I think you nailed it... investors are still wondering about the 7.5 million they didn't get... will there be another PP next week sort of thing. That's why I think it's important for the company to make it's plan public.
I thought it was a mistake to do the PP when they did... if they would have waited they'd be doing it now at 80 cents if they wanted. MTO is lagging behind it's peers significantly. Look at some of the other smaller gold producers... San Gold's gone from 57 cents to 1.69 over the last 3 months.
You're absolutely right - investors want to know if the company wants more money in terms of a PP - that's what's holding here even with almost 500,000 traded yesterday and bigger volume again this morning.