Orderly Market
  
A market stops being orderly when a situation gets drastically out of hand and it becomes difficult to match buyers with sellers. Prices can go into freefall, like in a stock market crash. Or they start skyrocketing, like in those situations where you suddenly need to stock up on water before the hurricane comes.
You own shares in a high-flying tech stock specializing in the development of self-driving cars. It turns out that the CEO of the firm was secretly murdering people and using their blood to fuel its vehicles. When news breaks, the stock plummets. The market for those shares cease being orderly.
On the other side of the spectrum, you have an orderly market. It's one where buyers and sellers find each other without much drama. Prices may fluctuate, but everything takes place in a calm and reasonable way. You know, a normal trip to the grocery store, or your average day on Wall Street.