I see a lot of differences between the adjusted close price in the Yahoo finance web interface and the adjusted close price returned from their API.
Take Apple (AAPL) as an example. If you look up the the adjusted close on October 31, 2016 (and many other dates) you will see these differences.
If I look up the historical quote via the web interface then I see an adjusted close price of 113.54. However, if I look up that same quote via their API, then I get the adjusted close price as 112.96.
What's happening here?
By the way, I also checked Apple's adjusted close price data on the split date (6/9/2014) and the adjusted close reported on web interface was an accurate reflection of the split ratio, but the API data was not. Does that mean I cannot trust the API data?