 class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span><span class='op'>(</span><span class='va'>securities_returns</span><span class='op'>)</span>
<span class='fu'>rank_test</span><span class='op'>(</span>list_of_returns <span class='op'>=</span> <span class='va'>securities_returns</span>,
          event_start <span class='op'>=</span>  <span class='fu'><a href='https://rdrr.io/r/base/as.Date.html'>as.Date</a></span><span class='op'>(</span><span class='st'>"2020-03-16"</span><span class='