NYBOT versus NYMEX

Is this action going on OTC?

Because I thought ICE published volume details on all exchange-traded instruments.

This is what I've been looking at:

https://www.theice.com/marketdata/reports/ReportCenter.shtml?reportId=35&productId=253&hubId=404

Based on trading volume looks like "ECX EUA" is the only other thing, beyond crude/gasoil, worth trading.

 

Exchange fees, exchange rules, position limits for example.

 

It is labeled "OTC" . Most bulk fin power is cleared and trades on the exchange though.