diff --git a/src/scoring.ts b/src/scoring.ts
index 8173bb6..cebf99b 100644
--- a/src/scoring.ts
+++ b/src/scoring.ts
@@ -89,8 +89,15 @@ export function scoreItem(item: NormalizedItem): ScoredItem {
   if (item.sourceId === "nzx-announcements") {
     score += 1;
     reasons.push("New NZX market announcement");
-    const eventText = `${item.title} ${item.metrics?.announcementType ?? ""}`.toLowerCase();
-    if (/(fll?yr|hal?fyr|transact|corpact|takeover|guidance|results|earnings|dividend|trading halt|capital raise|acquisition|merger|scheme)/i.test(eventText)) {
+    const title = item.title.toLowerCase();
+    const announcementType = String(item.metrics?.announcementType ?? "").toUpperCase();
+    const routineNotice =
+      /(notice of acquisition of securities|transaction in own shares|net asset value|\bnta\b|sph notice|capital change notice|ongoing disclosure notice)/i.test(title);
+    const materialType = new Set(["FLLYR","HALFYR","TRANSACT","CORPACT"]).has(announcementType);
+    const materialTitle =
+      /(takeover|guidance|results|earnings|dividend|trading halt|capital rais|merger|scheme of arrangement|acquisition of (?:a |the )?(?:business|company|asset)|sale of (?:a |the )?(?:business|company|asset))/i.test(title);
+
+    if (!routineNotice && (materialType || materialTitle)) {
       score += 2;
       reasons.push("Potentially material market event");
     }