Update app.py

app.py

@@ -11,7 +11,7 @@ def plot_efficient_frontier(dataframes, names):
     
     # Ensure you include the code for the function here
     # Calculate daily returns for each asset
-returns = pd.concat([df['Close'].pct_change().dropna() for df in dataframes], axis=1)
+    returns = pd.concat([df['Close'].pct_change().dropna() for df in dataframes], axis=1)
     returns.columns = names
 
     mean_returns = returns.mean() * 252