Why it matters
Discretion can add edge, but it is also where emotion hides. Unmeasured discretion becomes hidden leverage.
Trading use: the point is not vocabulary. The point is prediction: what changes when this shows up?
Common trap
Calling emotional overrides ‘discretion’ without tracking results.
Example
You ‘just know’ this one is different, so you ignore your entry filter.
Operational cue: if you can’t point to it on the chart, in the DOM, or in your broker logs, treat it as a story and trade smaller.
Notes
Discretion must be measurable: define what it is, when it’s allowed, and whether it improves outcomes.
Quick rule
- If you see this repeatedly, you are in a different regime than your model assumes.
- Regime change usually means position size change.
- When in doubt: trade smaller, or don’t trade.