I gave Claude $300 and asked it to build me a 10-bot trading competition.
34 minutes later, 10 trading agents were live. Each one got $30 of my money, a different strategy, and one rule: beat the other 9.
3 days later, 7 of them were up, 3 were dead, and the account had grown to $2,225
I never placed a single trade.
Here is what happened inside the account while I slept, ate, and watched TV.
The Sniper finished first by a mile. Its rule: 2 to 3 trades per day, maximum.
Claude calculates expected value for every market on the board, and the Sniper only enters when the edge is above 25% and confidence above 8/10.
It spent most of its 7 days doing absolutely nothing, then struck 14 times. Its $30 slice closed at $440.
The Reader finished second.
It runs a RAG pipeline on SEC filings, CBO reports, and Fed minutes. 400 pages a minute.
It hunts for one thing only: contradictions between what a document says and what current market prices imply. Its slice closed at $385.
The Copycat finished third.
It has no strategy of its own. It watches a shared JSON file where the other 9 bots log their signals.
The moment 3 or more agree on a trade, it copies them at double size.
An ensemble model in one line of code. Its slice closed at $345.
The Arbitrage Bot finished fourth.
It hunts for broken logic between linked markets.
When one market prices an event at 40% and a related market prices the same outcome at 15%, it calculates the conditional probability, finds the gap, and quietly enters the cheaper side.
Its slice closed at $310.
The Whale Hunter finished fifth.
It parses on-chain data through the Dune API and tracks wallets with a 70% historical win rate.
When one of those wallets drops a big position at 3 AM, it follows.
No questions, no hesitation. Its slice closed at $265.
The Calendar Bot finished sixth.
It only trades events with a known date. Elections. Fed meetings. Court rulings.
It pulls historical data on similar past events, calculates the base rate, and sizes accordingly.
No deadline, no interest. Its slice closed at $230.
The Newsreader finished seventh.
It parses RSS and NewsAPI in real time.
Every headline gets fed through Claude with one question: rate the market impact from 1 to 10.
Anything above 7 triggers a position. Never sleeps. Its slice closed at $205.
Then come the dead.
The Scalper lost money.
It microtraded through the CLOB API, 30 to 40 trades a day, chasing 2 to 3 cent moves on the bid-ask spread.
After 7 days of activity, the fees ate the edge. Its slice closed at $25.
The Contrarian lost more.
Its rule: when 80% of the money piles onto one side of a market, take the opposite.
Kelly criterion sizes the position.
It hates consensus.
The crowd was right too often this week. Its slice closed at $15.
The Sentiment Analyst got annihilated.
It scrapes Twitter, Reddit, and Telegram, calculates a positive/negative ratio, and buys when everyone panics.
Everyone panicked.
Then they panicked more.
Then the panic kept being correct.
Its slice closed at $5.
Final result: $300 in. $2,225 out. 7 days. The fund 7x'd.
Three things I noticed.
The least active bot won by a landslide.
The Sniper made 14 trades total over the entire week and crushed everyone.
The most active bot, the Scalper, ran more than 200 trades and finished in the red.
Edge beats activity, every time.
The simplest bot finished third.
The Copycat has no thesis, no model, no strategy.
It just waits for 3 of the others to agree and copies them at double size.
An ensemble of identical Claude agents beat 6 of those agents individually.
The collective is smarter than the individual, even when the individual is the collective.
The strategies that "feel smart" lost.
Contrarian and Sentiment both rely on the same core idea: outsmart the crowd.
They lost.
The strategies that "feel boring" (Calendar, Reader, Sniper, Arbitrage) all printed money.
Markets reward patience.
They punish performance.
I built none of this myself.
I wrote one prompt. Claude did the rest.
34 minutes from blank screen to 10 live trading agents, each one with its own brain, its own bankroll, and a window into what the other 9 were doing.
The whole experiment cost less than a Friday night dinner.
Hedge funds in New York pay 50 humans six figures a year to run experiments like this and call it discretionary trading.
I called it Tuesday.
The next experiment is the same 10 bots with $3,000.
The one after that is 100 bots with $30,000.
The bottleneck used to be capital.
Then it was talent.
Now it is just imagination, and how big a colosseum you are willing to build.