Insider Trading (forbidden by law in the US and elsewhere)

https://www.ft.com/content/1171d623-3709-4f6e-8ded-a5df4ec57696?syn-25a6b1a6=1

Traders placed $580mn in oil bets ahead of Donald Trump’s social media post on Iran talks

Thousands of Brent and WTI contracts changed hands 15 minutes before president’s message on Truth Social

Financial Times