Both short term (days) and medium term (weeks). Enough liquidity for hundreds of contracts. I think the hard limit for spec trader is 2,000 contracts.
2K seem to be very low for 200 K oi on canola ? I would bet that some operators have much more than 2K. How do they know if its spec trading or hedgind ?
No, it is not like soybean complex. It is influenced heavily by Canadian dollar and other oil markets....