 8.8 million official Lumia sales figure in Q3.
This is really ambitious growth target, but looks achievable considering Q4 is the holiday quarter and has seasonality going for it.