diff --git a/app/crawlers/openinsider_top.py b/app/crawlers/openinsider_top.py
index 9a1d1ee..51a5608 100644
--- a/app/crawlers/openinsider_top.py
+++ b/app/crawlers/openinsider_top.py
@@ -64,26 +64,39 @@ class OpenInsiderTopCrawler(BaseCrawler):
 
     @staticmethod
     def _parse_money(val: str) -> Optional[int]:
+        """Parse money text into absolute integer dollars.
+
+        Handles formats like:
+        - "$1,234,567"
+        - "($1,234,567)" (treat as negative but return magnitude)
+        - "-$1,234,567" (treat as negative but return magnitude)
+        - "1,234,567"
+        Returns None if no digits found.
+        """
         if not val:
             return None
         s = val.strip()
-        # Remove $ and commas and any parentheses
-        for ch in ['$', ',', '(', ')', '+']:
+        # Detect negative indicators before stripping
+        is_negative = s.startswith('-') or '(' in s
+        # Normalize: remove currency symbols, commas, parentheses, plus/minus, spaces
+        for ch in ['$', ',', '(', ')', '+', '-', ' ']:
             s = s.replace(ch, '')
-        # Some cells may include text like "$1,234,567 (incl. options)"
-        # Keep only leading numeric part
+        # Keep only leading digits
         num = ''
         for c in s:
             if c.isdigit():
                 num += c
-            elif c in ' .':
+            elif c == '.':
+                # ignore decimal points; values appear to be whole dollars
                 continue
             else:
                 break
         if not num:
             return None
         try:
-            return int(num)
+            value = int(num)
+            # We return absolute magnitude; sign is not needed for threshold
+            return abs(value)
         except ValueError:
             return None
 
@@ -227,4 +240,3 @@ class OpenInsiderTopCrawler(BaseCrawler):
             f"抓取時間：{datetime.now().isoformat()}\n來源：\n- " + "\n- ".join(self.urls)
         )
         return subject, body
-