On Thursday 25 September 2026, the 10am New York cut rolled through the daily FX option expiry book across G10 pairs — as it does every weekday — and by Wednesday night every major sell-side desk had published its standard preview. The format never changes. A table. Three columns. Pair, strike, notional. Sometimes a bold flag next to anything over a billion dollars. We read them. We read them every week. And after a few years of reading enough of them, a pattern becomes impossible to ignore: the note that goes out on Wednesday night is not actually about Thursday's cut. It is about the writer's fear of being wrong by Thursday noon.
What They All Get Wrong
The core error is the one the format itself encourages: three columns, no fourth. Pair. Strike. Notional. A reader in Dubai opens the note at six in the evening local time, scans down a list that calls EUR/USD at 1.1750 a "$1.4 billion expiry", and walks away believing the same thing every other reader walked away believing. That the number matters because it is big.
It does not. Not on its own. A $1.4 billion vanilla expiry that is already pre-hedged by the dealer who wrote it will generate zero directional flow into the cut. The same notional, held short-gamma against a client who refuses to let the dealer trade around it, will generate flow for the entire hour before 10am New York. The preview tells you nothing about which of the two you are looking at. The three-column format cannot tell you — it was never designed to. And yet every note treats the two cases as if they were the same event. They are not even the same shape of event.
The second error compounds the first. Previews that do try to add context almost always add the wrong context. They tell you the strike is "close to spot". They tell you the pair is "near a key level". They decorate the table with language borrowed from technical analysis, which is a different discipline measuring a different thing. Options expiry mechanics are a dealer-hedging question. They are not a chart question. When a sell-side preview tells a beginner that EUR/USD "could gravitate toward 1.1750 given the expiry", it is reaching for the correct intuition — pinning — and attaching it to the wrong evidence. The pin only forms if the dealer community is net long gamma into the strike. If the Street is net short gamma, the same strike repels spot rather than attracts it. One sentence in a preview, two completely opposite outcomes, and no way to tell them apart from the table.
The third error is the quiet one. The one almost nobody flags. Previews are written on Wednesday night for a Thursday 10am New York cut that lands at 6pm Gulf Standard Time. Twenty hours of market open sit between the note hitting your inbox and the cut actually printing. A Tokyo session. A London open. A European morning. Something will move. The preview does not update. The number that mattered on Wednesday night may be irrelevant by Thursday lunch in London. Nobody writes the follow-up because nobody is paid to.
What Is Almost Always Missing
What is missing, almost without exception, is the gamma profile. Not the strike. The gamma. A single number — the dealer community's net exposure to spot moves around that strike — tells you more about the next six hours of price action than the notional ever will. When the Street is long gamma into a cluster, dealers sell rallies and buy dips to stay hedged. That mechanical flow is what creates the pinning behavior that previews love to hint at. When the Street is short gamma, the same mechanical flow runs in the opposite direction — selling into weakness, buying into strength — and spot accelerates away from the strike instead of toward it. Same table. Opposite outcome. The gamma sign is the hinge, and the public preview format has no column for it.
What is also missing is a usable distance threshold. A beginner reading an expiry note in Doha has no instinct for how close is close enough. The honest working number across the desks who actually trade this flow is something like 0.3 percent of spot in major pairs on normal volatility. Inside that band, the expiry will likely matter. Outside of one percent, it almost never does. Between those two bands, you watch and you wait. None of this appears in any preview. The reader is handed a strike and left to decide for themselves whether 1.1750 is close to a spot trading at 1.1810. In EUR/USD that is 60 pips, which is roughly $600 on a standard 100k lot — AED 2,203 at the pegged 3.6725 — a figure that happens to be well inside the band. But the preview did not say so, and the reader was never told how to run the math.
What is almost universally missing from English-language coverage written for a Gulf audience is the local timing frame. The 10am New York cut lands at 6pm GST in the UAE, 7pm in Oman, 5pm in Egypt. For a retail trader using an AvaOptions account at AvaTrade — the one Gulf-accessible broker with a native options platform — the practical implication is that the entire window of expiry flow unfolds during their evening. The hour of concentrated hedging that precedes the cut maps onto 5pm to 6pm Dubai time. The 15 minutes of unwind after the cut maps onto exactly the window a Gulf retail trader is likely to be the most engaged with their platform. Not one preview we have read in the past year flagged this.
And what is completely missing from every single one of them is the honest line that should sit at the top: this note is a map, not a forecast. The market generates these events every weekday. The preview can describe the terrain. It cannot predict the weather.
What I Would Say Instead
If we were writing the 25 September preview ourselves — and the three-column format did not pre-constrain the writing — the note would open with a question rather than a table. Where will dealer hedging cluster between the London close and the 10am New York cut? That is the only question the preview is capable of answering with any honesty. Everything else is dressed-up speculation.
To answer it for a beginner reader in the Gulf, three variables need to appear in that order. First, spot distance. Second, gamma sign. Third, time concentration. Nothing else.
Spot distance is the easy one. If the strike sits inside 0.3 percent of spot at the time you are reading, the expiry is on the board. If it is beyond 1 percent, it is noise. Between those thresholds, the position depends on realized volatility over the next few hours, and that is a judgment call rather than a mechanical rule. A beginner should treat the inside-the-band expiries as the only ones worth watching and ignore the rest, no matter how large the notional headline looks on paper. A $2 billion strike 2 percent away from spot is a $2 billion non-event.
Gamma sign is the hard one, and this is where most retail traders simply have to accept they will be working with a proxy. Sell-side desks have the actual positioning. Retail does not. The usable proxy is the shape of the recent trading range: when spot has been quietly oscillating around a strike with declining realized volatility, the dealer community is almost always long gamma into that strike and the pin behavior is more likely to hold. When spot has been trending through a strike with rising realized volatility, dealers are typically short gamma and the expiry will accelerate rather than anchor. Not a certainty. A prior. Treat it as one.
Time concentration is the one you can see with your own eyes if you watch the tape. Pick any major strike within the band on any Thursday. Watch the pair in the hour before 10am New York — 5pm Dubai, 6pm Doha, 6pm Riyadh. Watch again in the 15 minutes after. The hour before is where the hedging flow prints. The 15 minutes after is where the unwind runs. Learn the two signatures. Six Thursdays of watching will teach you more than six months of reading preview notes.
The practical rule, if you are trading a Gulf-regulated account and reading this at six in the evening local time: treat the preview as a filter, not a signal. Cross out every strike beyond 1 percent of spot. Of the ones that remain, mark the two or three closest. Ignore the rest, no matter how bold the notional. If the pair has been quiet into the cut, lean toward the strike anchoring. If it has been trending, lean toward the strike repelling. Keep position sizes small enough that a 10-pip adverse move — $100 on a standard 100k lot, AED 367 at the dirham peg — is a cost of information rather than a wound. And accept, before you place anything, that the 10am New York cut is a mechanical event in a market that has already moved for twenty hours since the preview was written, and your edge in reading it is smaller than the preview makes it sound.