Some securities out there, such as the SI contract (Silver) versus the YI contract (mini silver), have differing volumes and somewhat different intraday price action. I've noticed that YI is much easier to trade than SI (at least for me). I'm thinking this is because there are almost no market makers in YI since the volume is low, and the leverage works out to basically the same (so who cares to buy mini when you can buy SI). At the same time, YI has plenty of intraday volume to trade a couple of contracts routinely (roughly 3000 daily volume). I was wondering what your thoughts are on this. Is this a secret 'trap'? Is it possible to be a MM in lower volume contracts with a small account? Are these lower volume mini contracts easier places to rip the faces off of non-MM's without getting squashed in the process by the bigger guys?