Doesn't always pick tops and bottoms,but i have noticed a 39 hour cycle over recent months which has,on occasion,been useful.I will start keeping a record of it going forward. Note,i don't believe the patterns are an integral part of the cycle,but will point them out as i see them as before.
Should also note that 39 is a multiple of 13- a fib number.But,as on this chart,a half cycle ie 19.5 hrs also often sees a turn.The problem with cycles is they evolve and there are cycles within cycles within cycles..........
However,i never like to completely discard an idea.If it has some small merit,it can.at times be useful,or something to be aware of.The more recent the behaviour observed,the more likely it will repeat in the near future.
Patterns and cycles might be regarded as being in the field of ''fractals' but this kind of thing is not something i would rely on for trading decisions.
A good example is today's chart.The area i am looking at is a gap fill around 1290 (SPX).It would be nice if that coincided at 39hrs from 1333.
Please regard anything i post in this thread as for entertainment purposes only.Attempting to trade based on ''prediction'' has cost me in the past in missed opportunity and money.
The trick i find,is to be aware of a possible cycle/pattern to coincide with a target entry/exit price you would be considering in any case,