Algotraitor

API features

• sell stock
• buy stock
• get your current holdings
• get price of a particular stock
• get price of all stocks (dump)
• see how much money you have
• see whether or not you are in the lead.
• get a trade listing timeline? <- here, I was thinking about providing 100% information [ who, buy/sell, amount, what, price ]
• access certain market indexes (overall, top n, etc)?

Market characteristics

• All participants are price takers. Orders execute immediately at the market price.
• All price movements are simulated by the server. (affected by other players actions)
• Spontaneous price movements do occur, to simulate activity of hidden players, but the main focus should be player vs. player interaction. Still have to have a significant random component so that one player can't manipulate the overall volatility by injecting or withholding liquidity.
• Potential black swan events. Crash one stock, etc. Can make this limitlessly complex by adding more events and triggers... simulate algo trades.