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How to play Sinbad
Each settlement involved cooperation with Kalshi’s investigation.
What distinguishes Santos’ penalty is the exchange’s allegation that he actively issued false or misleading statements to alter prices and profited materially, violating additional rules such as failure to cooperate and manipulative conduct.
These breaches escalated his sanction to a permanent ban and a significantly larger fine compared to others involved.
How to play Sinbad
Prediction market volume attributable to “takers”—recreational and retail traders who pull liquidity from exchanges—is forecast to reach $190 billion this year.
That estimate arrives courtesy of Macquarie and is well ahead of the research firm’s previous estimate of $169 billion in 2026 taker volume.
Takers is a prediction market industry colloquialism for the market participants that swiftly fill buy and sell orders, thus removing liquidity from the marketplace. Conversely, makers are the market participants viewed as liquidity providers and professional or sharp money.
How to play Sinbad
One of the main concerns is Bill 560/2025, which is currently making its way through the council. The proposal prohibits advertising by betting companies at events in the city of São Paulo. This applies to events organised by public or private entities, whether for-profit or non-profit.
The bill prohibits signs, banners, or display panels in arenas, gymnasiums, stadiums and other sports event venues. It also bans advertising on public transport, such as the side panel, exterior or the rear window of buses. The bill imposes a fine of BRL50,000 ($10,000) and a ban on hosting events for up to two years.
The proposal does not explicitly prohibit the display of betting brands on team jerseys, but some city councillors want to include this in the bill.
