How to Become a Sub Broker? Share: In India, the stock market has lately been experiencing a meteoric rise in popularity. In fact, in the first half of the year 2020 alone, there’s data that clearly shows that millions of demat accounts have been opened by retail individuals. However, retail individuals and institutional investors alike are not allowed to trade directly with the stock exchanges. They can only do so through a stockbroker. And with an ever-growing number of individuals wanting to trade in the stock markets and only a handful of stockbroking houses to service such a huge and expanding client base, the opportunities for sub brokers have now become more widespread than ever. Sub broking can be an exciting opportunity for aspiring entrepreneurs looking to establish their own business. Continue reading to know all about who a sub broker is and how to become a sub broker.