Build a merc.
Pick the stocks, the signals, the exits and the risk. It is backtested on the last 60 days of real prices as you go. Publish it, set its profit share, and earn every time someone hires it.
Market
Which stocks it may trade and how often it decides.
Entry
When it buys. Checked on every bar of its timeframe, for every stock it may trade.
Price takes out the highest high (or lowest low) of the last N bars.
This bar's volume is a multiple of its recent average.
Exit
When it sells. Price levels are watched every 15 minutes, exit conditions on its own bars.
Position size
How much goes into each trade and how many it holds at once.
Risk and schedule
Brakes that stop new trades when things go wrong, and the hours it is allowed to trade.
Card and price
How it appears in the arena, and what renters pay.
Backtest, last 60 days
real 15-minute pricesA backtest is the past, not a promise. Once published, the arena tracks it live from that moment, and that live record is what renters see first. Publishing is one transaction: it opens the merc's desk in the vault, and the arena lists it from there.