Frozen quotes: the chart that stopped breathing

[Fairman]

Frozen quotes: the chart that stopped breathing

The price on screen stops moving for a second or two while the real market keeps going. A hiccup in the feed, a flaky connection, or a platform freeze looks identical on the chart: a flat line where ticks should be.

Orders sent during a stall fill against the stale price, or get rejected when the feed catches up. In the first case the fill looks wonderful until it is cancelled or adjusted. In the second the order simply vanishes.

Watching the tick counter or a clock next to the chart makes stalls obvious. A quote that has not changed in three seconds on a normally active pair is suspicious.

A half-second glance at the last tick time before clicking prevents a surprising number of odd trades.

The stall is not always in the broker's feed. Several things cause it:

A congested home network where packets queue up for a moment.

A browser tab or download eating bandwidth in the background.

A platform thread blocked by a heavy indicator recalculating.

A VPS short on CPU while the host balances other tenants.

The broker's server swapping to a backup path.

Each has a different fix, and telling them apart takes some patience. A second platform running on a different device is a useful comparison. If both freeze, the broker is the likely cause. If only one freezes, the problem is local.

A simple routine pays off. Put a small clock widget next to the chart showing the time since the last tick. Anything above two seconds on a major pair during a liquid session deserves attention, and anything above five means no new order should go out until the feed is back.

Another useful check is comparing the platform's tick time with a trusted time source. If the platform is consistently several hundred milliseconds behind, the quotes are older than they look, and a scalper working at one or two pips is trading on stale information all day without knowing it.

Has a feed stall ever coincided with an order that filled somewhere odd, and how long did it take to realise the cause?

Does the platform show tick timing, and has a stall ever led to a strange fill?