This Analysis show that there is a gap between TESCO or Morrisons and M&S os Sainsbury it means that:
M&S os Sainsbury should be a long position and TESCO or Morrisons should be a short position to close the gap.
Further analysis would be required on each Market to define the investment
M&S os Sainsbury should be a long position and TESCO or Morrisons should be a short position to close the gap.
Further analysis would be required on each Market to define the investment