1. Buy Protective Puts -- This is a debit trade -- "portfolio insurance" -- that is, paying for the right to sell the stock or Exchange-Traded Fund (ETF) at the "strike price." Not my favorite way to hedge. In fact, this strategy is a "
synthetic call" because it has the same risks and rewards as owning a call option.
2. Sell Covered Calls -- or, if you own long calls instead of the underlying securities, you can create a diagonal call spread. This is a credit trade -- you collect a premium in exchange for a promise to sell stock or ETF at the "strike price" (or, exercise price) of the option.
One of my favorite strategies is the option trader's version: the diagonal call spread (aka, calendar spread). This works well, especially when you "roll as you go." Whether it's covered calls, or a diagonal call spread, it makes sense to write/short-sell the at-the-money, or slightly out-of-the-money, call option and adjust the position as needed.
3. Use an Equity Collar -- This is a combination of 1 and 2. Sell covered calls, collect premium -- and use the premium to buy puts. This is good for those who don't want to exit the bullish stock or ETF position.
This might be done for tax reasons, or some other odd reason. But you limit or eliminate your downside, while allowing yourself minimal upside.
4. Stay bullish on those long China positions, and buy deep-in-the-money puts on other, weak, securities that are members of relatively weaker stock markets.
5. A combination of 1-4.