Thesis

A thesis is the logic of the trade stated before the outcome is known. It should describe the current structure, the evidence supporting the direction, and the condition that would invalidate the idea. A useful thesis is concrete enough that another trader could look at the same chart and understand exactly what you are claiming.

For example, 'I think price is going up' is not a thesis. It has no mechanism and no wrong point. A stronger thesis might state that a breakout has been accepted, the pullback is preserving the old boundary, friction remains limited, and loss of a specific structural point would invalidate the continuation case.

The purpose is not to sound sophisticated. It is to keep the trade falsifiable. Once the market contradicts the thesis, the reason for staying in the position is gone even if price might later move back in your favor.