Hmm, well I'm not personally familiar with IB, but that seems like a pretty arbitrary restriction. I would call them and find out, because it is definitely a broker restriction. In the past, I've had to call in orders when a stock is restricted, maybe that is an option. It's weird they would choose Mueller, though. MUEL used to be a fully reporting company.
Also, a dollar spread and volume of a few hundred shares is deceptive if you are used to watching sub dollar stocks like most of us are, but MUEL is actually pretty liquid if you consider the dollar volume and spread percentage. Much of the past few weeks has seen a spread of 32/33 or 33/34, with daily volume in the tens of thousands of dollars. Translate it to pennies, and it would be a spread of .32/.33 with volume of 80,000. Not bad, really. Even a spread of .32/.35 wouldn't be ridiculous.
I hope you have luck on Monday. The IB restriction seems suspect, hopefully you can work through it.
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