diff --git a/backend/src/index.ts b/backend/src/index.ts
index 3939f1d..c143686 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -281,6 +281,12 @@ async function main() {
                 if (!ctx) continue;
 
                 if (shouldArmSimpleBuy(entry)) {
+                    const reboundExistingPosition = await bindSimpleBoughtPosition(entry, ctx);
+                    if (reboundExistingPosition) {
+                        logger.info(`[SimpleWorker] Rebound armed buy setup to existing open holding for ${symbol}`);
+                        continue;
+                    }
+
                     const currentPrice = resolveSimpleMarketPrice(entry) ?? toPositiveNumber(entry.reference_price);
                     const triggerPrice = computeSimpleBuyTriggerPrice(entry);
                     if (!(currentPrice && currentPrice > 0) || !triggerPrice) continue;