I recently started training at a prop firm which emphasizes a âmake the market strategyâ. I was wondering if any of you have tried this on a simulator and then did it with real money. Is there a big difference, not psychologically, but in terms of execution? Guys here are making decent monopoly money on the simulator with this strategy, but I am not convinced that they can do this in the real world because the execution wouldnât be the same. I think they get the best possible bid/offer (depending on the side) on every trade. So basically, what is the difference between the executions in a simulator in comparison to real life (the platform is Lightspeed Trading)? Secondly, what are some good stocks to try to âmake the marketâ on? What are their characteristics (i.e. big spread, liquid, price is consolidating, etc.)? I tried to do this strategy with Google and some other tech stocks, but it didnât work well. Any suggestions? What should I focus on when I practice this strategy? What are some reliable indicators? Are the Level II orders the most important? Finally, is there a difference between NYSE stocks and NASDAQ stocks considering the specialist/market-maker business?