can't connect to yahoo

c = yahoo; error using yahoo (line 63) Unable to connect or retrieve data from given URL.

Answer 1

[MathWorks Support Team]

The MathWorks Support Team recently posted an update on this issue. Here is the answer to save you the click:

“In April 2017, Yahoo introduced some changes in the protocol of their API. These changes prevented the Datafeed Toolbox from connecting to the service. The following webpage contains the workaround for this issue and instructions on how to apply the fix. https://www.mathworks.com/support/bugreports/1571158 ”

[Xander Mann]

Today a some of us have been getting the error:

Error using yahoo/fetch (line 387) Unable to return historical data for given security.

Has Yahoo changed something again? Thanks

[Fabio Pasquali]

i have the same problem

[Denis Alaev]

It seems that after several changes Yahoo Finance closed their API forever. The API was closed on May 15, one month ago already.

I've tested several alternatives and found that https://eodhistoricaldata.com the best one for those who used Yahoo Finance. They provide raw data, adjusted closes and splits/dividends.

They also have CSV output, with very similar format for Yahoo Finance users.

Also there is a https://intrinio.com/ data provider, looks good, but they much more expensive, have no data for Mutual Funds and API is very different in compare to Yahoo Finance. Then you need to significantly change your code.

Answer 2

[Artur Sepp]

It appears that Yahoo have changed the http to the encrypted https. You should now create the queries using 'https://ichart.finance.yahoo.com/table.csv?s=' + requests instead of 'http://ichart.finance.yahoo.com/table.csv?s=' + requests. This solution is a bit messy than using the conventional yahoo handle in the matlab datafeed packadge. It took me a few hours to re-write my data fetching analytics...

Matlab function c=yahoo is a build-in one and cannot be overwritten with something like c=yahoo('https://ichart.finance.yahoo.com'). So we can only wait for Matlab to update the datafeed toolbox to pick up this change from Yahoo. I hope that someone from Matlab support team would read this post and take the needed action.

[Denis Alaev]

No, it appears that Yahoo closed the API forever...

Answer 3

[Adriano]

Hello! I contact Matlab support and they give me a new code for datafeed toolbox. Now it works! You should do the same if you want fix the problem quickly.

[Adhish Aggarwal]

Hi Adriano, Can you post the code that Matlab support gave you?

Answer 4

[Alexandre Amorim]

MATLAB uses Yahoo's API under the hood. Around April 18 Yahoo introduced some changes in the protocol of their API. These changes prevented the Datafeed Toolbox from connecting to the service.

The development team implemented a fix that takes into account those changes, but the fix needs to be applied manually. To apply the fix, follow these steps:

1) Download the attached files: 'yahoo.m' and 'fetch.m'

2) Remove the following file

   %MATLAB_ROOT%\toolbox\datafeed\datafeed\@yahoo\yahoo.p
   %MATLAB_ROOT%\toolbox\datafeed\datafeed\@yahoo\fetch.m

where %MATLAB_ROOT% can be found with the following MATLAB command:

 >> matlabroot

3) Place the downloaded files in the following locations:

    %MATLAB_ROOT%\toolbox\datafeed\datafeed\@yahoo\yahoo.m
    %MATLAB_ROOT%\toolbox\datafeed\datafeed\@yahoo\fetch.m

4) Run the following MATLAB command

     >> rehash toolboxcache
     >> clear classes

Now you should be able to retrieve historic and current data as usual:

    >> % Current data
    >> fetch(yahoo,'IBM')

Answer from: https://www.mathworks.com/matlabcentral/answers/335949-datafeed-returns-an-error-using-fetch-function#answer_263844

Thanks to Shashank

[Andy]

Fetch may work as in your command: fetch(yahoo,'IBM')

But try this: K>> d = fetch(c,'IBM',now) Error using yahoo/fetch (line 318) Unable to return data for given security and date.

K>>

Or actually, try any example from the yahoo fetch doc page. It will fail in R2016b (patched according to the above description).

[Steven Lord]

The bug report has been updated since that answer was posted.

Answer 5

[Jeremy Shaw]

i have this problem also, worked fine last week, now fails; the API/Yahoo has a problem???

[Adriano]

I have the same problem and nobody help us!

[Walter Roberson]

You should contact Mathworks technical support.

The regular volunteers who answer questions here do not happen to use that toolbox.

[Octavio Garcia]

....after read a post, a guy changed http by https in the URL, and now WORKS!! using urlread

[temp, status] = urlread(strcat('https://ichart.finance.yahoo.com/table.csv?s='...
,tickers{i},'&a=',bm,'&b=',bd,'&c=',by,'&d=',em,'&e=',ed,'&f=',...
 ey,'&g=',freq,'&ignore=.csv'));% urlread2.urlread2( ... do the same

[Adhish Aggarwal]

It is still not working.

Answer 6

[Calder]

Help us matlab!!