Cryptocurrencies have no tangible underlying assets, and thus trading in them is speculative by definition.
All stocks on Serenity are updated as and when their prices and other data change.
Thus stocks updated on Friday will display 3 days in their Last Updated field on Monday.
Stocks that are no longer traded are also retained on Serenity for informational purposes.
But since they can no longer be updated, they will display larger time periods in their Last Updated field.
There is a button labelled Add / Modify Watchlist on your Watchlist.
When you enter a stock name or symbol to add, the screen displays a list of possible matches below from which to select the exact stock. You have to select one of the matches for the system to know exactly which stock you're referring to.
Note: You may not see the drop-down list sometimes, because of the scroll bar on the right.
Learn to customize the Value Investing framework of Benjamin Graham, Warren Buffett's mentor.