tweety, no MM's are involved in setting prices on Pink sheet stocks. They are set by Electronic trading and are based on buy and sell orders that are entered via the investors using many internet trading platforms, or your broker if you do not trade on line. What you see are actual buy and sell orders. If there are no orders then there is a complex computer program that establishes the bid and ask based on recent trading. This is also why there are NO MM's short these stocks as some would have you believe on many of these boards trying to push an MM short squeeze. MM's are far to busy trading millions of shares of IBM, GOOG, AAPL etc. etc. to ever look at these penny stocks. To test this out put in a 5 or 10K order to buy at .0001 above NITE's bid of .0371 and your bid will go to the top. If you own the stock and want to sell put in a sell order .0001 below NITE's bid of .042 and your order will be shown at the top.
These stocks are manipulated by the penny stock newspapers and internet sites. They start buying the stock weeks before they recommend it, then on the day their recommendation comes out they start buying at market to drive the price up and sucker in the lemmings. Then, when they get the price up they begin to bail. After they sell all they have squired they drive the stock down further by shorting it. It's a vicious game and you better be on the right side of trading or you will get burned.
If you are looking for long term growth you better be in a stock that has assets, has current revenue and is growing (that is not just a shell with lots of PR's) such as CAVR.