Signal Latency
Also known as: execution latency, signal delay, end-to-end latency
What is it?
Signal latency is the total amount of time that passes between the moment a trading opportunity is spotted in the market and the moment the resulting alert actually shows up where you can act on it, such as on your phone, your browser extension (a small add-on that runs inside your web browser), or your trading platform. Think of it like the delay between someone shouting an instruction and you finally hearing it. The lower this delay, the more closely the price you trade at matches the price that originally triggered the alert.
Latency is usually measured in milliseconds, which are thousandths of a second, and it is counted end to end, meaning the whole journey rather than just one piece of it. That journey includes the time to detect the setup, the time the message spends traveling across the internet, and the time it takes to appear and draw on your screen. This matters because markets move continuously.
On fast-moving instruments, even a few hundred milliseconds of extra delay can mean the price has already shifted by the time you see the alert, so you enter at a worse spot than the one you were shown. For slower, longer-term trading a small delay barely matters, but for very short-term trades it can be the difference between a planned entry and a poor one. When comparing providers, what counts is how fast the alert reaches your own device, not just how quick their internal engine claims to be.
Why it matters: On fast instruments a few hundred milliseconds can be the gap between the entry you were shown and a worse fill.
End-to-end latency = detection time + network transit + delivery/render time
On sub-minute and OTC expiries, added latency directly shifts your effective entry and can flip a winner into a loss.
Real-world example
A breakout fires on EUR/USD; a 10 ms pipeline reaches your extension before the candle closes, while a 2-second relay shows it half-finished.
How SignalBots handles it
SignalBots targets sub-10 ms end-to-end delivery by pushing signals over extensions, connectors, and webhooks instead of slow polling.
Pro tip
Judge a provider by end-to-end latency to your own device, not just their internal engine speed.
Common pitfalls
Confusing latency with refresh rate - a dashboard that repaints every second can still show a signal generated seconds earlier.
Frequently asked questions
What is a good signal latency?
For scalping, sub-minute, and OTC trades aim for under a few hundred milliseconds end to end; multi-second delays are only fine for higher-timeframe setups where price moves slowly.
Does latency matter if I trade manually?
Yes. The faster the signal reaches you, the closer your fill is to the price that triggered it. Latency sets the best case, and your own reaction time adds to it.
How is latency actually measured?
It is measured end to end, from the moment the setup is detected to the moment the alert appears on your device, usually in milliseconds. A provider's internal engine speed is only one slice of that total.
Can a slow internet connection add latency?
Yes. Part of the delay is the time the message spends traveling across the network, so a slow or congested connection adds to the total. A stable connection keeps that portion small.
Is lower latency the same as better signals?
No. Low latency only means the alert reaches you quickly; it says nothing about whether the underlying idea is good. A fast feed of poor signals is still poor, and all trading carries risk.