neilsen did not comment on what the widest discrepancy was. it is possible that in ratings that are very close it could change the rankings of shows and is unclear how this has impacted ad dollars. neilsen says the errors are within the margin of statistical error. neilsen says this difference was not noticeable until this fall tv season and the glitch has been corrected but this certainly deals a real blow to neilsen's reputation. back to you. >> absolutely it does. thank you. that is a story we will watch very closely. let's go up to morgan brennan at the nasdaq because it is down almost 1% or was down almost 1%. the chip makers really getting hit hard. you are following the big movers and you have a lot of them on your plate today. >> we are down about 38 points. we are coming off the lows of the day. right now on track for the worst weekly close sins may 2012. here is what is leading the selloff. it is the semi conducters and chip makers after microchip warned on revenues citing weak demand saying the entire industry headed towards a corre

neilsen holdings. >> nlsn up 1.5%. it was upgraded from buy to hold.y think the recent selloff is overdone and bump target. they see 20% upside. the stock has been down. >> this is our final under the radar name of the week. nexstar. they own a ton of o&os. many time champion there. . ever corp upping it to a buy. about 30% upside. shout out to nbc affiliates that nexstar owns. >> now to talking numbers. let's talk fear and greed. this week's sell off sending the vix measures options spreads to highest level since february. is there more volatility to come? is the sky really blue? let's talk numbers with erin gibbs and todd gordon. todd, i start with you because this is in some ways a technically driven index. once the fear kicks in levels start to get noticed. what are you seeing? >> we are at a very interesting juncture with the s&p and the vix. it is timely in that the first chart dates back to exactly one year ago. we failed at respected trim line resistance in the vix and we are testing support in the s&p. so this is exactly a 12-month trend line.