code: def get(self, end_ix):
          
          if self.most_recent_ix == end_ix:
              return self.current
  
          target = end_ix - self.cal_start - self.offset + 1
          self.current = self.window.seek(target)
  
          self.most_recent_ix = end_ix
          return self.current
docs: Returns
          -------
          out : A np.ndarray of the equity pricing up to end_ix after adjustments
                and rounding have been applied.