I just checked OKX's options products. They have both simplified and chain options. The quarterly options settlements are having an increasingly significant impact on the market, so it's worth paying attention to. I released three video series on options last year. Interested readers can search for them on my homepage under the keyword "options". Simply put, options are about leveraging a small investment for potentially large returns. After time value decays, you lose the premium. The closer the price is to the current price, the more expensive the premium. In practice, the main thing to pay attention to with options is liquidity, because they are mostly pending orders rather than market prices. I personally prefer options with a one-week expiration date for a larger margin of error. I'm planning to buy SNDK options with a strike price of 1000 in one week. (dyor, for reference only)