Nasdaq, NYSE, CBOE sue SEC because "access to the information" is money

Transparency

“Under the SEC plan, approved in December, supply and demand data for stocks would be added to public feeds, broadening access to the information which the exchanges currently sell to professional traders at a premium.”

“The Wall Street Journal reported that Cboe Global Markets, which operates the Chicago Board Options Exchange, was also suing the SEC over the issue. Cboe did not immediately respond to a Reuters request for comment.”

and **** Citadel

“The SEC is also dealing with other suits. In October, Citadel Securities sued the commission over its decision to approve a new mechanism for trading stocks at exchange operator IEX Group Inc.”