for decades, ethough, volatility index, known as the vix has provided a gauge of traders' expectation of future volatility. in the past seven years investment firms have ha concentrated ee traded products whose volume the bas whether this volility measure rises or falls during a given day. the most populare to v on volatility staying low, issued by credit swiss under the symbol ixvt l all of its value on monday's market route. for example, if the vix falls 10% in theday, the xiv goes up 10%. 17 as stocks rallied in a steady calm way, it delivered a 187% return. but when the vix surged by more than 100% on monday from 18 to 38, the xiv was effectively wiped out. not before, though, the managers of the xiv and many other investors using similar strategies were forced to buy futures contracts on the vix to o offset their losses. this activity has been blamed for the contigeed s in the volatility index. in turn it has driven other big investmentors who use the vix has a signal of stock market risk to slash their stock holdings. there is no way to know for sure how important this activity

but yes we continue to make progress even though it is difficult and ethough the chairman continues to want the committee to focus on this attack on what he believes is the deep state. >> waiting for orders. the head of u.s. cyber command says despite russia's continue aid tacks on american democracy, he has received no marching orders from the white house to defer russia. >> as i understand, you said that president trump never ordered cyber com to take any action to thwart anything in the electiones this fall. is that correct? >> i said i've never given any specific direction to take additional steps outside my authority. i have taken the steps within my authority and trying to be a good proactive commander. >> no one from the administration has asked to you take any additional steps? >> i've been granted any additional authority, capacity, capability, that's true certainly true. >> and hell on earth. that's how it is described in the damascus suburb, attacked also with chlorine gas. >> russia claims the rebels gassed their own people for international sympathy. medics say that's ludi