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Log in with DiscordTrading Rules
Trading rules set boundaries for when you trade, how much you risk and when you stop. They help keep one impulsive decision from turning into several. The rules should be specific enough that you know whether you followed them.
A Practical Set Of Rules
Here is a day trader's example rule sheet. The numbers and trading window are chosen for this example; they are not requirements for every trader.
| Rule | What the trader does |
|---|---|
| Stop for the day at a $150 net loss | Cancel pending entries, close day-trading positions and take no more trades that day |
| Take no more than three trades per day | Do not open a fourth position that day; continue managing existing positions |
| Enter only between 9:30 and 11:00 a.m. Eastern Time | Cancel unfilled entry orders at 11:00 a.m.; manage positions already open |
| Plan no more than $50 of price risk per trade | Calculate quantity from entry and stop before submitting the order |
| Do not add to a losing position | Leave the quantity unchanged or reduce it; do not increase it to lower the average entry |
| Do not move the stop farther away to avoid a loss | Follow the planned exit rather than giving the trade an unplanned larger allowance |
Net profit or loss is the trading result after costs. In this rule sheet, daily net loss includes results from closed portions of positions and unrealized gains or losses on open day trades, after costs already incurred. Once the limit is reached, a later recovery does not restart trading that day.
The daily loss rule takes priority over the trade-count allowance. Having one trade left does not permit another entry after the daily limit is reached. A trading window also does not require taking a trade: there may be no suitable opportunity during it.
Define What Counts As A Trade
For the three-trade rule, this trader counts one position from its first entry until all shares are closed. Partial fills and partial exits belong to that same trade. Re-entering after returning to zero counts as a new trade, including a re-entry in the same stock.
Without that definition, a trader could call repeated re-entries “one idea” and keep trading beyond the intended limit. If additions are allowed under a different rule sheet, they still need their own size and total-risk check.
Walk Through A Trading Morning
The first trade loses $50.00. The second gains $25.00. The third loses $50.00. All three figures are after costs, so the day is down $75.00.
The $150.00 daily loss limit has not been reached, but the three-trade limit has. The trader takes no fourth trade. The rules work together; the loss limit is not a target to spend.
If instead the second trade brings the day's loss to $150.00, the trader stops then. The third trade is unavailable even if a new opportunity looks attractive.
Turn A Repeated Mistake Into A Rule
Start with something you can identify in your trade journal. Suppose a trader repeatedly enters after their morning setup has ended, often because they are trying to recover an earlier loss. “Be more disciplined” does not tell them what to do. A rule such as “No new entries after 11:00 a.m. Eastern Time” creates a condition they can check before ordering.
That time belongs to this trader's example process, not every trading approach. They review late entries separately from permitted morning entries, using comparable trades and recording whether the rule was followed. A profitable late trade still broke the rule. If they later want to trade a different period, they study it and revise the written plan outside the session rather than grant themselves an exception while losing.
At 11:00 a.m., cancel outstanding entry orders as well as avoiding new ones. If an entry partly filled before then, cancel the unfilled remainder and manage the shares already held. Check the order status to confirm what actually filled.
Count each trade when its position first opens. If three positions have opened today, the allowance is used even if one or more are still open. Partial fills of an existing entry do not create another allowance. Closing a position and re-entering creates a new trade, not a continuation that avoids the count.
Choose Rules For Actual Problems
A trade-count limit can address overtrading. A trading window can keep entries within the period the trader has studied and can monitor. A no-addition rule can address repeated averaging down. Each rule needs a reason, rather than being copied because another trader uses it.
Record the rule before trading and apply it to winning days as well as losing days. Finishing with a profit after breaking the rule does not show that the extra exposure was justified.
Change rules during a planned review, using enough comparable trades to understand the problem. Raising the loss limit in the middle of a losing session defeats the boundary it was meant to create.