Switch from lastPrice to ask

app.py

@@ -109,7 +109,7 @@ def yf_atm_call_price(ticker: str, dte: int = 0) -> float:
         float: The ATM call option price.
     """
     _, _, _, call_row, _ = _get_atm_option_data(ticker, dte)
-    return float(call_row.get("lastPrice", 0.0))
+    return float(call_row.get("ask", 0.0))
 
 @tool
 def yf_atm_put_price(ticker: str, dte: int = 0) -> float:
@@ -124,7 +124,7 @@ def yf_atm_put_price(ticker: str, dte: int = 0) -> float:
         float: The ATM put option price.
     """
     _, _, _, _, put_row = _get_atm_option_data(ticker, dte)
-    return float(put_row.get("lastPrice", 0.0))
+    return float(put_row.get("ask", 0.0))
 
 @tool
 def yf_atm_call_iv(ticker: str, dte: int = 0) -> float:
@@ -169,8 +169,8 @@ def yf_atm_straddle_price(ticker: str, dte: int = 0) -> float:
         float: The total ATM straddle price.
     """
     _, _, _, call_row, put_row = _get_atm_option_data(ticker, dte)
-    call_price = float(call_row.get("lastPrice", 0.0))
-    put_price = float(put_row.get("lastPrice", 0.0))
+    call_price = float(call_row.get("ask", 0.0))
+    put_price = float(put_row.get("ask", 0.0))
     return call_price + put_price
 
 ddgs = DuckDuckGoSearchTool();