I see a chart with a bad data point. How can I get you to fix it?
StockCharts Support January 26, 2009
Despite our best efforts, sometimes outlying data points get into our
database. If you spot a suspicious looking quote, please report it to
us using our Feedback form and we'll investigate. In the form, please
include a link to the chart in question and a description of what you
are seeing on the chart. Please keep the following things in mind when
reporting bad data:
Check to see if other web data sources have the same bad information. We've found that the data at Yahoo Finance
is pretty accurate and the first thing we usually do whenever we
receive a bad data report is to compare our data to Yahoo's. If our
numbers match Yahoo's, then we will need more documentation from you
about why you think the change should be made.
We adjust our historical data to account for splits and distributions. We've written several articles
about why we do this. Check our Data Adjustments page
to see if this symbol has recently undergone a split or distribution before reporting the problem.
We usually do not change outlying
data points on our intraday charts since we do not have an independent
source to compare things to. It is not uncommon for intraday charts to
contain points that are outside of a stock's daily quote range. The
daily quote range is audited by the exchanges after the close and may
be updated later as part of that audit process. Intraday data is not
audited in that way.
Daily quotes are not "official"
until after 6:30PM Eastern due to the auditing process mentioned above.
You should wait until after then to report issues with today's quotes.