Like the market in general, options are correctly priced the majority of the time which means and you will neither win nor lose over the long run.. but you will certainly suffer trading costs and taxes.
And that is what I find so fascinating about options.
Lets assume for a moment that efficient market hypothesis is correct, in that all stocks are correctly priced and fully incorporate all available news (a position I would assume 99% of visitors to this site would agree with). Options aren't directly priced based on the value of the underlying. The price of the underlying is a component to finding the option's value. They're priced based on the projected
change in the underlying over a given period of time. An option is essentially a bet that an underlying will or will not increase/decrease by a set amount over a set period of time. So an underlying could be properly priced, but an option isn't necessarily by virtue of the fact that the underlying is properly priced, as it's a projection of future events that is difficult if not impossible to price into the value of the option.
To come to that projection of future events, you need to assume the stock's volatility moving forward, or how much the stock could move over a given period of time. No one can predict the volatility of a stock moving forward. So instead they make a guess, it's Implied Volatility. Now right there should give you some level of indication on where this is going. Option prices are fixed based on guesses moving forward, and no one should be able to accurately predict the future. If the Implied Volatility is accurate (assuming all other pricing components are as well), the option is fairly priced. If the guess as to future volatility is incorrect, the option is poorly priced. Implied Volatility though relies on the psychology of the traders of the market, and fear is a controlling factor when placing trades. Fear that something bad will happen, but not so bad as to stop you from trading. Study after study has shown that Implied Volatility is over estimated and inflated compared to realized volatility. Meaning, according to current option pricing models, the options typically aren't properly valued. If you believe the studies, the options aren't always accurately priced. If you don't believe the studies, the current pricing models should show the true current value of an option, and you could very easily run a BS model on an option and find a dozen discrepancies with currently traded options every hour. If that's what you believe, you can buy the underpriced ones and sell the overpriced ones, and if the implied volatility is accurate (in that all available information is built into the option price) you should be able to make a quick and easy buck. And that's exactly what the founders of the BS model did, and the fund went belly up, because BS models do not accurately predict the value of the option. Why? Probably because implied volatility is overstated. But that's a guess.
But, for the sake of argument, lets assume that the option also follows the efficient market hypothesis, and is correctly priced today. Now, lets also assume Random Walk applies to pricing movements over time (again, something 99% of visitors of this site should agree with), in that a stock (and therefore the option) moves randomly, just like a coin toss. No one can predict what tomorrow will bring, either a heads or a tails, a gain or a loss. But progressive coin tosses will line up with an even bell curve distribution over time, giving you a good idea of probabilities. That's exactly how options are priced. They assume a random walk (with drift equal to its implied volatility), and place the distribution of probable events on a bell curve and price it based on standard deviation projected moves. If the stock, and therefore the option, moved randomly (at least indexes) according to its implied volatility, their price movements would fall on the bell curve and they would be accurately priced. And if you believe in efficient market hypothesis and random walk, options are literally perfect for you. It will literally give you a statistical probability that you'll make or lose money.
But the actual daily movements of indexes don't fall on a bell curve. The graph of the daily movements show a bell curve that suffers from skew and kurtosis. There are SIGNIFICANTLY more 1 standard deviation daily moves, and significantly more 5+ standard deviation moves, with significantly less moves in between. Natenburg's Option Volatility & Pricing has a fantastic chart on this, if you're interested, showing more days with small moves than the standard deviation predicts, less days with intermediate moves, and more days with big moves, in both directions. Taleb also shows similar results. From 1916-2003, if the DJA followed a bell curve of daily moves, you would see 58 days where the index moved 3.4% or more, when in reality you saw 1,001 occurrences. It would take 300,000 years (1 in 50 billion odds) of watching the stock market to find a day with a move of 7% or more, something no one reading this should have ever experienced once, let alone more than once, when in reality we had 48 of those occurrences in the past 100 years (4 in the last year).
So the bell curve doesn't fit option pricing. And yet, it is still used to price options. If it's wrong, why is it used to place a value on options? I don't know the answer, but I believe its because current pricing models and current statistics fit "close enough" and no one can figure out a more accurate pricing structure.
Now what does all of this really mean? The indexes do not follow a purely random walk, as it's movements are both more probable (more 1 standard deviation moves than statistics say should occur) and less probable (more 5+ standard deviation moves) than statistics would allow. And yet, the movement is not predictable. So it's random, but not random. What in the world?
I'm not smart enough to figure that out. But I am smart enough to realize that, on a daily basis, small moves in the index are under estimated, intermediate moves in the index are overestimated, and large moves in the index are under estimated. And skew exists. So buying ATM or near the money calls, selling 30-5 delta calls/puts, and buying far OTM options, over the long haul, could be worthwhile, as they aren't accurately priced based on information provided. Now whether they really are a series of viable strategies is up to you, and your stomach for volatility and potential draw downs.