LiveGexLevels Guide · Episode 2
The Only 2 Real Edges in Options
Play the video · 8:14Two real edges in options, built into how the market works. The first is selling fear: implied volatility has usually sat above the volatility that followed, so selling out-of-the-money puts is paid for taking the crash risk, slowly, with real capital, and it needs protection. The second is reading the dealers' positioning during the session: GEX estimates where their hedging piles up, and the heavy walls are where the price tends to react. Standard GEX levels come from yesterday's open interest; LGL levels follow how the positioning changes during the session. A portfolio can even be built to gain from a crash: it all comes down to managing its curve. An edge is something you prepare for, not a promise: with both, you can lose money.
For information only. Not financial advice or an investment recommendation. Trading involves risk of loss. Risk disclosure ↗︎
Chapters
In brief
- Options have two real edges: selling fear, and reading the dealers during the session. With both you can lose money.
- Selling fear is calm, slow and modest: it takes real capital, and it needs protection against crashes.
- In the very short term, options are priced about right: selling same-day premium leaves about nothing after costs.
- Reading the dealers is fast, asks for attention and lives in the very short term: the levels have to follow the session.
- One edge is paid for by fear, the other by attention.
The article
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Transcript
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The narration of the video, as text.
The question
In options, there are only two real edges. Not two hundred strategies: two advantages built into how the market works. One is slow and calm, and fear pays for it. The other is fast, and attention pays for it. Which is which, and which one is yours?
Welcome
Welcome to the LiveGexLevels guide series: one idea at a time, to read the S&P 500 through options. One note: languages are dubbed automatically, so the voice may sound a bit odd. This is education, not advice: you decide, and you trade with your own broker.
In this episode: the two edges. Where each one comes from, what it costs you, and where LiveGexLevels fits. A word first: an edge is an advantage you can prepare for, not a promise. With both of them, you can lose money.
Selling fear
The first edge comes from fear. Big investors buy puts on the index to protect their portfolios: it's insurance. And like any insurer, whoever sells that protection asks for more than the damage it pays out on average. Options have a volatility built into their price: the implied volatility, the market's estimate of how much the index will move. Then there's the realized volatility: how much it actually moved.
Between 1990 and 2018, the VIX, the implied volatility of the S&P 500, averaged about 19. The volatility that actually followed: about 15. Implied above realized, most of the time. Academic research finds the same thing: options on the index, puts above all, are expensive. So, over time, selling out-of-the-money puts has a known statistical edge. You're being paid to take on the risk of a crash.
And that's the catch. The premium comes in small amounts, and the risk arrives all at once. In March 2020, Cboe's put-selling index on the S&P 500 lost about 29 percent in a single month: back to where it had been four and a half years before. Years of modest gains, gone in a few weeks.
So what can you do? Protect the portfolio, meaning all your positions together, so that what you spend on protection doesn't eat up what you earn. Nothing in options comes for free. But by combining the right strategies, you can build a portfolio that limits the damage of a crash and still collects the edge of selling options.
And there's more: you can avoid blowing up the account in the big crashes, and you can even build a portfolio that gains from them. It all comes down to managing the curve of the portfolio. To build these portfolios and see their curves, we use a risk graph. We'll go through these advanced strategies in coming episodes, so follow the channel.
It's a relatively calm way to trade: the price has to move a lot before it causes trouble. Gains come slowly and steadily, but they're modest, and it takes real capital: selling puts ties up a lot of buying power, even in a well-built portfolio. And one more fact, to be fair: since 2007, Cboe's put-selling index has swung about two thirds as much as the S&P 500, and it has also earned less. Smaller swings, not bigger returns.
In the very short term
Now shrink the clock, to options that expire today or tomorrow. The premium is still in the prices, but once you pay the spread and the costs, there's nothing left to collect. A study of same-day options found them expensive, but not mispriced. Another found that retail traders lost money on them, mostly in costs. In our tests, selling same-day premium came out at about zero. In the very short term, the edge isn't in selling time. It's somewhere else.
Reading the dealers
The second edge: reading the dealers' positioning while the session is running. Every option has a dealer on the other side, who hedges by buying or selling the underlying. GEX estimates where that hedging piles up: the levels, and the heaviest ones, the walls. Research on the S&P 500 finds that when dealers are short gamma, the day's move tends to keep going into the close. When they're long gamma, it doesn't. And on expiry days, prices tend to be drawn toward the big strikes.
In our tests, the heavy walls, from yesterday's open interest and read again during the session, pushed the price back more often than levels picked at random. The light walls didn't. And GEX over weeks or months? It doesn't tell you where the market will go: positions that expire months away have little gamma near today's price, so they weigh little. Gamma says more about how much the market moves than about where. And when fear runs high, the walls count for less.
This edge asks for more: attention, speed, discipline. Moves are quick. It doesn't need a large account, but gains and losses both come fast. And here the options aren't the source of the edge: in the very short term they're priced about right. The edge is in the data: knowing where the dealers are positioned while the session is running, not as they were yesterday. That's what we provide.
The map and the navigator
Why read the market now, and not yesterday? Picture driving to an important meeting with a paper map, printed in advance. The map is still. It doesn't know that this morning a road was closed, that there's a queue on the ring road, that a new lane has just opened. A navigator sees all of it as it happens, and changes your route. Indicators like RSI, MACD, stochastics, Bollinger bands and Fibonacci are built on past prices: they're the paper map. In our tests, Fibonacci and the bands, on their own, did no better than a random level.
And even standard GEX levels can be a paper map. They're computed from open interest, which is published once a day, with yesterday's positions. During the session the price moves, but those positions stay frozen: they don't see what's being opened and closed right now. So yesterday's wall may be gone today, and a new one may have formed where there was nothing. That's why we call our levels LGL, and not just GEX: they follow how the positioning changes during the session.
In brief
In brief: two edges. The first is selling fear: calm, slow and modest, it takes real capital, and it needs protection against crashes. There are tools to build that portfolio. The second is reading the dealers during the session: fast, it asks for attention, and it lives in the very short term. That's what LiveGexLevels is for: LGL levels that follow the session, your navigator for scalping and 0DTE on the US500. So, back to our question: one edge is paid for by fear, the other by attention. Which one is yours?
Up next
Coming up in the guide: the dealers' hedging up close, and why, with positive gamma, levels tend to hold better. Tell us in the comments which edge you trade, and what you'd like us to explain. Before risking real money, practise with paper trading. And the guide is free with our newsletter, on livegexlevels.com.

