Examining a Winning Streak Without Getting Fooled
Good runs go unexamined. The results are satisfying, nothing demands attention, and the natural conclusion is that things are working. That conclusion may be correct. It is also the period during which most durable bad habits are acquired, because a departure from the plan that happens to make money does not register as a departure at all. It registers as judgement, and judgement is the thing you will reach for again later when conditions have changed.
Separate the Conditions From the Decisions
The first question of any good stretch is whether the market was simply cooperative. Breakout methods have a habit of producing clusters of results, because the conditions that suit them arrive in clusters. A period of clean directional sessions with moderate ranges will make almost any competent breakout rule look excellent, and the trader running it will feel sharp.
Writing down what the sessions had in common answers this quickly. If the good run coincided with a stretch of exactly the conditions the method is built for, the correct reading is that the environment was favourable, not that anything improved. That reading is far less pleasant and considerably more useful when the environment turns, because it sets an expectation that the run will end for reasons unrelated to skill.
Audit the Trades That Broke the Rules
The second pass is the uncomfortable one. Go through the winning stretch looking specifically for trades that were not the trade the plan specified, and note them regardless of outcome. An entry taken before the range was complete. A size larger than the rule allowed because the setup looked especially good. A target extended in the moment because the move was strong.
Each of those, if it made money, has been silently added to the method. Nobody writes them down as changes, but they will be repeated, and they will be repeated with more confidence than the first time. The audit exists to catch them while the memory is fresh enough to identify them and before enough repetitions have made them feel like part of the plan.
The Size Question
Position size deserves its own check, because it drifts more reliably than anything else during a good run and it drifts in a way that feels justified. Confidence rises, the account is larger, the last several trades worked, and a slightly bigger position seems appropriate rather than reckless.
The problem is timing. Size tends to peak at the end of a good run, which is by definition immediately before conditions change, so the largest positions coincide with the first losses of the next stretch. A run of gains taken at ordinary size followed by losses taken at elevated size can undo the whole period, and this is one of the most common ways a profitable month turns into a flat one. Recording the size on every trade makes the drift visible while it is still small.
Ask What Would Have Happened Anyway
A useful exercise is to work out what the stretch would have produced if the plan had been followed exactly, with no improvisation and constant size. Sometimes the answer is that the plan would have produced nearly the same result, which means the deviations added risk without adding return and can be dropped without cost.
Occasionally the answer is that the deviations genuinely contributed, and then there is a real question worth taking seriously: is this an improvement that belongs in the written rules, tested properly, or a coincidence that will not repeat. The way to tell is to specify it precisely enough that it could be applied mechanically and then watch it over a longer stretch. A change that cannot be written down clearly is not an improvement, it is a mood that got lucky.
Ending the Review Without a Verdict
A good run, like a bad one, is too short to settle anything about the method. What it can settle is whether the plan was followed, whether size stayed where it belonged, and whether the conditions were the favourable ones. Those three answers are available and worth having.
The finding to be most suspicious of is the feeling of having got better. Improvement in trading is slow and it does not announce itself during the profitable weeks. What announces itself during profitable weeks is confidence, and confidence and skill are difficult to distinguish from the inside, which is the entire reason for conducting the review while the results are still good.