# G6 Drawdown / Survivable-Compounding R Validation Close — v0.27

Date: 2026-08-07
Status: **PASS / CLOSED**

## Independent runtime evidence

The user executed:

```r
source("03_Data_and_Code/02_Code/09_VALIDATE_DRAWDOWN_AND_COMPOUNDING_R_v0_26.R")
```

The observed console output reported:

- `PASS: v0.26 independent base-R drawdown/compounding validation export written.`
- standard MDD includes initial wealth `W0=1` as a valid running peak;
- R/Python maximum absolute numeric difference: **2.576e-14**;
- no strategy rule, return path, weight, cost, or sample changed.

A screenshot of the runtime evidence is archived at:

`03_Data_and_Code/03_Validation/User_Runtime_Evidence/v0.26_drawdown_R_PASS_console.png`

## Gate interpretation

The corrected drawdown definition introduced in v0.26 is now independently validated in base R to numerical tolerance. G6 drawdown/compounding calculation is therefore closed.

This validation changes only the measurement definition for drawdown. It does not reopen strategy selection, portfolio weights, return construction, costs, sample dates, or performance optimization.
