Contract Unit 5,000 troy ounces
Minimum Price Fluctuation 0.001 per troy ounce = $5.00
Price Quotation U.S. dollars and cents per troy ounce
Trading Hours Sunday - Friday 6:00 p.m. - 5:00 p.m. (5:00 p.m. - 4:00 p.m. CT) with a 60-minute break each day beginning at 5:00 p.m. (4:00 p.m. CT)
Product Code CME Globex: SO1,SO2,SO3,SO4,SO5
CME ClearPort: SO1,SO2,SO3,SO4,SO5
Clearing: SO1,SO2,SO3,SO4,SO5
Listed Contracts Weekly contracts listed for 4 consecutive weeks.
No weekly contract listed if it would expire the business day after the expiration of the monthly option.
Termination Of Trading Trading terminates on Friday of the contract week. If Friday is not a business day, trading terminates on the first business day prior to Friday. If the business day immediately preceding the Friday is a Silver monthly option expiration, the weekly option shall not be listed. 
Position Limits COMEX Position Limits
Exchange Rulebook COMEX 1009
Block Minimum Block Minimum Thresholds
Price Limit Or Circuit Price Limits
Vendor Codes Quote Vendor Symbols Listing
Strike Price Listing Procedures Strike Price Listing and Exercise Procedures Table
Exercise Style American
Settlement Method Deliverable
Underlying Silver Futures