If you are looking to buy or sell your position, it is valuable because you see where the price levels are. Now, if your position is going against you, you would probably, just hit the bid price and exit. The stockchart should dictate where you get in or get out. Market makers can widen the spread between bid and ask and if you see they are so wide to get your order filled, cancel your order. When the market makers bring down the share prices by continuously, bidding the prices down, they will bid it higher the next day to sell those same shares or contracts in case of options! Just wait the next day if you do not need to get out in a hurry!
Here is a good example of market maker tricks. Look at the option chain for BX Nov 16 2018 $36 Put. Bid is at $2.38, Asked is at $5.25. Open interest is 517 contracts. Only 1 contract has sold for $3.15 today. Market maker has been low balling and trying to force the option premium lower. BX has been going down in price.
