Business Model Fundamentals
Classic brokerage earns from spreads, commissions, and swap fees on client trading activity. Prop trading companies earn from challenge fees and a share of trader profits. The revenue dynamics are fundamentally different: brokerages need high trading volumes from many clients, while prop firms need a large funnel of challenge purchasers with a manageable number of funded traders generating consistent returns.

Revenue and Risk Profiles
Brokerage revenue is more predictable but requires substantial upfront investment in technology, licensing, and liquidity. Prop trading can start with lower capital requirements but carries the risk of funding skilled traders who generate losses. The challenge fee model provides upfront cash flow, but firms must carefully manage the ratio of challenge revenue to funded trader payouts.
Hybrid Approach
Many companies now offer both services. Existing brokers add prop trading modules to attract a new client segment. This hybrid model leverages shared infrastructure while diversifying revenue streams. The key challenge is managing potential conflicts between broker clients and funded traders competing in the same market.