A decision, not a prediction
The previous six lessons described the product, its economics, its legal position, its integrity risks, its comparison with a sportsbook and its distribution. None of that tells a reader what to do, and the honest answer is that nobody knows how the American litigation ends. What a professional can do is decide under that uncertainty: build a position that survives more than one outcome, and know in advance which outcome triggers which move. This lesson is a framework for that, by role.
If you run a licensed sportsbook
Decide your posture before the court does. The three routes taken by the largest operators, own an exchange, partner with one, or stay out, each have a cost, and the cost of choosing late is the highest. Owning requires designation or an acquisition and a year of work; partnering requires a negotiation on the four terms in lesson six; staying out requires a plan for the customers in states you cannot serve.
Separate the states. In states where you are licensed, offering exchange contracts to your own customers puts your licence in front of the regulator that granted it, and several regulators have said so. In states where you are not, the contract is the only product you can sell. Most operators drew the line there, and it is a defensible line as long as it is drawn deliberately and documented.
Hedge, if you can. The most valuable use of an exchange for a bookmaker is not distribution but risk. A book with a large liability on a game can lay it off on a liquid exchange at a better price than any other channel, and an operator that negotiates that right in a partnership has bought something real regardless of how the litigation ends.
Prepare the compliance function for an audit it has not had. If you distribute contracts, your responsible gambling, advertising and customer-identification processes will be tested against a product they were not designed for. The gaps are known: the 18 to 21 age band, the customers in states that have banned betting, the affiliate promotions that do not fit any existing rule. Close them before a regulator opens them.
If you run an exchange
The customers you cannot identify are the customers who will cost you the venue. Every integrity failure in lesson four, and every enforcement action in lesson three, runs through identification. A regulated exchange has it; a crypto-native venue serving the world does not; and the market that grows is the one regulators can hold to account. Building the compliance function that a gambling regulator would recognise, even where the law does not yet require it, is the single investment with the highest option value.
Join the integrity structures before you are made to. Reporting suspicious activity to sports bodies, sharing alerts with the associations that pool them, and signing data and integrity agreements with leagues cost little and buy the argument that an exchange is a responsible participant in sport rather than a parasite on it. The sportsbooks made that argument for a decade; it is available to exchanges for the price of joining.
Do not list what a participant controls. The manipulable-market boundary in lesson four is the one that gives regulators their best examples. Contract selection is the cheapest integrity tool an exchange has, and the venues that have used it loosely have supplied the case against the whole category.
Model the state-by-state outcome. A win for the states does not close the exchange; it geofences it. An exchange that knows today which markets it would withdraw in which states, and has the technology to do it in a week, has a business under every outcome. One that has to design that after a ruling does not.
If you are a supplier, a data company or an affiliate
A supplier of pricing, data or content to an exchange is, in the states' reading, supplying an unlicensed gambling operator. Several state regulators have said that licensed suppliers should consider their own licence when choosing customers, and a supplier with licences in twenty states should treat that as a live risk rather than a rhetorical one. The practical mitigations are the ones lesson six sets out for partnerships: contractual exit, geographic carve-outs and a clear allocation of responsibility if a state acts.
Affiliates face the same question with less protection. Promoting exchange contracts to customers in a state that treats them as illegal betting is promoting illegal betting, and affiliate licensing regimes in several states apply. The Marketing Compliance course's framework for approving, monitoring and terminating affiliates applies directly; the missing step is deciding, in advance, which states an exchange promotion may target.
If you are a regulator
Decide what you are protecting. The states' case has three components: revenue, exclusivity for licensees and consumer protection. They are argued together and they are not equally strong. Revenue is a fiscal interest the public does not weigh heavily; exclusivity is a commercial interest the licensees weigh heavily and the public does not; consumer protection, particularly the age gap and the absence of harm-prevention obligations, is the argument that has carried weight in court and with the public. A regulator that leads with the third and treats the first two as consequences is in the strongest position.
Build the bridge you may need. If the exchanges win, a state that has a licensing route for exchange-style products under its own law has a way of bringing them inside the tent, with tax, age limits and obligations. Britain's licensed betting exchanges are the template. A state whose only tool is prohibition will find, if prohibition is preempted, that it has no tool at all.
Watch the demand side. Korea's decision to pursue the traders rather than the platform, and the on-chain analysis that made it possible, showed that a public blockchain identifies its users after the fact. That is an enforcement lever no gambling regulator has used before, and it changes the calculation for customers in a way a domain block does not.
If you are an investor or an analyst
Value the product under three scenarios and weight them. A full exchange win produces a national, lightly taxed betting product with structural cost advantages and the incumbents forced to compete on its terms; the exchanges are worth a great deal and the sportsbooks' margins compress. A full state win produces a product confined to non-sport events, which is a real but small business, and the sportsbooks' 2025 acquisitions of exchanges become expensive options that expired worthless. The split decision most lawyers expect produces something in between, with years of state-by-state litigation, which favours the operators with the compliance functions and legal budgets to run it.
The number to watch is not volume, which has grown under every scenario so far, but the proportion of volume from sports. An exchange whose volume is mostly sport is a sportsbook with a legal argument. One whose volume is mostly economics, politics and events has a business the states cannot touch. The public reporting lets you calculate the ratio, and it has moved sharply toward sport.
The question to keep asking
Every decision in this framework comes back to a question that the course has tried to keep open: is an event contract on a game a bet? The exchanges say no and have a federal designation to prove it. The states say yes and have a definition of gambling that has never needed a court to explain it. The customers do not care what it is called. The professional's job is not to have an opinion on the label but to have a plan for both answers, and to know which of the two would change the plan.
What to take from this course
A prediction market is an exchange on which customers trade a binary contract with each other, and every property of the product follows from that: price is probability, liquidity is quality, the venue earns a fee rather than a margin, and the risks are resolution, manipulation and insiders rather than liability. The legal fight is jurisdictional, between federal derivatives law and state gambling law, and the first appellate rulings went to the states while the Supreme Court decides. The product reached its customers through brokerages, then sportsbooks, and it is now distributed by the operators who spent a year trying to stop it. Whatever the courts decide, the exchange model is inside the gambling industry now, and the professionals who understand it will be the ones asked what to do next.