Absolutely. Not so much in market mechanics, but because people believe and code their systems to the Fib numbers.
This is why you see GGT MAs of 2,3,5,8,13,21,34,55...
As an aside, I note that the SPY finished below the YPP and that IWM finished below SS3, with the Q's significantly below QPP and SS1. These are now significant resistance levels....
Make it a great Thanksgiving all.
Regards,
pgd