ben baldanza, it's aleurto have you on. we're back right after this. pd-l1.w the world fights cancer. blocking the pd-l1 protein, lets the immune system attack, attack, attack cancer. pd-l1 transformed, revolutionized, immunotherapy. pd-l1 saved my life. saved my life. saved my life. what we do here at dana-faber, changes lives everywhere. everywhere. everywhere. everywhere. everywhere. is skincare from around the world better than olay? olay regenerist faced 131 premium products, from 12 countries, over 10 years. olay's hydration was unbeaten every time. face anything. find out more at olay.com >>> let's welcome one of our favorite guests, katie stockton. good to have you back on what are some of the key technical levels, particularly, i don't know if you're watching the nasdaq, because everybody else is, and they're worried about support, what do you see right now, technically >> there have not been a lot of break downs with the pullback that we've seen. certainly there is a meaningful loss of momentum it's not just short-term in nature it's also intermedia