You can add a Stock price widget as an asset.

1. Open the Assets tab and select the required folder in the left panel.

2. Click New and select Widget > See more in the menu.

3. In the Add a widget dialog, scroll down, select Finance or do a search. Select the Stock price widget. 

4. In the Stock price dialog:

• give your Stock price widget a name
• if required, add a tag
• add the stock symbol

Note: You can find the symbols for companies on Yahoo finance: https://finance.yahoo.com/

5. In the advanced settings you can:

• define a background color
• define a background image
• define whether to blur the image – this may improve the contrast if you added a background image

6. Click Save.