diff --git a/ft-app/app/routers/contracts.py b/ft-app/app/routers/contracts.py
index 05d6e02..e927ac0 100644
--- a/ft-app/app/routers/contracts.py
+++ b/ft-app/app/routers/contracts.py
@@ -59,6 +59,20 @@ def contract_index(request: Request, db: Session = Depends(get_db)):
         if bar.contract not in contract_bars:
             contract_bars[bar.contract] = bar
 
+    # Next-day amplitude: mean of latest 5 diffs per contract
+    contract_next_amp = {}
+    for code in all_codes:
+        diffs = [
+            r[0] for r in
+            db.query(DailyBar.high - DailyBar.low)
+            .filter(DailyBar.contract == code)
+            .order_by(DailyBar.date.desc())
+            .limit(5)
+            .all()
+        ]
+        if len(diffs) >= 5:
+            contract_next_amp[code] = round(sum(diffs) / 5)
+
     template = request.app.state.templates.get_template("index.html")
     return HTMLResponse(
         template.render(
@@ -66,6 +80,7 @@ def contract_index(request: Request, db: Session = Depends(get_db)):
             active_nav="contracts",
             product_groups=product_groups,
             contract_bars=contract_bars,
+            contract_next_amp=contract_next_amp,
         )
     )
 
diff --git a/ft-app/app/templates/index.html b/ft-app/app/templates/index.html
index f491b92..42ec499 100644
--- a/ft-app/app/templates/index.html
+++ b/ft-app/app/templates/index.html
@@ -17,7 +17,7 @@
   </div>
   <div class="product-body">
     <table>
-      <tr><th>合约</th><th>日期</th><th>开盘</th><th>收盘</th><th>最高</th><th>最低</th><th>振幅</th><th>操作</th></tr>
+      <tr><th>合约</th><th>日期</th><th>开盘</th><th>收盘</th><th>最高</th><th>最低</th><th>振幅</th><th>次日振幅</th><th>操作</th></tr>
       {% for c in pg.contracts %}
       <tr>
         <td><strong>{{ c }}</strong></td>
@@ -34,8 +34,15 @@
           <span class="na">—</span>
           {% endif %}
         </td>
+        <td>
+          {% if c in contract_next_amp %}
+          <span class="badge badge-warn">{{ contract_next_amp[c] }}</span>
+          {% else %}
+          <span class="na">—</span>
+          {% endif %}
+        </td>
         {% else %}
-        <td colspan="6" class="na">暂无数据</td>
+        <td colspan="7" class="na">暂无数据</td>
         {% endif %}
         <td><a href="/contracts/{{ c }}" style="color:var(--accent);text-decoration:none;">详情 →</a></td>
       </tr>