it's going heiner -- higher after elon musk paid a trip to china. receiving tentative clearance for driver assistance software in the world's biggest auto market. crank joins us now with the details. how much work is tentative doing in that sentence for approval? >> we know that there are some conditions that tesla is going to need to meet to bring this to market and that they were able to check some of those boxes while musk paid beijing a visit on sunday. what we don't know is what boxes are still left to be unticked. they are partnering with baidu. they are needed for mapping systems in china. we also know that they have gotten the ok for how to handle data security and the private information of their customers. it still remains to be seen just how quickly tesla can bring this to market. notably, this is a company that has sworn off the need for mapping and navigation. or how it integrates the baidu offering into what it has marketed from full self-driving, that remains to be seen. katie: clearly not holding back the stock this morning, tesla sh