VNQI quotes are full of errors?

• get car insurance quotes
• mortgage closing costs

For several months, the Yahoo finance quotes for VNQI have been full of errors - strange spikes in the price, and the wrong closing price. Other sites are reporting it correctly. For example, today Yahoo has VNQI closing at 57.93 (with a ton of weird spikes in the one-day chart), while Morningstar and Google Fincance have the correct closing price of 58.36.


Is this the best way to bring this data error to Yahoo's attention?

VNQI quotes are full of errors?