Context:
I see in the link below that market data can be obtained (section "Exchange Data Fees").
Questions (sorry if some questions may sound naive, but I want to be sure):
1) Are these real-time data ?
2) Are these data optional, or is it mandatory to pay for them ?
3) If these data are optional, how can they be paid for ?
4) Does it also provide historical intraday data ?
5) If it does provide real-time data for the markets I want to trade, is another data provider needed? (I'm wondering because NT prices are quite competitive compared to other data providers, so I'm wondering if something is missing or if there's something I haven't understood)
Thanks in advance.
Sincerely.
The link :

Comment