Forest Mania

How to play Forest Mania

Yahoo Finance has soured on prediction market Polymarket, closing a deal between the financial news platform and the event contract operator in less than a year after it began. 

The two companies began collaborating in November 2025. As part of the deal, Polymarket provided data for a dedicated prediction market section on Yahoo Finance. The feature provided market-based probabilities of economic, political, and financial developments alongside Yahoo Finance content. 

The Yahoo Finance prediction market section was taken out in April. The companies have now confirmed that the larger deal is also off, as reported by Bloomberg. 

About Forest Mania

The approved text includes a series of restrictions on advertising for online betting and gambling:

Advertising prohibited: Direct or indirect marketing communication regarding betting on radio and television, newspapers, magazines, outdoor media, streaming services, podcasts, social networks, video platforms, apps, websites, blogs, forums, search engines and other internet environments is prohibited.

Messaging and targeted advertising: The restriction also extends to instant messaging, SMS, email, notifications, advertising automatically targeted by algorithms, telemarketing – which shows ads again to people who have already been exposed to certain content – and profiling based on user behaviour.

How to play Forest Mania

The operator has no international locations. Well, it’s a state monopoly, after all. Holland Casino was also one of the first operators to launch online when the market legalised in 2021, with Petra de Ruiter joining the company as CEO the following year.

Petra’s journey to the role started in a hotel management school where she learned the ropes of hospitality, followed by a job at Transavia Airlines, a subsidiary of renowned Dutch operator KLM. This led to 24 years in the aviation industry, in a host of different roles: sales, marketing, operations – all aspects of the business that would later become useful in the casino industry.

By the time Covid came around in 2020, Petra felt she had done enough in aviation and went looking for her next role. As she told me, “Holland Casino popped up and I am somebody who by their nature looks at similarities instead of differences.