I thought this was interesting - It's a different way of looking at trend, that's for sure. An uptrend is the same as a downtrend, just a different direction.
Also, note that this is a 5-day chart and not a weekly chart. See if you can see the difference.
Tim 111.54 last -0.03 on Wednesday, Jun 4, 2014 10:40AM EST
About the grain - well 5d is close to weekly for me :D so i thought it would be closer than daily-to-weekly