Data misconceptions

Volume#

The volume on a forex bar is usually a count of price updates, not an amount traded. Every series says which kind it holds: tick volume or traded volume. A strategy that treats tick volume as money changing hands is measuring the broker's feed.

Bid, ask and mid#

Bars are built from one price side. Broker-quoted markets use the bid by default, and exchange markets use the last traded price. A feed with a single price, such as the Deriv public feed, is marked as such. A bar built from the ask is a different bar.

Time zones#

Every time inside Forge is UTC. A chart on a broker terminal shows server time, and a file can carry any of several clocks. See broker time and the trading day.

Gaps#

A missing minute is a missing row. Forge does not fill it, and a bar made with no real price in it can never be filled against. Across a weekend or a holiday a bar can continue its grid or reset it, and the series says which.