Okay, so Robert has a strong background in finance, with skills like equities, derivatives, and trading systems. He's worked in investment banking and prime brokerage, which are high-demand areas. Location is Manhasset, NY, which is a hub for finance. Considering his expertise and experience, he could charge a premium rate. Let’s look at benchmarks. Investment bankers and traders with similar skills can earn $200-$500 per hour. With his experience and skills, he might average around $300-$400 per hour. However, given his expertise in prime brokerage and trading systems, I’d estimate his rate to be on the higher side, around $250 per hour.