Of course, they do not always do so, whether for a brief or prolonged period of time. Besides hedging, options are not zero sum in the sense that they provide valuable information about the future to firms, regulators, and investors. For instance, if the call prices of a firm starts rising, you know that investors are optimistic. Over a sufficiently long time horizon it is theoretically impossible to profit from either of these roles, assuming that the models used to price the options written and bought accurately reflect the probability distribution of prices. Alternatively, they are, in effect, the largest loan sharking operation in the world. Regulators can also get a sense whether the market is overheated or not. In either case, anyone going into this market needs to have his eyes open, and understand just how heavily the odds are weighted in favor of the house.
This position represents also requires a fixed future payout, just like a loan. He just makes the spread. This position is a debit trade, it costs money to set up, and you receive money when it is closed. This is because the appreciation potential of the stock is cancelled by the short call, and the risk of loss of money is mitigated by the long put. This position is a credit trade, you receive money when you open it, and have to pay money to close it. He can effectively do this by buying and selling both sets of call and put options. This position represents a fixed future payout, just like a loan. Investors can sense what the market thinks about the company in the future and adjust their expectations accordingly. Firms can factor this information into their operations and expansion plans. Residents zero great return without.
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