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About Happy Fish
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.
What is Happy Fish?
Since the landmark Supreme Court ruling in 2018 that allowed states to legalize sports betting, gambling has become increasingly intertwined with American culture.
Paired with the recent rise of prediction markets—which allow traders to stake money on everything from sporting events to pop culture outcomes—Americans are risking more money on casino-like activities than ever before.
Buffett has repeatedly raised concerns regarding the mainstreaming of gambling and its marketing under the guise of investing. In May, he targeted prediction markets and traders speculating on short-term instruments like 30-minute bitcoin options.
About Happy Fish
Some exchange operators already filed plans to introduce KPI-linked event contracts. Those derivatives would be tied to metrics such as corporate earnings or, in more nuanced cases, Apple iPhone shipments or Tesla deliveries — just two examples — in a given quarter.
While sports event contracts remain the headline-grabbers for prediction market operators, there’s evidence that other categories are experiencing growth. As Bernstein points out, cryptocurrency event contracts account for at least 20% of the turnover on the two largest prediction markets.
In another encouraging non-sports sign, one of those operators notched just $2 million in commodities volume last year, but that figure surpassed $410 million in August alone and is approaching $600 million on a year-to-date basis.