Co-location
Also known as: colocation, co-located server, proximity hosting, cross-connect hosting
What is it?
Co-location is renting rack space inside the same data centre that houses a broker's or exchange's matching engine, so your trading server sits metres from theirs and the network round trip collapses from tens of milliseconds to a fraction of one. Distance is the one part of latency that no amount of software optimisation can remove. Light travels roughly 200 kilometres per millisecond through fibre, and a real cable route is never a straight line, so a server in London reaching a matching engine in New York spends about 70 milliseconds on the round trip before a single instruction is processed.
| Where your server sits | Distance to the engine | Typical round trip | Who it actually suits |
|---|---|---|---|
| Home broadband, another country | 5,000+ km | 60-80 ms | Swing and position bots |
| Cloud VPS in the broker's region | Same city | 1-5 ms | Most automated retail traders |
| Co-located rack, cross-connected | Same building | Under 0.5 ms | Latency-sensitive institutions |
Move that same server into the New York facility with a direct cross-connect and the round trip falls to somewhere near 0.2 milliseconds, a reduction of roughly 350 times that faster code simply cannot produce. The honest question is whether you need any of it. A strategy holding positions for minutes or hours is unaffected by 70 milliseconds.
The decision that actually matters for most automated retail traders is not co-location versus home broadband but cloud VPS versus home broadband: a VPS in the broker's own region takes you from about 70 milliseconds to two or three, capturing most of the available benefit for a small fraction of the cost.
Why it matters: Physical distance sets a floor on latency that no code can beat, so where your server sits often matters more for fill quality than how fast your strategy runs.
It removes network distance as a source of slippage, but only strategies that act on millisecond timescales see that benefit reach their results.
Real-world example
Moving an MT5 Expert Advisor from a home connection in Manchester to a cloud VPS in the broker's London data centre cut its order round trip from about 46 milliseconds to 3.
How SignalBots handles it
SignalBots delivers signals over persistent connections and stamps each one, so you can measure how much of your total delay is network distance and judge whether relocating your server is worth paying for. See /risk-warning.
Pro tip
Measure your real order round trip before paying for proximity. Most retail bots discover their delay sits in the strategy's own processing rather than in the network at all.
Common pitfalls
Renting a VPS advertised as low-latency without checking which data centre it actually occupies, and ending up further from the broker than the home connection it replaced.
Frequently asked questions
Is co-location the same as a forex VPS?
No. A VPS is a rented virtual machine that can sit anywhere, while co-location means your server physically occupies the same facility as the matching engine, usually with a direct cross-connect.
How much latency does co-location actually save?
It removes network distance almost entirely, typically taking a cross-continent round trip of 60 to 80 milliseconds down to well under one. The saving only means something if your strategy acts on that timescale.
Can a retail trader buy co-location?
Directly, rarely, since facilities usually contract with institutions. Retail traders reach most of the benefit through a cloud VPS in the same region or a hosting plan the broker itself offers.
Does co-location help a swing-trading bot?
Almost never. A strategy holding positions for hours is untouched by tens of milliseconds, and the money is far better spent on data quality or on reducing the per-trade cost of the account.
What is a cross-connect?
A direct physical cable running between your rack and the venue's inside the same building, bypassing the public internet entirely. It is what makes co-location's headline latency figures achievable.
Trading involves substantial risk of loss. Historical and backtested results do not guarantee future performance. Read the full risk warning.
