From 37428c0bf9e1fcf14f34c5f20678ed71aef97d45 Mon Sep 17 00:00:00 2001
From: dekun <dekun@local>
Date: Wed, 14 Oct 2026 21:59:17 +0800
Subject: [PATCH] Show OKX option Delta on hedge plan strike picker.

Surface ticker delta (gamma in tooltip) in the chain table and selected premium line for easier ITM selection.

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 lib/common/static/hedge_plan.js               | 28 ++++++++++++++++---
 lib/exchange/okx_options_lib.py               |  7 +++++
 .../templates/hedge_plan_panel.html           |  5 ++--
 3 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/lib/common/static/hedge_plan.js b/lib/common/static/hedge_plan.js
index 99d9fec..27a5847 100644
--- a/lib/common/static/hedge_plan.js
+++ b/lib/common/static/hedge_plan.js
@@ -894,6 +894,14 @@
   }
 
   /** CoinOX 币本位:卖一为币报价 → 杠杆≈1÷卖一(与期权页一致). */
+  function fmtDelta(v) {
+    const n = Number(v);
+    if (v == null || Number.isNaN(n)) return "—";
+    // Call 多为正,Put 多为负;保留两位便于对比实虚值
+    const s = fmt(n, 2);
+    return n > 0 ? "+" + s : s;
+  }
+
   function calcIndexAskLeverage(ask) {
     const a = Number(ask);
     if (!(a > 0)) return "—";
@@ -2262,7 +2270,7 @@
     const want = optTypeForDirection(getDirection());
     const exp = currentExp("hp-exp-select");
     const prevInst = state.selected && state.selected.inst_id;
-    const cols = isOptionPrimary() ? 7 : 6;
+    const cols = isOptionPrimary() ? 8 : 7;
     tbody.innerHTML = "";
     if (!exp) {
       tbody.innerHTML = '<tr><td colspan="' + cols + '" class="muted">请选择到期日</td></tr>';
@@ -2302,13 +2310,21 @@
       tr.className = "opt-strike-row" + (c.moneyness ? " opt-row-" + c.moneyness : "");
       if (prevInst && c.inst_id === prevInst) tr.classList.add("opt-row-selected");
       tr.setAttribute("data-inst", c.inst_id);
+      const deltaCell =
+        '<td class="opt-chain-delta" title="交易所 Delta' +
+        (c.gamma != null ? " · γ=" + fmt(c.gamma, 4) : "") +
+        '">' +
+        fmtDelta(c.delta) +
+        "</td>";
       if (isOptionPrimary()) {
         tr.innerHTML =
           "<td>" +
           c.strike +
           "</td><td>" +
           moneynessBadge(c) +
-          "</td><td><code class=\"opt-inst-code\">" +
+          "</td>" +
+          deltaCell +
+          '<td><code class="opt-inst-code">' +
           (c.inst_id || "") +
           '</code></td><td class="opt-px-sz">' +
           fmtPxSz(c.ask, c.ask_sz, c.ask_estimated, c.tick_sz) +
@@ -2327,7 +2343,9 @@
           c.strike +
           "</td><td>" +
           moneynessBadge(c) +
-          '</td><td class="opt-chain-lev" title="指数÷卖一">' +
+          "</td>" +
+          deltaCell +
+          '<td class="opt-chain-lev" title="指数÷卖一">' +
           calcIndexAskLeverage(c.ask) +
           '</td><td class="opt-px-sz">' +
           fmtPxSz(c.ask, c.ask_sz, c.ask_estimated, c.tick_sz) +
@@ -2366,6 +2384,7 @@
     // U 以期权标的指数为准(买 BTC/ETH 开期权);跨币不可用永续 ETH 价
     const buyPx = Number(optionIndexPx() || 0);
     const premU = buyPx > 0 ? prem * buyPx : null;
+    const dlt = state.selected.delta;
     line.textContent =
       "权利金 ≈ " +
       fmt(prem, 4) +
@@ -2374,7 +2393,8 @@
       (premU != null ? " / " + fmt(premU, 2) + " U" : "") +
       " · 卖一 " +
       fmt(ask, 4) +
-      (buyPx > 0 ? " · 买" + optionCoin() + "参考 " + fmt(buyPx, 2) : "");
+      (buyPx > 0 ? " · 买" + optionCoin() + "参考 " + fmt(buyPx, 2) : "") +
+      (dlt != null && !Number.isNaN(Number(dlt)) ? " · Δ " + fmtDelta(dlt) : "");
   }
 
   function buildStraddleRows(contracts) {
diff --git a/lib/exchange/okx_options_lib.py b/lib/exchange/okx_options_lib.py
index 6dd1186..8c38878 100644
--- a/lib/exchange/okx_options_lib.py
+++ b/lib/exchange/okx_options_lib.py
@@ -285,6 +285,9 @@ def _resolve_chain_quote(
     if ask_estimated:
         ask_sz = None
 
+    # OKX 期权 ticker 自带希腊字母(选约用);缺省时前端显示 —
+    delta = _safe_float(ticker.get("delta") or ticker.get("deltaBS"))
+    gamma = _safe_float(ticker.get("gamma") or ticker.get("gammaBS"))
     return {
         "ask": ask,
         "bid": bid,
@@ -292,6 +295,8 @@ def _resolve_chain_quote(
         "bid_sz": bid_sz,
         "mark_px": mark,
         "ask_estimated": ask_estimated,
+        "delta": delta,
+        "gamma": gamma,
     }
 
 
@@ -945,6 +950,8 @@ def build_option_chain(
                 "bid_sz": bid_sz,
                 "mark_px": mark,
                 "ask_estimated": q["ask_estimated"],
+                "delta": q.get("delta"),
+                "gamma": q.get("gamma"),
                 "expiry_be_px": expiry_be,
                 "dist_expiry_be": strike_distance_to_be(strike, expiry_be, opt_type=opt_type),
                 "moneyness": mny,
diff --git a/lib/hedge_plan/templates/hedge_plan_panel.html b/lib/hedge_plan/templates/hedge_plan_panel.html
index 47d771c..d83d035 100644
--- a/lib/hedge_plan/templates/hedge_plan_panel.html
+++ b/lib/hedge_plan/templates/hedge_plan_panel.html
@@ -102,6 +102,7 @@
               <tr>
                 <th>行权价</th>
                 <th>类型</th>
+                <th title="交易所 Delta:标的变动时期权价敏感度;实值 |Δ| 通常更大(Call为正/Put为负)">Delta</th>
                 <th>合约</th>
                 <th>卖一/张</th>
                 <th title="币本位:1÷卖一">杠杆</th>
@@ -110,7 +111,7 @@
               </tr>
             </thead>
             <tbody id="hp-strike-tbody">
-              <tr><td colspan="7" class="muted">请刷新期权链</td></tr>
+              <tr><td colspan="8" class="muted">请刷新期权链</td></tr>
             </tbody>
           </table>
         </div>
@@ -508,4 +509,4 @@
     </div>
   </div>
 </div>
-<script src="/static/hedge_plan.js?v=68"></script>
+<script src="/static/hedge_plan.js?v=69"></script>