What do you mean? I was under the impression that including SPCX has been massively beneficial for Nasdaq. It creates lots of trading volume and sends a quiet signal to other massive tech companies looking to IPO to come to them, rules be damned. So they're definitely extremely lucrative for Nasdaq.
Having the stock traded on their board is good for them. They also maintain an index. Elon made inclusion in the index a prerequisite for trading the stock on the board.
> Elon made inclusion in the index a prerequisite for trading the stock on the board
Source?
He may have claimed this. But he has no power to. Once a stock is publicly listed, every exchange can trade it. Where Musk had influence was on to whom he paid his listing fee.
"SpaceX stock is expected to be listed on the Nasdaq. To secure such a high-profile listing, While listing requirements remain unchanged, Nasdaq recently amended its index-inclusion rules to accommodate companies like SpaceX when they go public."
Notice a listing on the board and an inclusion in an index are two different things. Nastaq changed the index to secure the listing of SpaceX on their board.
In this case I think it is, because they're talking about whether a particular deal with be lucrative for one particular company named Nasdaq Incorporated.
Much like how Wile E. Coyote is a "safe" customer for Acme Inc, even though he purchases dangerous explosives and deploys them in reckless ways.