sandisk is up 8%. the market is mixed. the dow is lower by 39. the nasdaq is gaining 5.he s&p right now is down by 3. grace and elizabeth? >> thank you, jason brooks with kcbs and cbsmoneywatch.com. have a good weekend. >> reporter: you, too. >>> blistering temperatures are expected once again today in parts of the midwest and the northeast. >> already, that heat wave is blamed for more than 20 deaths. and as carla sues tells us the heat wave is affecting millions. >> reporter: soaring temperatures on the national mall. more than 30 states are baking under a heat advisory. a wave that's taken lives and put millions on high alert. but in the capital, some tourists are taking it in stride. >> extremely hot but, you know, we can take it. >> reporter: antoine toller from north carolina hundreds of miles away but still under the same heat blanket. and looking questions? >> well, we have had triple digits figures in texas in houston. >> reporter: cooling centers became boston's oasis. ice sold faster than could melt in cleveland. and kids from columbus to the capital cooled of