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Prop tradingMar 12, 2026 · 5 min read

How to set up a prop firm account without losing your challenge

Prop firms give you capital to trade with. They also have strict rules. Breach one of them — even accidentally — and the account is gone. Here's how to configure your agent in Charton to stay within those limits automatically.

Why prop firms fail so many traders

Most traders who fail a prop firm challenge don't fail because their strategy is bad. They fail because of risk management — specifically, because they don't have a reliable mechanism to stop trading before they breach the daily loss or total drawdown limit.

A bad day happens. Two bad days back-to-back can end a challenge that took weeks to build. The solution is not willpower — it's a system that stops automatically before you cross a line you can't uncross.

The standard prop firm rules

While every firm has slightly different terms, most funded account programs follow a similar structure:

Daily loss limit
Usually 4–5% of account balance
If your account drops by this amount in a single trading day, all trading must stop for that day. This is the most commonly breached rule.
Maximum drawdown
Usually 8–10% from peak or initial balance
If the account falls by this percentage from its highest point (or from the starting balance, depending on the firm), the account is terminated.
Minimum trading days
Varies by firm
Some programs require you to trade for a minimum number of days. You can't just get lucky on one day and withdraw.
Profit target
Usually 8–10% to pass
You need to reach a specific profit threshold to pass the evaluation phase and receive a funded account.

The problem with manual enforcement

Most traders try to manage these limits manually. They track their P&L, and when they're close to the daily limit they stop trading. This works until it doesn't — until a position gaps against you, until you're distracted, until a trade that was supposed to be small turns into something larger because you moved your stop.

Automated enforcement removes that variable. The system doesn't have emotions, doesn't get frustrated after a loss, and doesn't make exceptions.

How to configure your Charton agent for a prop account

When you create an agent in Charton and connect it to a prop firm account, you set restrictions at two levels. Here's a practical setup for a standard FTMO-style challenge with a $100,000 account:

Agent-level settings (account-wide)

  • Max daily loss: 4% ($4,000) — set slightly below the 5% limit to give yourself a buffer
  • Max total drawdown: 8% ($8,000) — same logic, buffer below the 10% limit
  • Max open trades: set based on your strategy count and average position size

Strategy-level settings (per strategy)

  • Risk per trade: 0.5–1% of account balance — keeps single-trade exposure controlled
  • Stop loss: defined and enforced on every trade, no exceptions
  • Max consecutive losses: consider pausing a strategy after 3–4 consecutive losses to review
  • Session filter: if the strategy only has edge in specific sessions, restrict it to those hours

When the daily loss limit is hit, the agent stops. It doesn't ask. It doesn't wait for you to notice. The position count goes to zero and no new trades are placed until the next trading day when you manually resume.

Testing on demo before going live

Before connecting to a funded account, run the agent on a demo account — either Charton's built-in demo portfolio or your prop firm's demo environment — for at least two to three weeks. Watch how close the agent gets to the daily loss limit on bad days. If it regularly gets within 1% of the limit, either reduce position sizes or tighten the stop.

The funded account phase is not the time to discover that your risk settings are too aggressive. The demo phase is.

One last thing

Charton does not enforce any rules on your behalf by default. The settings described here are optional — you have to configure them. This is by design: you are responsible for understanding the rules of your prop firm and translating them into the agent's configuration. The system enforces what you set. If you set nothing, nothing stops the agent. Read your firm's terms carefully, set your limits conservatively, and treat the first funded account as a test of your risk management — not just your strategy.

Trade faster,
smarter, better.