A new release of <a href="http://www.quantmod.com/" target="_blank">quantmod</a> is now on <a href="https://cran.r-project.org/package=quantmod" target="_blank">CRAN</a>! The only change was to address changes to <a href="https://finance.yahoo.com/" target="_blank">Yahoo! Finance</a> and their effects on <span>getSymbols.yahoo()</span>.  GitHub issue <a href="https://github.com/joshuaulrich/quantmod/issues/157" target="_blank">#157</a> contains some details about the fix implementation.<br><br>Unfortunately, the URL wasn't the only thing that changed.  The actual data available for download changed as well.<br><br>The most noticeable difference is that the adjusted close column is no longer dividend-adjusted (i.e. it's only split-adjusted).  Also, only the close price is unadjusted; the open, high, and low are split-adjusted.<br><br>There also appear to be issues with the adjusted prices in some instruments.  For example, users reported issues with split data for XLF and SPXL in GitHub issue <a href="https://github.com/joshuaulrich/quantmod/issues/160" target="_blank">#160</a>.  For XLF, <span>there a split </span>and<span> a dividend on 2016-09-16, even on the </span><a href="https://finance.yahoo.com/quote/XLF/history?period1=1473138000&period2=1474866000&interval=1d&filter=history&frequency=1d">Yahoo! Finance historical price page for XLF</a><span>. As far as I can tell, there was only a special dividend.  </span><span>The problem with SPXL is that the adjusted close price isn't adjusted for the 4/1 split on 2017-05-01, which is also reflected on the </span><a href="https://finance.yahoo.com/quote/SPXL/history?period1=1488088800&period2=1495774800&interval=1d&filter=history&frequency=1d">Yahoo! Finance historical prices page for SPXL</a><span>.</span><br><br>Another change is that the downloaded data may contain rows where all the values are &quot;null&quot;.  These appear on the website as &quot;0&quot;.  This is a major issue for some instruments.  Take XLU for example; 188 of the 624 days of data are missing between 2014-12-04 and 2017-05-26 (ouch!).  You can see this is even true on the <a href="https://finance.yahoo.com/quote/XLU/history?period1=1417672800&period2=1422079200&interval=1d&filter=history&frequency=1d" target="_blank">Yahoo! Finance historical price page for XLU</a>.<br><br>If these changes have made you look for a new data provider, see my post: <a href="http://blog.fosstrading.com/2017/06/yahoo-finance-alternatives.html" target>Yahoo! Finance Alternatives</a>.