A low put option premium and a high call option premium can indicate a bullish market sentiment.

In options trading, a put option gives the buyer the right, but not the obligation, to sell an underlying asset at a predetermined price (strike price). The price of a put option is known as the put option premium. A low put option premium implies that the market is optimistic and expects the price of the underlying asset to remain stable or increase in the future.

On the other hand, a call option gives the buyer the right, but not the obligation, to buy an underlying asset at a predetermined price. The price of a call option is known as the call option premium. A high call option premium implies that the market is optimistic and expects the price of the underlying asset to increase in the future.

A low put option premium and a high call option premium can indicate that the market is bullish, meaning that investors expect the price of the underlying asset to increase in the future.