an>      <span class="mf">19.7</span>  <span class="mf">100.0</span>        <span class="n">NaN</span>             <span class="n">NaN</span>             <span class="n">NaN</span>            <span class="n">NaN</span>            <span class="n">NaN</span>
<span class="n">STOCK_B</span>    <span class="n">buy</span>      <span class="mf">19.7</span>  <span class="mf">100.0</span>        <span class="n">NaN</span>             <span class="n">NaN</span>             <span class="n">NaN</span>            <span 