Single-stock ETFs allow US investors to bet big on popular stocks

Investors in the US markets have a new way to bet on high-profile stocks. Regulators are suggesting that they do so with caution.

AXS Investments on Thursday launched a set of exchange-traded funds tied to the shares of PayPal Holdings Inc., nike Inc., pfizer Inc. and NVIDIA Corporations that are designed to enhance their daily performance, or the opposite of that performance. Wants to produce the inverse of another fund Tesla Inc. Daily returns of , without using leverage.