This indicator plots vertical lines at the scheduled times of US Federal Reserve's FOMC Meeting Announcements. Usually, that time or the 24 hours before and after could see big moves in markets. You can change those dates and times in the settings, and could use the indicator option "Add this indicator to entire layout" if you want to easily reflect that across...
AMEX:SPY Comparison of the Overnight Bank Fund Rate and the Effective Federal Funds Rate. The Fed sets a discount rate of 100 basis points above the effective federal funds rate to discourage ("penalize") banks from borrowing from its reserves. If lending banks have excess in their reserves, the borrowing banks have ease in negotiating a lower rate overnight...