Forecast Horizon
Also known as: prediction horizon, forecast window, time horizon, projection period
What is it?
A forecast horizon is how far ahead a prediction is meant to apply, and it is the piece of information that makes any market call testable rather than merely quotable. Without it, no forecast can be wrong. Saying EUR/USD is heading to 1.12 is unfalsifiable, because there is always more time in which it might.
- 1Intraday - hours Driven by session liquidity, positioning and scheduled releases. A stop of 10 to 25 pips is proportionate. Rate differentials tell you almost nothing on this window.
- 2Swing - days to two weeks Driven by structure, momentum and the current data run. A stop of 50 to 150 pips is proportionate. Needs room to survive a bad session without invalidating the idea.
- 3Positional - one to three months Driven by rate expectations, real rates and growth. Stops are measured in hundreds of pips, which means a much smaller position for the same risk.
- 4No horizon stated The forecast cannot be wrong, so it cannot be scored. Treat it as commentary rather than as a signal, whatever level it names.
Saying EUR/USD reaches 1.12 within thirty days is a claim that resolves. The horizon also decides what kind of information can possibly help: an intraday call is driven by session liquidity, positioning and scheduled releases, while a six-month call is driven by rate differentials and growth, and neither set of inputs tells you much about the other's window. The practical consequence is that horizon has to match everything else in the trade.
A 30-day view sized with a 20-pip stop will be stopped out by ordinary noise long before the thesis has a chance to resolve, and a scalping signal held for a week has left the conditions it was generated under. When you read any forecast, find the horizon first; if it is not stated, the forecast cannot be scored and should be treated as commentary rather than as a signal.
Why it matters: A forecast with no stated horizon cannot be wrong and therefore cannot be scored, which makes the horizon the first thing to look for in any market call.
A stop distance sized for one horizon and a thesis built on another produces trades that are stopped out by noise long before the idea has resolved.
Real-world example
A 30-day view on EUR/USD reaching 1.12 was traded with a 20-pip stop. The pair moved 60 pips against the position in the first session, ended the month at 1.1180, and the trade was closed for a loss on a call that proved correct.
How SignalBots handles it
SignalBots signals carry an expiry alongside their entry, stop and target, so the window a setup is valid for is stated rather than left for you to assume. See /risk-warning.
Pro tip
Match your stop distance to the horizon, not to your risk appetite. A monthly thesis needs room for a month of noise, or it is not really being tested.
Common pitfalls
Holding a short-horizon signal past its window in the hope it comes good, which converts a defined trade into an open-ended position with no thesis left.
Frequently asked questions
Why does a forecast need a horizon at all?
Because without one it can never be shown to be wrong, and a claim that cannot be wrong carries no information. The horizon is what turns an opinion into something that resolves and can be scored.
How do I choose the right horizon?
Match it to what actually drives the move you are trading. Session liquidity and scheduled releases operate intraday; rate differentials and growth operate over months. Pick the horizon on which your reasoning has any purchase.
Does a longer horizon mean a more reliable forecast?
No. Longer horizons average out short-term noise but accumulate more unknowns, so both ends of the range are hard in different ways. What longer horizons do require is a wider stop and more patience.
What happens when a signal passes its horizon?
The conditions it was generated under no longer hold, so it should be closed or re-evaluated rather than simply held. This is what a signal expiry exists to enforce.
How does horizon interact with position sizing?
Directly. A longer horizon needs a wider stop to survive normal movement, and a wider stop means a smaller position for the same risk. Choosing the horizon effectively chooses the trade size. Your capital is at risk.
Trading involves substantial risk of loss. Historical and backtested results do not guarantee future performance. Read the full risk warning.
