What is the sentiment of the input news from financial perspective?
Options: positive, negative

Align Technology Inc ALGN reported Q4 sales of $1.03 billion, up 1.5% sequentially and 23.6% Y/Y, surpassing the consensus of $1.02 billion. Thousands of new traders are learning the ins and outs on how to find profitable trades every day with Benzinga Trading School.
positive