I'm not wondering when does the price of the stock gets updated. I'm wondering when does Yahoo finance updates information like p/e ratios, price estimates, gross profits, free cash flows, etc. I'm wondering about the detail information of the company's balance sheet and the likes?
From the information I found here it seems that Yahoo Finance updates all the data in real-time. They get the information from other sources thought, so Yahoo receives updates as soon as the sources upload them.
Keep in mind that some of the informations change periodically, because they are based on data that is calculated every X months, for example the p/e ratios you where asking about:
Share prices change on a daily basis and new earnings figures are released every three months. As a result, a company’s P/E ratio will change constantly.
Source: Yahoo Finance