ING's rates desk put out a short note arguing that Sweden's hotter-than-expected core inflation reading gives the Swedish krona a genuine reason to strengthen against the euro — not a big reason, but a real one. We read the note twice. The interesting part is not the call itself. It is that the note landed during the Asian session, hours before European desks would touch it, and the price action in Tokyo and Singapore showed something the ING framing did not quite capture: the market had already been positioned the other way, and unwinding that took longer than the fundamentals suggested it should.

Let us concede the ING view upfront. Hotter core CPI in Sweden does, on any reasonable model, delay the Riksbank's next cut. A delayed cut relative to a European Central Bank that is already easing widens the short-end yield differential in the krona's favour. A wider differential, all else equal, is SEK-supportive against EUR. That chain is not wrong. It is textbook. It is the sort of framing you would put in a client note on a Wednesday morning in Amsterdam without spending too long defending it, because nobody serious will argue with the direction.

What we want to explain is why the direction being right did not translate into the price action being clean. Because it did not. And the reason it did not is a story about session timing, about the peculiar way Nordic pairs get warehoused overnight in Asia, and about a Riksbank whose reaction function is legible in a way that most G10 central banks' are not — which changes how traders position ahead of prints and, more importantly, how they unwind when they are wrong.

ING's Note Landed in a Session That Was Already Long EUR/SEK

Here is the thing about Nordic crosses during the Asian session that people who trade European pairs from London forget. EUR/SEK is not a natively-Asian pair. It has almost no organic flow between Tokyo open and Singapore lunch. What it has instead is inventory — inventory left over from the previous London and New York sessions, sitting on the books of prime brokers and market-making desks whose Asian night-desks have been given standing instructions to hedge only if a specified band breaks.

That inventory, on the morning ING's note went out, was leaning long EUR/SEK. We know this because the pair had been drifting higher for the previous three sessions on a fairly boring story: Riksbank speakers had been dovish at the margin, the ECB had been signalling that its own easing cycle was baked in, and the interpolated rates market was pricing a Riksbank cut inside the next two meetings with meaningful conviction. Speculative accounts had built euro-long positions against the krona because carry, at that specific moment in the cycle, favoured them.

Then the CPI print came out. Hotter than the survey. Not by a screaming margin, but hotter. And ING's note followed within an hour, framing the print as SEK-supportive.

If you have never watched a Nordic cross move during the Asian session, the first thing to understand is that liquidity is not the same thing as depth. There are prices. The bid-ask is not obscene. You can trade. But the resting book behind the top of book is thin. When ING's note started getting picked up by the aggregators — this is not the same thing as ING's clients acting on the note, this is the note being repackaged and republished through the terminals that Tokyo and Singapore desks actually read — the first move was a flurry of small-clip SEK-buying. Not the fundamental crowd. Prop desks reading the tape. Algorithms trained on ING-labelled headlines.

The pair sold off. Not a lot. But enough that stops sitting above the recent range got clipped, which pulled in more selling, which is when things got interesting. Because the accounts that were structurally long EUR/SEK — the ones with the inventory we described — did not immediately hedge. Their books were built to a different clock. Their risk officers were asleep. The Asian night-desks were doing exactly what they had been told to do, which was to hold the line unless the band broke.

The band did not break. It got tested. So the offer stayed thin, the bid got run, and the price action for about ninety minutes looked like a genuine SEK rally driven by fundamentals. Then Frankfurt walked in.

What Frankfurt saw was a pair that had already moved most of what the fundamentals justified before the fundamentals crowd had actually traded. So Frankfurt did what Frankfurt does — it faded the move partially, arguing (correctly, in our view) that the print was hot but not hot enough to change the Riksbank's terminal rate, only its timing. The pair drifted back. Not all the way. But enough that anyone who chased the initial move in Asia was underwater by London lunch.

This is the behind-the-scenes bit that ING's note, being a fundamentals note, did not address. And why would it. It is not ING's job to explain session microstructure. Their job is to tell their clients what the print means. The job of the desk you actually trade through is to know when that meaning is already priced.

The Riksbank's History Explains Why Core, Not Headline, Moves the Krona

To understand why ING specifically flagged the core reading and not the headline print, you have to go back further than most FX notes ever bother to. The Riksbank has a reaction function that is unusually transparent by G10 standards — which is a genuinely interesting fact and worth stopping on for a paragraph, because it changes how traders position around Swedish data in a way that does not apply to, say, positioning around Norwegian data or Australian data.

