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Latency glossary · Network fundamentals

Ping, Latency, and Jitter — What Each Means for Your Trading

Traders use "ping", "latency", and "jitter" interchangeably but they measure different things. Understanding what each one tells you — and what it doesn't — changes how you diagnose and fix execution problems.

TL;DR

Ping is a tool that measures round-trip time (RTT). Latency is the actual RTT of your trading connection. Jitter is how much that RTT varies between measurements. For trading, latency sets your baseline fill quality; jitter determines how unpredictable that quality is. Both matter, but jitter can cause problems even when your average latency looks fine.

See the plansFull latency and jitter guide
Ping
A measurement command. The number it returns is your round-trip time (RTT).
Latency
The RTT of your actual trading connection — the number that affects your fills.
Jitter
The variance in RTT between packets. High jitter = unpredictable execution, even at good average latency.

Ping: the tool

'Ping' is both a command-line tool and the colloquial term for the RTT it returns. When you run ping hostname.com, you are sending ICMP packets and measuring how long they take to come back. The result — e.g., 'Reply from X: time=24ms' — tells you the round-trip time at that moment. Ping is useful for getting a baseline but it uses ICMP, which many networks prioritise differently from TCP (what MT4 uses). Your actual MT4 RTT may differ slightly from your ping test. This is why traders should not rely exclusively on ping for latency diagnosis. Ping is a tool, not the truth.

Latency: the trading measurement

In a trading context, latency refers to the RTT of your actual order connection — the TCP session between MT4 and the broker's server. This is what you see in MT4 under Help > About (the ping figure shown there is your actual broker connection RTT, measured via the MT4 protocol, not ICMP). This number is the one that directly affects your fills. A trader with 50ms latency in MT4 is experiencing 50ms of order transit time, which is far more relevant than a ping test showing 45ms (which uses a different protocol). Check ping to broker high for interpretation and remediation.

Jitter: the variance that makes latency unpredictable

Jitter is the standard deviation (or variation) in your latency measurements. If your RTT varies between 20ms and 80ms from one packet to the next, your jitter is high. Even if your average RTT is 50ms, high jitter means your actual fill quality will vary wildly — sometimes you fill cleanly, sometimes you get heavy slippage, and you cannot predict which. This unpredictability is often worse than a stable high latency. A trader with a rock-solid 30ms connection will outfill a trader with a 10–90ms chaotic connection. Jitter is the silent killer of execution consistency. Understanding it is critical for traders who are trying to diagnose why their fills are sometimes excellent and sometimes terrible. See what is trading jitter for deep technical detail.

Which matters most for your trading style

Scalpers and news traders: both matter. Low average latency reduces baseline slippage; low jitter makes that reduction consistent. A scalper with 50ms average + 40ms jitter will suffer terrible fills on every large order because jitter spikes guarantee slippage. Swing traders: neither matters much. If your entries take place over minutes to hours, millisecond timing is irrelevant. Day traders: latency matters for session entries during volatile moments; jitter matters less overall because day trades have longer time horizons and can absorb more noise.

How TradersProxy addresses all three

By routing through a co-located node (same DC as the broker), TradersProxy reduces average latency by 50–90% for traders who are geographically distant from the broker's facility. Co-location also reduces jitter because the route is shorter and more consistent — fewer hops means fewer opportunities for congestion spikes. A trader in Singapore connecting to an NY4 broker might see 150–200ms average with 60ms jitter via direct connection. Via a TradersProxy SG1 node routing to a NY4 broker, the same trader trades locally (5–10ms to SG1) and then the proxy forwards to NY4 over a private, stable link. The result is dramatically improved consistency. See latency by broker for facility-by-facility data.

Execution Quality

Low latency is table stakes. Low jitter is the edge.

TradersProxy nodes at NY4, LD4, TY3, SY4, and SG1 reduce both your baseline RTT and the variation around it — giving your orders a more consistent path to the broker.

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FAQ

For scalpers and news traders, under 20ms RTT to your broker's DC is excellent. Under 50ms is acceptable. Over 100ms starts to affect execution quality in fast markets. For swing traders, 200ms is completely irrelevant.

Under 5ms jitter (standard deviation) is excellent. Under 20ms is workable. Above 50ms jitter means your execution quality will vary significantly from trade to trade, making it hard to diagnose and improve fills consistently.

High jitter. If your average is 20ms but individual packets sometimes take 80ms, those spikes hit your orders. Check jitter by running ping for 60 seconds and looking at the spread between min and max RTT.

MT4 shows average latency. To see jitter, run a 60-second ping test to your broker's hostname (found in Tools > Options > Server). The difference between the minimum and maximum RTT values gives you a rough indication of jitter.

Not always. A stable 30ms connection with 2ms jitter will produce more consistent fills than a 10ms average connection with 40ms jitter. Consistency matters. A calm route is better than a fast but chaotic one.