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> Anyway, here is the question:
> On a tick chart, how can I tell that the current tick bar is the
> last bar of the day without looking ahead at the next bar?
You can't. Not possible. There's no way of knowing if another tick
is going to arrive.
I think the best you could do would be to do a statistical
approximation of the likelihood of this being the last tick. Look at
the time, look at the tick rate for the last few minutes, look at the
normal last-minute behavior in the last several days (since there is
typically a flurry of ticks just before the close) and you could make
a WAG* at the probability of the current tick being the last. But
you can't know for certain.
(* WAG = Wild-Assed Guess)
Do I still get the free drink? :-)
> This is a real trick on a tick chart. On an hourly it is easy, you
> can just look at the session time.
Even that's not 100% reliable. Some days don't run until the normal
closing time. But presumably you're more interested in the realtime
behavior than in backtesting, so you'd know in realtime if the market
is supposed to close early today.
Why do you want to know? Maybe there's a better way to do what you
want.
Gary
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