Are you sure? It discovers it within seconds following a bad earnings report. It seems hard to know right now whether five days might actually be sufficient or not, seeing as the cat is out of the bag about how unprofitable and debt laden this trillion dollar enterprise is.
If price is fully discovered right after ER then you will see price stabilized right after ER. But in fact post ER prices can wildly differ from the next minute, next day and next week price. It’s speculation and anticipation.