USD/JPY AI Live Scan, 4-hour chart, Tuesday, 22 September 2026

Every read JAFX AI made on the USD/JPY 4-hour chart that day, newest first: trend, structure, the levels it marked and what it said to watch.

21:03 UTC

Uptrend, momentum flattening · RSI 54 · price 157.388

Higher lows since 152.89; tight range under 158.05.

The H4 has carved a clean sequence of higher lows off the 152.89 capitulation low, with the recovery stalling into 158.05 — the swing high printed after the dovish 7-2 BoJ hike and firm US yields — and price has since spent a dozen bars pinned between the 156.60 range floor and a 157.78 range top. ATR(14) has compressed toward ~48 pips from the near-120-pip bars seen during the mid-window slide, a volatility squeeze inside an intact uptrend with price holding above both EMA20 and EMA50. RSI near 54 reflects the flattening momentum rather than any structural break.

Support: 156.60, 155.33

Resistance: 157.78, 158.05, 159.43

What it said to watch

  • H4 close above 158.05 extends the higher-high sequence toward the 159.43 prior high
  • Loss of the 156.60 range floor would be the first lower low since 152.89 and turn attention to 155.33 swing low
  • US flash PMIs Wed 13:45 GMT are the only high-impact print and could resolve the current compression either way
  • Unscheduled MoF/BoJ intervention headlines remain a gap risk into the upper end of the range

17:02 UTC

Uptrend off the 152.89 low, momentum flattening · RSI 56 · price 157.563

Higher highs and higher lows, now coiling under the 158.05 swing high.

The slide from 160.39 bottomed at 152.89 and price has built a clean higher-low sequence since, reclaiming both EMA20 and the EMA50 near 156.20 — the dovish-toned BoJ hike to 1.25% and wider UST-JGB spreads are the driver behind the recovery leg. The push to 158.05 was rejected and the last ten bars have compressed into a 156.60–157.80 band, with ATR(14) near 47 pips versus the 90-plus pip bars seen during the sell-off. That compression sits directly beneath the 158.05 swing high and the 158.40 cap zone analysts flag as an official-response area.

Support: 156.60, 156.20, 155.53

Resistance: 158.05, 158.40

What it said to watch

  • Sustained H4 close above the 158.05 swing high would extend the higher-high sequence toward the 158.40 cap zone
  • Loss of the 156.60 swing low breaks the higher-low structure and exposes 156.20 ema50 then the 155.53 prior low
  • US flash PMIs Wed 13:45 UTC are the main scheduled risk to this compression range
  • JPY intervention or rate-check headlines have already produced fast reversals from this area

13:02 UTC

Uptrend, momentum flattening · RSI 54 · price 157.16

Higher highs and higher lows off 152.89; tight consolidation under 158.05.

USDJPY has built an unbroken sequence of higher lows since the 152.89 base — 154.83, then 155.53 — and the post-BoJ leg (dovish-leaning 25bp hike to 1.25% against a hawkish Fed path) carried price to a swing high at 158.05 before the reported rate check pushed it back under 157.00. The last ten bars are compressed between 156.57 and 157.77 with EMA20 above EMA50 and price sitting just above both, so the advance is intact but flat. ATR(14) at roughly 50 pips has halved from the impulse phase, a compression regime inside the upper third of the multi-week range.

Support: 156.57, 155.53, 154.83

Resistance: 157.77, 158.05, 159.32

What it said to watch

  • H4 close above 158.05 swing high extends the higher-high sequence toward the 159.32 month high
  • Loss of the 156.57 swing low breaks the compression and puts the 155.53 higher low back in play
  • US S&P Global flash PMIs Wed 13:45 UTC and Fed speakers are the near-term catalysts for this consolidation
  • MoF intervention headlines around 158.00-158.40 would make price action in the upper band erratic

09:02 UTC

Uptrend, momentum flattening · RSI 65 · price 157.709

Higher highs and higher lows off 152.89; tight consolidation under 158.00.

Price carved a base at 152.89 in the middle of the window and has built a clean sequence of higher lows since, with the EMA20 crossing back above the EMA50 as the recovery extended to 158.05. The impulse leg came on Friday's dovish-leaning BoJ hike against a hawkish Fed path, and the last eight bars have coiled into a 40-pip flag between 157.16 and 157.76 — ATR(14) near 52 pips and falling, a compression regime. Prior high at 158.05 is the level capping the advance, tested once and not yet cleared.

Support: 157.16, 156.60

Resistance: 158.05, 159.43

What it said to watch

  • H4 close above the 158.05 prior high would extend the higher-high sequence toward the 159.43 swing high
  • Loss of the 157.16 range low breaks the flag and puts the 156.60 swing low back in play
  • US flash S&P Global PMIs Wednesday 13:45 UTC is the main scheduled catalyst for this compression to resolve
  • Unscheduled MoF/BoJ intervention headlines remain a tail risk that would invalidate the higher-low structure quickly

05:02 UTC

Uptrend, momentum flattening · RSI 63 · price 157.488

Higher highs and higher lows since the 152.89 low; last 8 bars coiling in a tight range under 157.57.

The 160.39-to-152.89 slide has been retraced step by step and price is now pressing the 61.8% fib at 157.52, with EMA20 (156.79) and EMA50 both below spot and a clean sequence of higher lows off 153.25. The dovish BoJ hike to 1.25% drove the spike to the 158.05 swing high before Friday's reported rate check pulled it back under 157.00, since when the market has compressed into a 100-pip range with ATR(14) falling to roughly 55 pips. That compression sits directly beneath the 158.00-159.00 band, the same area flagged as resistance and where intervention headlines historically cluster.

Support: 156.60, 155.33, 153.25

Resistance: 157.52, 158.05, 159.00

What it said to watch

  • H4 close above 158.05 swing high extends the retracement toward the 159.00 psych level
  • Loss of the 156.60 range low would be the first lower low of this leg, with 155.33 swing low next
  • Failure to clear the 157.52 fib 61.8% keeps the consolidation intact
  • Wed 13:45 GMT US S&P Global PMIs (Services f/c 56) are the main scheduled risk to this read; rate-check or intervention headlines near 158-159 remain a non-calendar risk

01:02 UTC

Uptrend, momentum flattening · RSI 64 · price 157.378

Higher highs and higher lows since the 152.886 low, now compressing under 157.53.

Price has built an unbroken sequence of higher lows since the 152.886 swing low — 153.24, 154.83, 155.33, then 156.58 — and the recovery leg peaked at the 158.05 spike high posted after the BoJ's dovish 7-2 hike met the Fed's hawkish dot path. The last seven bars are pinned in a 156.58–157.53 band with ATR(14) near 54 pips, well down from the 120-pip bars seen during the mid-window slide, a compression typical of a flag inside the larger advance. Price holds above both EMA20 and the rising EMA50 near 156.10, so the corrective phase is sideways rather than downward so far.

Support: 156.58, 156.10, 155.33

Resistance: 157.53, 158.05, 159.43

What it said to watch

  • H4 close above the 157.53 range top, then 158.05 spike high, would extend the uptrend toward the 159.43 prior low
  • Loss of the 156.58 range floor and the ema50 at 156.10 would break the higher-low sequence and put 155.33 swing low back in play
  • US S&P Global PMIs Wed 13:45 UTC are the only high-impact data of the week and can resolve the consolidation either way
  • Official rate-check or intervention headlines in the 158–159 zone previously produced a multi-figure snapback within a single bar

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