"We utilize an aggregate source of pricing and liquidity from multiple brokers and liquidity providers. The current liquidity providers use a number of different tier 1 banks, prime brokers, market makers and other liquidity sources to derive their pricing, and those underlying liquidity providers change constantly. Aggregating liquidity providers while maintaining multiple sources of liquidity allows us to provide competitive pricing and execution, while reducing reliance on a sole liquidity provider. All market pricing and trade executions are provided by the brokers, without any alterations or modifications on our part. Moreover, we do not adjust transaction costs such as bid-offer spreads, markups/markdowns or swaps beyond what is set by our brokers. Please note that the composition of liquidity providers may vary depending on the trading platform."