From 8d8fd711493805ef0c1f419cb3f38c04a1149d67 Mon Sep 17 00:00:00 2001
From: aszerW <aszer27937@gmail.com>
Date: Sat, 6 Jun 2026 22:48:40 +0800
Subject: [PATCH] feat(viewer): sort holdings cards by position weight
 descending

Display largest position first in the holdings panel for better readability
---
 rotation/backtest_viewer.html | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/rotation/backtest_viewer.html b/rotation/backtest_viewer.html
index 38b106d..a7a77e3 100644
--- a/rotation/backtest_viewer.html
+++ b/rotation/backtest_viewer.html
@@ -403,7 +403,13 @@ function renderHoldings(day, meta) {
   }
 
   let html = '';
-  for (const code of day.holdings) {
+  // Sort holdings by weight descending (largest position first)
+  const sortedHoldings = [...day.holdings].sort((a, b) => {
+    const wa = day.assets[a] && day.assets[a].weight !== null ? day.assets[a].weight : 0;
+    const wb = day.assets[b] && day.assets[b].weight !== null ? day.assets[b].weight : 0;
+    return wb - wa;
+  });
+  for (const code of sortedHoldings) {
     const a = day.assets[code];
     if (!a) continue;
     const info = meta.codes[code] || {};