A new ETF offers investors '100% downside protection' on the stock market. The catch is that it also limits upside.

"There's no free lunch here, so a cap of right around 9.65% is what we're seeing now, with 100% protection over the next 365 days," Calamos said.

https://markets.businessinsider.com/news/stocks/new-stock-market-etf-offers-100-downside-protection-cpsm-calamos-2024-4