diff --git a/sdks/typescript/pmxt/client.ts b/sdks/typescript/pmxt/client.ts
index 04ddc27f..01e5e043 100644
--- a/sdks/typescript/pmxt/client.ts
+++ b/sdks/typescript/pmxt/client.ts
@@ -3086,8 +3086,9 @@ export abstract class Exchange {
             }
 
             // ResolutionDate filter
-            if (criteria.resolutionDate && market.resolutionDate) {
+            if (criteria.resolutionDate) {
                 const resDate = market.resolutionDate;
+                if (!resDate) return false;
                 if (criteria.resolutionDate.before && resDate >= criteria.resolutionDate.before) {
                     return false;
                 }