Right.
Dax trades on Eurex, the Exchange publish the best 10 bids/offers and associated volumes...It's up to your broker whether they distribute this information to you and given bandwidth considerations many just limit you to best bid/offer. As an anonymous Exchange you won't get any other information (like counterparty) so using a cash equity terms like Level 2 is perhaps a little misleading.... Many Futures scalpers and spreaders use the Depth to help them see where size is building up - to counter that there are many (large) traders who will 'spoof' the market by showing large bids and offers with the knowledge it can be seen and may influence others. Another major advantage of being able to see the Depth is to take advantage of the Exchange matching systems - Eurex is First in First Out - if you're 'first' on a 3000.0 bid, your buy will match as soon as anything trades at that price...... if you're behind 250 lots, that has to trade before you get your fill, using the depth you can see where there are 'gaps' in the order book where you can get this advantage. In short, pro's do use the Depth of Market, but the only people who really allow it to influence their trading decisions are the short-term scalpers and spreaders who trade every few seconds/minutes.