$ProShares Ultra VIX Short-Term Futures ETF (UVXY.US)$ I did...

稳中涨 : You can't be in a hurry to play this; you have to have good buying points to get in.

稳中涨 : It's best to wait for the index to reach a new high before buying in batches

70213133 : What kind of thing is this?

cy9344 70213133 : It can be used as an index that is inversely compared to the market

70213133 : I've been in and out a few times and haven't made any money