Tick Volume in Spot FX: A Useful Proxy With Real Blind Spots

[Shadow Trader]

Spot forex has no central exchange, so no single consolidated volume figure exists. Most charting platforms show tick volume instead, which counts how many price updates arrived from a broker's feed during each bar.

The reasoning behind it is straightforward. When more participants are quoting and trading, updates tend to arrive faster. Comparisons with futures volume generally show a positive relationship, though the strength varies by pair and session, so no precise reliability figure should be assumed.

The limits deserve attention. Tick counts depend on the liquidity providers behind a specific broker, which means two platforms can print different totals for the same minute. A quote update is also not a trade. A market maker adjusting prices creates ticks without any transaction occurring, and fast algorithmic quote changes around news can inflate counts without reflecting genuine participation.

A more careful approach is to compare readings only against the same instrument, the same broker, and the same time of day. A spike at the London open means little if every London open spikes. Relative questions are more meaningful, such as whether a breakout bar printed unusually low ticks compared with its own recent norm. That can hint at weak follow-through, but it remains a hint, not a trigger.