I was charting GSIK3 but beginning yesterday the volume dropped to nothing so I assumed it had rolled over to the next. I see in the list of available contracts GSIK3 (May), GSIM3 (June), and GSIN3 (July). M seems like the next logical choice, but when I opened it it had like no volume at all. Then I opened N, and its volume for the last two days looked about normal. If this is correct, why would June be skipped and everyone goes to July instead?
tradition and maybe back in the day it had to do with major mine production schedules... silver: march may july sep dec gold: feb april june aug dec
When in doubt, go to the CME site and found the contract w/ the volume. Trade that one. http://www.cmegroup.com/trading/metals/precious/silver.html Even at 3am EST, the July contract clearly has the most volume.