Refresh live monitor through official closes

.github/workflows/refresh-dashboard.yml

@@ -0,0 +1,69 @@
+name: Refresh live-forward dashboard
+
+on:
+  schedule:
+    # 6:30 PM Toronto during standard time; 5:30 PM during daylight time.
+    - cron: "30 22 * * 1-5"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pages: write
+  id-token: write
+
+concurrency:
+  group: github-pages
+  cancel-in-progress: false
+
+jobs:
+  refresh:
+    name: Refresh official closes and deploy
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Check out the default branch
+        uses: actions/checkout@v7
+        with:
+          ref: ${{ github.event.repository.default_branch }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v7
+        with:
+          python-version: "3.12"
+          cache: pip
+
+      - name: Install public-refresh dependencies
+        run: python -m pip install "numpy>=1.26" "pandas>=2.1" "yfinance>=0.2.31"
+
+      - name: Refresh sanitized cohort evidence
+        run: python -m src.experiments.public_cohort_refresh --site-dir site
+
+      - name: Validate sanitized public bundle
+        run: python -m src.experiments.public_dashboard_validation --site-dir site
+
+      - name: Commit refreshed public data
+        shell: bash
+        run: |
+          if git diff --quiet -- site/data/dashboard.json site/data/manifest.json; then
+            echo "The public monitor is already current."
+            exit 0
+          fi
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add site/data/dashboard.json site/data/manifest.json
+          git commit -m "Refresh live-forward dashboard"
+          git push origin HEAD
+
+      - name: Configure GitHub Pages
+        uses: actions/configure-pages@v6
+
+      - name: Upload dashboard artifact
+        uses: actions/upload-pages-artifact@v5
+        with:
+          path: site
+
+      - name: Deploy dashboard
+        id: deployment
+        uses: actions/deploy-pages@v5

README.md

@@ -312,6 +312,12 @@ dashboard, and regenerates the sanitized GitHub Pages bundle:
 python -m src.cli run-live-forward-daily --as-of YYYY-MM-DD
 ```
 
+The public monitor also refreshes automatically at 22:30 UTC on weekdays. The
+scheduled job rebuilds the same frozen-cohort paths from sanitized selections,
+fails closed on missing prices, validates the bundle, and deploys the refreshed
+site. The default Portfolio vs Benchmark chart now follows this monitoring path,
+so its latest date advances even though stock selection remains frozen.
+
 The **Holding-period laboratory** can keep any dated list unchanged or compare
 custom 1-60-session replacement horizons, including 5/10/20-session presets.
 Ridge and XGBoost can be toggled independently while SPY remains permanently

docs/GITHUB_PAGES_DEPLOYMENT.md

@@ -71,6 +71,20 @@ deploying. After merge, the resulting push to `main` runs the same validation,
 uploads the Pages artifact, and deploys it to the `github-pages` environment.
 The deploy job is explicitly restricted to `refs/heads/main`.
 
+The scheduled public refresh runs at 22:30 UTC on weekdays, after the regular
+US market close. It reconstructs the frozen-cohort monitor from the sanitized
+portfolio selections already committed in `site/data/dashboard.json`, downloads
+only their adjusted closes and SPY, validates the bundle, commits changed public
+JSON, and deploys that exact version. It does not access the ignored `reports/`
+directory, model files, news data, API credentials, or local caches. On market
+holidays, the refresh detects that the latest official close is already
+published and leaves the site unchanged.
+
+The scheduled workflow is
+[`refresh-dashboard.yml`](../.github/workflows/refresh-dashboard.yml). It can
+also be launched manually from GitHub Actions when a scheduled run needs to be
+repeated.
+
 ## One-time repository setting
 
 In the GitHub repository, open **Settings > Pages** and set **Source** to **GitHub Actions**. After

docs/LIVE_FORWARD_MONITOR.md

@@ -44,6 +44,13 @@ interval. Five-, 10-, and 20-session presets are provided, and the horizon compa
 every 1–20-session candidate side by side. SPY is permanent and begins from the same zero-return
 decision-close baseline as each portfolio.
 
+The main **Portfolio vs Benchmark** chart uses the archived one-session policy
+while frozen-cohort monitoring is active. It therefore extends through every
+new official close even though no new stock list is generated after July 27.
+The date controls and KPI cards are rebased to the selected monitoring window.
+The stock-level table and experiment history remain immutable records of the
+original one-session snapshots.
+
 The displayed **replacement turnover** excludes the unavoidable initial purchase. An unchanged
 cohort therefore correctly shows 0% replacement turnover. Scheduled policies use the same
 $1 million capital, 8 bps one-way cost, $10 fixed trade fee, and 0.25% minimum trade-weight rule.