In 2023 Robinhood extended its trading hours becoming the first U.S. brokerage to offer 24-hour trading in individual stocks.
We needed to express in the line chart, that the market didn't close past regular trading hours. Given the intricacy of the app's interface, management asked us to avoid introducing new components and instead work with the current interface to indicate the new trading hours as well as which securities could be traded during the new market hours.