Incorrect. The way to corner the market would be to buy up ALL the 561c diodes. Clearly, Robin and stephan or anyone on these forum don't have the resources for that.The classic way to corner a market is to raise prices. It's pretty clear they didn't do that in order to take advantage of demand, so from the standpoint of classic economic theory, they AREN'T monopolists. They were as surprised as anyone at the demand.