Putting a New Rule on Probation

Two rules that read almost identically on paper can behave completely differently once they meet a live market, and there is no way to tell which is which by reading them. The note orb trading rules lalinetlasiren publishes on this describes the middle state that most plans lack, where a new line is written and recorded but not yet binding. Adding a rule straight to a live set of trading rules changes the strategy immediately and permanently on the strength of an idea, and an opening range breakout filter that sounds sensible has a fair chance of removing the trades that were paying for everything else.

Probation Means Evaluated, Not Applied

The rule is written out in full and given a start date. Every session, it is scored against what actually happened: would it have permitted this trade, refused that one, changed this size. Nothing about the day's decisions changes. The only cost is a column in the log and a minute after the closing bell.

Set the Length Before You Start

Twenty sessions is a reasonable floor for an intraday rule that touches most trades, and considerably more for one that fires rarely. Deciding the length in advance is what stops the evaluation ending on the first day the rule looks good, which is the ordinary way probation periods get abandoned. Write the end date next to the start date.

Score the Refusals as Carefully as the Approvals

A filter is judged mainly by what it removes. Record every trade it would have blocked and what that trade actually did, because a rule that blocks three losers and two winners has a very different value from one that blocks five losers. Aggregate profit and loss on the refused set is the number that decides it, not the count.

Backtest and Probation Answer Different Questions

Running the rule over historical data is cheaper and should be done first, but it only shows what the rule would have done to trades you know you took. Probation shows what it does to the trades you take now, on the current instruments and the current timeframe, with the current state of the market. A rule can pass the first and fail the second.

Promotion Is a Decision With a Date

At the end of the period the rule is promoted, extended once, or discarded, and the outcome goes in the plan with its date and its evidence. Extending twice is discarding with extra steps. Keeping the record of a rule that failed probation is worth as much as keeping the ones that passed, because it stops the same idea arriving again in a slightly different form after the next bad week.