content: import React from 'react';
  import PerformanceChart from './PerformanceChart';
  import Nasdaq from './Nasdaq';
  import PublicPreference from './PublicPreference';
  import UserBehavior from './UserBehavior';
  
  const Charts = () => (
    <div className="content">
      <div className="container-fluid">
        <div className="row">
          <div className="col-md-6">
            <PerformanceChart />
          </div>
          <div className="col-md-6">
            <Nasdaq />
          </div>
        </div>
        <div className="row">
          <div className="col-md-6">
            <PublicPreference />
          </div>
          <div className="col-md-6">
            <UserBehavior />
          </div>
        </div>
      </div>
    </div>
  );
  
  export default Charts;