Jobbers or Speculators - Stock Market
1. This is a dealer who that trades in securities in his own right like a principal.
2. He can set prices and make active the market with his own selling and buying thus he is a market maker.
3. He earns profit or benefit and engages in speculation identified Jobbers' turn or selling price - buying price.
4. He does not deal along with members of the public unlike brokers. Though, brokers can sell and buy shares via jobbers.