diff --git a/src/screener/t_sunnyband.py b/src/screener/t_sunnyband.py
index 40c704b..e9a91d7 100644
--- a/src/screener/t_sunnyband.py
+++ b/src/screener/t_sunnyband.py
@@ -93,6 +93,7 @@ def get_valid_tickers(min_price: float, max_price: float, min_volume: int, inter
     """Get tickers that meet the price and volume criteria"""
     client = create_client()
     yesterday = (datetime.now() - timedelta(days=1)).date()
+    today = datetime.now().date()
     
     if interval == "daily":
         table = "stock_prices_daily"
@@ -101,10 +102,10 @@ def get_valid_tickers(min_price: float, max_price: float, min_volume: int, inter
     else:
         table = "stock_prices"
         date_col = "window_start"
-        # Get yesterday's timestamp range
-        start_ts = int(datetime.combine(yesterday, datetime.min.time()).timestamp())
-        end_ts = int(datetime.combine(yesterday, datetime.max.time()).timestamp())
-        date_condition = f"{date_col} BETWEEN {start_ts} AND {end_ts}"
+        # Get today's trading hours timestamp range (9:30 AM to 4:00 PM EST)
+        market_open = int(datetime.combine(today, datetime.strptime("09:30", "%H:%M").time()).timestamp())
+        market_close = int(datetime.combine(today, datetime.strptime("16:00", "%H:%M").time()).timestamp())
+        date_condition = f"{date_col} BETWEEN {market_open} AND {market_close}"
     
     query = f"""
         SELECT DISTINCT ticker