The Riksbank publishes its own rate path forecast. Not a dot plot in the American sense. An actual path — the central bank's own projected trajectory for the policy rate, updated at each Monetary Policy Report. This is a Scandinavian tradition. The Norges Bank does the same. The Reserve Bank of New Zealand pioneered the format. What it does, in practice, is give the market a testable benchmark against which every data print gets measured. A hot CPI is not just "hot" in the abstract. It is hot relative to the assumptions embedded in the last published path.

Now, the Riksbank has been explicit — going back years, across multiple Governors, in speeches and in the Monetary Policy Report itself — that its inflation target is measured against a core-adjusted series, specifically the CPIF measure that strips out mortgage interest rate effects. This is not a small technical detail. It is the entire architecture of Swedish monetary policy. Mortgage interest rates in Sweden are a very large component of headline CPI because Swedish households carry variable-rate mortgages at a scale that would surprise anyone whose mental model of housing finance is American. When the Riksbank cuts rates, headline CPI falls almost mechanically because mortgage costs fall. When it raises them, the opposite. Managing to headline CPI would create a feedback loop that undoes the policy transmission. So the Riksbank does not.

Here is where the primary-document cross-reference matters. If you read the Riksbank's Monetary Policy Report from the tightening cycle earlier this decade, and then read the BIS's country-note surveys of Swedish monetary policy from the same period, you find what looks like a contradiction. The Riksbank report says, in effect, that the policy rate path is set to bring CPIF back to two per cent within the forecast horizon. The BIS note, describing the same policy from the outside, characterises the Swedish stance as reactive to a broader inflation basket including services and imports. Both are operative. The way they fit together is that the CPIF is the target, but the Riksbank's judgement about whether CPIF is sustainably at target draws on the wider basket as leading indicators.

Which means — and this is where we come back to the ING note — a hot core print is worth more to the SEK than a hot headline print. Because a hot core print speaks directly to the target variable. It moves the Riksbank's own forecast. It shifts the path. ING flagged core specifically because ING's rates desk understands this architecture better than most.

The implication for the FX market is more subtle than "SEK up on hot core". It is that Swedish data has a signal-to-noise ratio in the FX market that depends on which component surprised. Headline surprises get faded quickly because they are known to be mortgage-noise. Core surprises get held because they are known to move the Riksbank. Traders who have been running Nordic pairs for a decade have this baked in. Traders who are trading SEK for the first time because it is the carry pair of the month do not, which is one reason why moves get overshoot-and-fade around Swedish prints — a genuinely-informed core reaction gets amplified by newer participants who cannot tell core from headline.

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What Tokyo and Singapore Desks Actually Did With the Print

The Asian session reaction to a European data print is a strange creature. It is not the reaction of a fundamentals crowd because the fundamentals crowd is not at their desks. It is not purely algorithmic because the algorithms that trade European data are largely built to sit out the Asian session on Nordic crosses. What you get instead is a mixed handful of desks — some Japanese macro accounts with mandates broad enough to touch European crosses, some Singapore-based multi-strat pods, a handful of prop shops in Hong Kong that trade anything with volatility — reacting to a headline they have been forwarded by their sales coverage at a European bank that woke up early to service the print.

The desks that matter for this specific note — the desks that would have had to warehouse the SEK-buying if they wanted to be long the krona ahead of Frankfurt's open — face a specific problem, which is that end-of-day marks in the Asian session for Nordic pairs are set against a book that will be reopened by a completely different set of hands at London morning. That means the risk officer sitting in Tokyo has to make a call about how much SEK exposure to run into a European open that could easily fade the initial reaction. Most of them, on most days, will run less than the fundamentals would suggest they should. Not because they disagree with the fundamentals. Because the hand-off risk is asymmetric.

This is where the operators that actually make markets in these pairs in Asia — Saxo Bank's APAC desks, the Asian operations of Interactive Brokers, OANDA's Singapore book, IG Group's regional franchises — become part of the story. They provide continuous prices, but the depth they show behind the top-of-book on a Nordic cross during Tokyo hours is a fraction of what the same pair shows during London. A retail-facing broker cannot commit balance-sheet the way a European interbank market-maker can. They quote off the interbank aggregators and pass most of the risk through. Which means, in practice, that the ING note reaching a Singapore-based retail trader through a broker-side news feed hits a market whose price is being made by desks that are structurally reluctant to warehouse a directional move for six hours.

The result is a pair that overshoots on impact, holds while Asian discretionary accounts try to build a position at levels that reflect the informed view, and then partially reverts once European market-makers come in with real balance-sheet. The pattern is not unique to the Swedish krona. You see similar shapes in Norwegian krone reactions to Norges Bank surprises during Asian hours, and in Aussie reactions to New Zealand data. What is specific to SEK is that the Riksbank's transparent forecast architecture makes the fundamental direction of the reaction unusually easy to identify — which paradoxically makes the microstructure noise around the reaction larger, because more marginal participants get pulled in.

