I calculate trend on a time frame that is at least 5 times longer than my entry time frame. And many times, I use a 3rd time frame higher than that as well. I may trade against the trend as I see it, but those would have specific moves planned and tight room to make a profit.
For example---yesterday the trend after 1 pm was clearly down on the 15 minute chart, so longs would not be entered. This would confirm the 5 minute chart that also indicated the downtrend. Then the 1 minute chart would provide the oscillating, and or continuation, short entry and exit signals.
The same could be said from the open until 1 pm showing the 5 and 15 minute trends to be long, so shorts would not be entered on the 1 minute.
I have found that if trend cannot be identified on the larger and middle frames, I can enter either way on the short frame and buy and sell signals come very quickly after each other creating decent 2 way trading.
Here is DDF (with bars formatted to above/below it with a reset period that are uncolored) applied to last night's Globex open clearly emphasizing overnight down trend:- Same I do for RTH open.
That being said, in my view, weekly and daily trends have turned slightly up and so trading an hourly chart for me would be to the upside.
Are you still looking short and considering the trend down? I re-entered a swing long at 3900. Will add on a breakout above 3915/20. Small size (MES). From my POV, the trend is not down on the hourly. It's range bound and possibly turning higher. The problem with trend trading is that by the time it's identified you're often late to the party and it's about to reverse. Except when you get a really strong trend of course.
And with the overnight downtrend, I see that as an opportunity to get a good jump higher today. Perhaps profits can be made if played properly and risk averse.