When the price of the underlying gold futures contract is $500 per ounce or less, as it is currently, strike prices will be listed $5 apart. When the price is higher than that but $1,000 or less, the strike prices will be $10 apart and, if the price is more than $1,000, the strike prices will be $25 apart.
All further months will continue to to have the following strike price increments listed: $10 apart when the underlying gold futures price is $500 or less; $20 apart if the price is from $501 to $1,000; and $50 apart if the price is more than $1,000.