n>

<span class="c1"># 셀트리온(068270), 2017-01-01 ~ 2018-05-30</span>
<span class="n">df</span> <span class="o">=</span> <span class="n">fdr</span><span class="o">.</span><span class="n">DataReader</span><span class="p">(</span><span class="s1">&#39;068270&#39;</span><span class="p">,</span> <span class="s1">&#39;2017-01-01&#39;</span><span class="p">,</span> <span class="s1">&#39;2018-05-30&#39;</span><span class="p">)</span>

<span class="c1"># KS11 (KOSPI 지수), 2015-01-01~현재</span>
<span cla