A three-layer rulebook before the first order
This illustrative long-only experiment starts after a close crosses above the prior 20-bar high. It adds only after a later close is at least 2% above the most recent entry fill. Quantities decline from 100 to 50 to 25 shares. These settings define a reproducible experiment; they are not optimized recommendations or reported trading results.
- This page studies adding after favorable movement. Doubling after a loss is a different sizing policy; partial take profits reduce exposure rather than add it.
- Use actual fill prices for the next trigger. A decision price and the eventual transaction price can differ.
| Decision | Explicit rule | Reason to reject an add |
|---|---|---|
| Initial entry | One breakout event while flat; 100 shares. | Invalid stop distance, insufficient funds, or planned risk above the budget. |
| Second entry | After the first fill, a close at least 2% above that fill; 50 shares. | First order has not filled, or the combined position fails a limit. |
| Third entry | After the second fill, a close at least 2% above that fill; 25 shares. | A prior layer is still pending, or the combined position fails a limit. |
| Further entries | None until the whole position has closed. | A persistent signal is not a fourth permission to buy. |
| Exit | Use the same fixed stop for all layers in the baseline. | Do not move the stop farther away to accommodate an addition. |