The lesson, if there is one, is not that ING was wrong. ING was right. The lesson is that being right about the direction is not the same as being right about the tradable move, and the gap between those two things is where session microstructure lives. If you traded the ING view by buying SEK the moment the note hit your terminal in Singapore, you probably had a bad hour before you had a decent day. If you waited for Frankfurt and bought SEK into the partial retracement, you probably had a decent week. Both trades were consistent with the note. Neither trade was the note.

This piece did not cover the option-market reaction to the Swedish print, which was interesting in its own right and would require its own discussion of skew in EUR/SEK versus EUR/NOK. It did not address how the Norges Bank's own reaction function differs from the Riksbank's, though the two are often lazily conflated. And it did not go into how Chinese yuan managed-float mechanics affect Asian-session liquidity in European crosses on days when the PBOC has been active — which is a genuinely important overlay for anyone trading Nordics from a Singapore book. Each of those is a separate argument, and each of them deserves the space we did not give them here.

FAQ

Why does ING single out core CPI rather than headline CPI when calling the Swedish krona?

The Riksbank targets CPIF, a core-style measure that strips out mortgage-interest effects. Headline CPI in Sweden is contaminated by variable-rate mortgage costs that move mechanically with the policy rate, so managing to headline would create a feedback loop. Core prints speak directly to the target variable. A hot core reading shifts the Riksbank's own published rate path forecast in a way a hot headline reading does not. That is why the rates desk singled it out.

Is EUR/SEK actually tradeable during the Tokyo and Singapore sessions?

Yes, but with caveats. Prices are continuous and the bid-ask is reasonable at top-of-book. Depth behind the top is thin because there is no natural Asian flow in the pair — inventory sits with hedge desks whose Asian night operations are instructed to hold positions inside a defined band. Retail-facing operators such as Saxo Bank APAC, Interactive Brokers Asia, OANDA Asia and IG Group Asia quote off interbank aggregators and pass most of the risk through, which limits how much they will warehouse in a directional move.

Does the Riksbank publish its own rate forecast the way the Fed publishes a dot plot?

It publishes something more specific than the dot plot. The Monetary Policy Report contains an actual projected trajectory for the policy rate — a path, not a distribution — updated at each meeting. The tradition is Scandinavian; Norges Bank does the same, and the Reserve Bank of New Zealand pioneered the format. The practical effect is that every data print gets measured against a testable benchmark the central bank has publicly committed to, which is why Swedish data gets priced with unusual precision.

How reliable is the initial Asian-session reaction to a European data print?

Historically, unreliable as a standalone signal. The Asian reaction reflects a mixed handful of participants — Japanese macro accounts, Singapore multi-strat pods, Hong Kong prop shops — trading against a thin book whose risk officers are reluctant to warehouse directional exposure into a European hand-off. Overshoot on impact and partial retracement once London arrives is the common shape. The reaction tells you the direction the informed crowd will eventually take, but not the level at which it becomes tradable.

Do the ING note and the BIS's characterisation of Swedish monetary policy actually agree?

On close reading, yes, though they emphasise different things. The Riksbank's own Monetary Policy Report describes CPIF as the target variable. BIS country notes describe the Swedish stance as responsive to a broader inflation basket including services and imports. Both are operative because CPIF is the formal target, but the Riksbank's judgement about whether CPIF is sustainably at target draws on the wider basket as leading indicators. A hot core print moves the target directly; a hot services print moves the judgement.

Why do Nordic crosses show larger microstructure noise around data than G3 pairs?

Two reasons compound. First, the fundamental direction is unusually legible because Scandinavian central banks publish transparent rate paths, which pulls in marginal participants who correctly identify the direction. Second, Nordic pairs have thin resting depth outside London hours, so the same volume of directional flow moves price more than it would in EUR/USD or USD/JPY. The combination — clear signal, shallow book — is what generates the overshoot-and-fade pattern that traders who have run these pairs for a decade take for granted.

How does the Chinese yuan managed-float regime affect EUR/SEK liquidity during Asian hours?

Indirectly but meaningfully. On days when the PBOC has been active in the CNY fixing — either through the daily central parity or through state-bank intervention in offshore CNH — Asian session desks running multi-currency books redirect balance-sheet toward the CNY complex and away from peripheral crosses like EUR/SEK. Liquidity in the Nordic pair thins further. This is not visible on the tape as a distinct event, but it is one reason why the same-sized flow moves EUR/SEK differently on different days during the Asian session.