CHF/JPY recovers to 195.00 by October 30, 2026 in the base case, with 198.20 in the bull case and 186.00 in the bear case, because speculators bought the Bank of Japan’s September hike before it happened and the yen has been sold since the vote.

The base case rests on positioning rather than rates. Non-commercial traders swung 212,586 yen futures contracts from net short to net long in the two weeks to September 15, the largest two-week swing in the Commodity Futures Trading Commission (CFTC) legacy futures-only series back to August 2000. The yen weakened the day the Bank of Japan (BOJ) delivered. Four signals, listed below, would break the call.

Key Levels:

• Asset: Swiss franc/Japanese yen (CHF/JPY) at 191.46 — cross derived from the European Central Bank (ECB) reference rates for September 21, 2026 (EUR/JPY 180.70 ÷ EUR/CHF 0.9438), as republished by the Deutsche Bundesbank
• Base case target: 195.00 by October 30, 2026 — just above the 38.2% retracement (194.64) of the April 21 high to the September 17 low
• Bull case target: 198.20 — the 61.8% retracement, reached if the Swiss National Bank (SNB) holds at 0% on September 24 and the yen long is cut back toward neutral
• Bear case target: 186.00 — reached if the September 17 low gives way on an SNB move below zero or a signalled October BOJ hike
• Major support: 188.83 — the 2026 low on the ECB-derived fix, September 17
• Major resistance: 196.06 — the 50-day moving average of the ECB-derived fix
• Invalidation level: two consecutive ECB-derived fixes below 188.80

Methodology: how this CHF/JPY call was built

All CHF/JPY levels are calculated by dividing the ECB’s daily EUR/JPY reference rate by its EUR/CHF reference rate, using the Bundesbank’s republished ECB series. The sample runs from September 1, 2025 to September 21, 2026, which is 270 fixes. Positioning comes from the CFTC’s public legacy futures-only report, dated September 15, 2026. Policy settings come from the BOJ’s September 18 statement and the SNB’s June 18 assessment. Inflation comes from Japan’s Statistics Bureau and the SNB data portal. There are two caveats. A reference fix is a single 14:10 CET snapshot and will differ from intraday dealing rates. The CFTC data are four trading days old when they are published, so the Friday reports matter to this call.

The data: a pair that fell 3.55% into a hike it had already priced

CHF/JPY fell from 198.50 on August 21 to 188.83 on September 17, the day before the BOJ met. When the BOJ raised its policy rate to 1.25% by a 7-2 vote, the cross rose 1.27% to 191.23 on the next fix. The euro gained 1.2% against the yen on the same day. Traders who had bought the yen before the decision sold it once the hike was confirmed.

Pair / variable	September 21 fix	1-month change	Year to date	Positioning or rate
CHF/JPY	191.46	-3.55%	-3.13%	2026 range 188.83–204.03
EUR/JPY	180.70	-2.67%	-1.84%	JPY net long 120,359 contracts
EUR/CHF	0.9438	+0.91%	+1.33%	CHF net short 28,988 contracts
USD/JPY	157.27	-0.90%	+0.38%	BOJ rate 1.25% from September 24

Sources: ECB reference rates via Deutsche Bundesbank (crosses derived); CFTC legacy futures-only report, September 15, 2026; BOJ statement, September 18, 2026. Time window: December 31, 2025 to September 21, 2026.

A crowded yen long is a futures position in which non-commercial traders hold far more contracts betting on a stronger yen than betting on a weaker one. When the expected catalyst has already passed, that imbalance leaves the currency with more sellers than buyers. The CFTC legacy report shows speculators net short 92,227 yen contracts on September 1, net long 10,796 on September 8 and net long 120,359 on September 15. The swing of 212,586 contracts is the largest two-week move toward yen length in the public series, which begins in August 2000. The record net long in the series is 179,212 contracts, set on April 29, 2025. Traders built most of this position to profit from the hike, and the hike has now happened. For the cross, reducing those longs means selling yen, and that is the mechanism behind a move back toward 195.00. Speculators hold a net short of 28,988 franc contracts, which gives the SNB little reason to fight the market this week.

The inflation data also leave the yen with little real yield. Japan’s August national consumer price index rose 1.9% year on year. Swiss consumer prices rose 0.8% in August, according to the SNB data portal. After the hike, Japan’s real policy rate is about -0.65% and Switzerland’s is about -0.80%. The gap is only 15 basis points.

“when comparing real policy interest rates — that is, the nominal policy interest rate minus the inflation rate — the rate in Japan remains at the lowest level in the world.”

— Takata Hajime, Member of the Policy Board, Bank of Japan (speech in Sapporo, September 2, 2026)

The mechanism: why the yen is sold after the hike

The BOJ gave the yen less support than the market expected. The statement says the Bank “will continue to raise the policy interest rate”, but two members dissented. Asada Toichiro and Sato Ayano both wanted no change. In June, one member dissented. A split that moves toward holding makes a third hike on October 29–30 harder to justify, only six weeks after the second. It also raises the evidence the BOJ will need from the October 1 Tankan business survey before it moves again.

