A dotted line on the chart; a notice here and on your phone when it trades through. One shot each.
Where the data comes from. Candles are live: the market's consolidated feed for history and Alpaca's IEX feed for the newest minutes, or your own tastytrade stream when it is connected. Prices refresh every ten seconds; the chain every three minutes. Every order here goes to your paper account unless your Account is set to your broker, in which case the ticket opens at your broker for you to place. Education only, not financial advice.