Identify GC precisely
The COMEX gold future GC represents 100 troy ounces, quoted in USD per troy ounce. A minimum price move of USD 0.10 per ounce equals USD 10 per contract. These figures apply to GC, not to every instrument with gold in its name.
Convert a price move into dollars
A synthetic one-contract GC long moves from an entry of 2,500.00 to an exit of 2,501.20. The USD 1.20 move per ounce is twelve ticks. The result is 12 × 10 = USD 120 before costs; with assumed round-trip costs of USD 5, USD 115 remains.
Keep actual fill prices. A continuous chart can differ from the individual contract traded. The specific contract month and fills determine the trade accounting.
Record events and session context
Record the time, time zone and whether a known event occurred during the holding period. Then compare costs, holding times and price excursions across similar cases. A retrospective explanation such as gold was nervous is of little use without a verifiable timestamp.
Check the month and deadlines separately
GC is a physically deliverable future. Check the deadlines of the actual contract month and your broker’s requirements. A review and position-size calculator do not replace that contract check. Preserve the full month code in the journal.
| Contract | Point value | Tick size | Tick value |
|---|---|---|---|
| GC | 100 | 0.1 | 10 |
Sources and methodology
Sources explain concepts or the respective provider’s product descriptions. Worked examples are original and synthetic. Verify current contract specifications before use.