"Defence stocks make millionaires 95% of the time," a man tells his followers in a TikTok video before pointing viewers towards a handful of companies in the defence sector.

It's one of several videos offering investment tips: some feature creators while others use AI-generated personas to offer stock picks and financial advice to users scrolling through social media in Europe.

But how much of this advice should you actually trust?

A new analysis of 150 popular finance-related TikTok videos by broker comparison website BrokerListings.com suggests that viewers should be cautious.

The videos it studied amassed at least 100,000 views each, covering topics ranging from stocks and cryptocurrency to debt and personal finance.