Hi.  I have several questions:

1.  Can I open multiple trades at the same time?  You said the max bet is 0.50 BTC...Say I think S&P500 is going down over the rest of the day.  Can I place 10x trades for 0.50 each that it will go down (each being send separately from the same address+?

2.  Does the max include the last 4 digits for time?  If I want a to place a trade for 0.50 BTC that will last 90 minutes...can I send 0.5000000090?  Will this trade be rejected and sent back since technically it is over 0.50?  If so, can you please change the max bet to something like 0.50001?

3.  Say there is 110 minutes left in the trading day and I want to buy a S&P500 trade that will expire at the end of the day.  If I send a trade for 120 minutes that will technically expire after the market closes, will the trade be accepted and finished at the closing price, or the opening price the next day? 

Thank you.