From c1c52ff95c054b8b697e77f74c6069b6161fabb8 Mon Sep 17 00:00:00 2001
From: mooncitydev <mooncitydev@users.noreply.github.com>
Date: Fri, 24 Apr 2026 05:10:17 +0900
Subject: [PATCH 1/2] fix opinion child markets volume24h by distributing
 parent volume evenly

Made-with: Cursor
---
 core/src/exchanges/opinion/normalizer.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/core/src/exchanges/opinion/normalizer.ts b/core/src/exchanges/opinion/normalizer.ts
index b272146b..122219ff 100644
--- a/core/src/exchanges/opinion/normalizer.ts
+++ b/core/src/exchanges/opinion/normalizer.ts
@@ -57,8 +57,11 @@ export class OpinionNormalizer implements IExchangeNormalizer<OpinionRawMarket,
         const children = raw.childMarkets || [];
         const results: UnifiedMarket[] = [];
 
+        const parentVolume24h = parseNumStr(raw.volume24h);
+        const perChildVolume24h = children.length > 0 ? parentVolume24h / children.length : 0;
+
         for (const child of children) {
-            const market = this.normalizeChildMarket(child, raw);
+            const market = this.normalizeChildMarket(child, raw, perChildVolume24h);
             if (market) results.push(market);
         }
 
@@ -267,6 +270,7 @@ export class OpinionNormalizer implements IExchangeNormalizer<OpinionRawMarket,
     private normalizeChildMarket(
         child: OpinionRawChildMarket,
         parent: OpinionRawMarket,
+        volume24h: number = 0,
     ): UnifiedMarket | null {
         if (!child) return null;
 
@@ -300,7 +304,7 @@ export class OpinionNormalizer implements IExchangeNormalizer<OpinionRawMarket,
             description: child.rules || '',
             outcomes: [yesOutcome, noOutcome],
             resolutionDate: new Date(toMillis(child.cutoffAt)),
-            volume24h: 0, // child markets do not have volume24h
+            volume24h,
             volume: parseNumStr(child.volume),
             liquidity: 0,
             url: `https://opinion.trade/market/${child.marketId}`,

From 131badca66ab4c840028ad5fc9b296a38ddaf5b1 Mon Sep 17 00:00:00 2001
From: "Samuel EF. Tinnerholm" <samuel.tinnerholm@gmail.com>
Date: Fri, 24 Apr 2026 19:28:40 +0300
Subject: [PATCH 2/2] fix: distribute volume24h proportionally by child volume
 instead of evenly

---
 core/src/exchanges/opinion/normalizer.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/core/src/exchanges/opinion/normalizer.ts b/core/src/exchanges/opinion/normalizer.ts
index 122219ff..ea2374d7 100644
--- a/core/src/exchanges/opinion/normalizer.ts
+++ b/core/src/exchanges/opinion/normalizer.ts
@@ -58,10 +58,14 @@ export class OpinionNormalizer implements IExchangeNormalizer<OpinionRawMarket,
         const results: UnifiedMarket[] = [];
 
         const parentVolume24h = parseNumStr(raw.volume24h);
-        const perChildVolume24h = children.length > 0 ? parentVolume24h / children.length : 0;
+        const totalChildVolume = children.reduce((sum, c) => sum + parseNumStr(c.volume), 0);
 
         for (const child of children) {
-            const market = this.normalizeChildMarket(child, raw, perChildVolume24h);
+            const childVolume = parseNumStr(child.volume);
+            const childVolume24h = totalChildVolume > 0
+                ? (childVolume / totalChildVolume) * parentVolume24h
+                : 0;
+            const market = this.normalizeChildMarket(child, raw, childVolume24h);
             if (market) results.push(market);
         }