The Swiss side of the pair is anchored. The SNB has kept its policy rate at 0% and says it has “an increased willingness to intervene in the foreign exchange market” to stop the franc from rising too far. That policy makes a franc rally unlikely. The SNB data portal’s August readings put SARON, the Swiss overnight benchmark, at -0.06% and the Tokyo Overnight Average Rate (TONA) at 0.98%. The June conditional forecast shows inflation at 0.6% in 2026 and 0.7% in 2028, assuming a 0% rate throughout the forecast period. Swiss inflation of 0.8% in August is slightly above that path, which weakens the case for a cut below zero on September 24. A hold at 0% leaves CHF/JPY driven mainly by the yen, and the yen is where positioning is stretched. TIS set out the SNB’s reaction function in its USD/CHF call and in the EUR/CHF franc-cap analysis.

The strongest counter-argument is that the BOJ is still raising rates while the SNB is not. The nominal gap moves to 125 basis points in the yen’s favour on September 24. On that view, investors will keep funding in francs and buying yen whatever the positioning data show. This desk’s USD/JPY call for 150 by October 30 took a similar view of the yen. This call disagrees on timing, not on the direction of BOJ policy. Once the real rate gap is taken into account, the nominal advantage is small. A 15-basis-point real gap cannot support a position the size of the September 15 yen long.

What the model misses

Positioning signals give timing, not a price target. In the EUR/JPY carry analysis, this desk noted that yen crosses can trend for months while speculative length stays extreme. The record 179,212-contract long of April 29, 2025 took three months to halve, falling to 89,243 by July 29, 2025. The ECB-derived fixes also leave out Asian-session moves, when yen volatility is highest. The largest gap in the model is the Middle East. The SNB’s June remarks say that escalation “could worsen again” and that the franc is sought as a safe haven. A risk-off shock would lift both currencies, and this framework cannot say which would rise more.

“Interest rates in the major currency areas have since risen, in part because markets expect monetary policy tightening there due to the higher inflation. As the interest rate differentials with other countries have widened, the Swiss franc has depreciated somewhat.”

— Martin Schlegel, Chairman of the Governing Board, Swiss National Bank (introductory remarks, June 18, 2026)

Schlegel’s point is the risk to this call. If the BOJ keeps widening the rate gap, the franc could fall against the yen as it has fallen against the euro. EUR/CHF is up 1.33% this year.

What would invalidate this call

The base case of 195.00 breaks if any one of these four signals fires:

• The SNB cuts below 0% on September 24, or its statement mentions negative rates. A negative rate would turn the franc into a funding currency against the yen as well and move the cross toward the bear case.
• CFTC net yen length rises above 150,000 contracts in the reports due September 25 or October 2. The thesis depends on the long being reduced. Further buying would mean the positioning is new demand for yen, not an overhang.
• The October 1 Summary of Opinions or Tankan points to an October hike. A third increase in five months would restore the yen’s rate advantage before positioning can clear.
• Two consecutive ECB-derived fixes below 188.80. That would break the 2026 low and show that sellers still control the trend.

What to watch next

September 24 is the key date. The SNB publishes its assessment that morning, and the BOJ’s 1.25% rate takes effect the same day, according to the SNB event schedule and the BOJ statement. The CFTC report for September 22 follows on September 25. It is the first to show positions after the hike. On October 1, the BOJ publishes the Summary of Opinions from the September meeting and the September Tankan. The BOJ’s October 29–30 meeting, which includes an Outlook Report, is the deadline for this call. On the chart, 192.99, the 20-day moving average, is the first test. A fix above it would suggest the bounce from 188.83 is continuing.

FAQ

Why would CHF/JPY rise when the BOJ is hiking?

The market expected the hike. Speculators swung their net yen position by more than 212,000 contracts in the two weeks before the September 18 decision, and the yen weakened after the vote. Once an expected event has passed, traders tend to reduce the positions they built for it. For CHF/JPY, that means selling yen, which lifts the cross even though the BOJ has raised rates.

What is the SNB expected to do on September 24?

The SNB kept its policy rate at 0% in June. It said it has an increased willingness to intervene against a rapid appreciation of the franc. August inflation was 0.8%, slightly above the SNB’s June forecast of 0.6% for 2026, which weakens the case for a return to negative rates. This call assumes a hold at 0%.

How is the CHF/JPY rate in this analysis calculated?

It is a cross rate. The ECB’s daily EUR/JPY reference rate is divided by its EUR/CHF reference rate, using the series the Deutsche Bundesbank republishes. On September 21, 2026, that gave 180.70 ÷ 0.9438 = 191.46. Reference rates are daily snapshots and will differ slightly from live dealing prices.

What level would prove the call wrong?

Two consecutive ECB-derived fixes below 188.80 would invalidate the call. That level is just under the September 17 low of 188.83, the lowest fix of 2026. A break would suggest that the yen buying is continuing rather than unwinding. The call would also fail if the SNB cut below zero, or if the BOJ signalled a hike in October.

Where do Swiss and Japanese real interest rates stand?

After the September 24 increase, Japan’s policy rate of 1.25% minus August headline inflation of 1.9% gives a real rate of about -0.65%. Switzerland’s rate of 0% minus inflation of 0.8% gives about -0.80%. The real gap is about 15 basis points, much narrower than the 125-basis-point nominal gap.

This article is informational analysis only and is not financial, investment, or trading advice. Foreign-exchange, commodity, and equity markets are highly volatile and can lose substantial value rapidly. Leveraged products carry total-loss risk and may exceed the initial margin posted. Past performance and historical correlations do not guarantee future results. Do your own research and consult a regulated financial adviser before making any investment decision.