it's not all bad if things slow down there, so says helen zhu. she'll tell you exactly what you should be buying and selling with chinese stocks multiyear lows. stay tuned. >> can we ask her if she knows about this "call me maybe"? [ male announcer ] trading's like a high-speed train. and you don't want to miss it with thinkorswim by td ameritrade. you get knock-your-socks-off tools, simple one-click orders, real-time paper trading to hone your skills, plus anytime you need it support. ♪ stocks, options, futures, and forex. get your trading on track. thinkorswim by td ameritrade. trade commission free for 60 days, plus get up to $600 when you open an account. [ male announcer ] why not talk to someone who owns an adjustable version of the most highly recommended bed in america? ask me about my tempur advanced ergo. goes up. goes up. ask me what it's like to get a massage anytime you want. goes down. goes down. [ male announcer ] tempur-pedic brand owners are more satisfied than owners of any traditional mattress brand. ergonomics. [ male announ