USD/JPY AI Live Scan, 4-hour chart, Thursday, 15 October 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.

21:02 UTC

Sideways, volatility compressing · RSI 49 · price 158.095

Two-week range 157.50–158.95, higher lows under flat highs.

USDJPY has spent two weeks inside a 157.50–158.95 range. Supply capped the 158.95 area on Oct 14, a second rejection below the 159.03 late-September high, while higher lows since the 156.38 swing low keep the floor rising. The pullback from the range top held at the 157.55 range floor, between the 50% and 61.8% retracement of the 156.38–158.95 advance, as falling US yields outweighed hot PPI. ATR(14) near 40 pips is well below late-September readings, and price sits just under flat, converged EMA20/EMA50.

Support: 157.55, 156.40

Resistance: 158.50, 158.95

What it said to watch

  • H4 close below the 157.55 range floor breaks the higher-low sequence and confirms a double top near 159.00, exposing the 156.40 swing low
  • H4 close above the 158.95 double top ends the range read; Tokyo intervention warnings near 159.00 have so far capped the area
  • Reclaiming the 158.50 mid-range, which capped price repeatedly in early October, would also put price back above the flat EMAs
  • Fed Chair Warsh (Fri 03:30 UTC) is the key catalyst for US yields and could break the compression in either direction

19:14 UTC

Sideways, range-bound below 159.00 · RSI 49 · price 158.147

157.50–159.00 range with rising lows, lower high at 158.95.

USD/JPY has held a 157.50–159.00 range for two weeks. The CPI-driven spike to 158.95 was rejected just shy of the 159.03 range top, and price fell back to the 157.55 range floor as US yields retreated, while MoF intervention warnings capped the topside. Lows have risen steadily since 156.38, with the floor holding three times. Price now sits at 158.15, flat against EMA20 and EMA50, with ATR(14) near 38 pips in a compressed regime and the rebound stalling beneath the 158.50 pivot cap.

Support: 157.55, 156.95

Resistance: 158.50, 159.00

What it said to watch

  • H4 close below the 157.50 range floor breaks the rising lows and exposes the 156.95 swing low
  • Recovery through the 158.50 pivot cap reopens the 158.95–159.03 range top, where intervention warnings have capped price
  • Fed's Hammack (20:30 UTC) and Fed Chair Warsh (Fri 03:30 UTC, ~8h) could materially shift the yield-driven read
  • A second failure below 159.00 range top would leave a lower high in place against 159.03

17:02 UTC

Sideways, higher lows within a range · RSI 53 · price 158.208

157.50–159.00 range since late-Sep, higher lows off 156.38.

USDJPY has held a 157.50–159.00 range for three weeks since the 159.03 high, with higher lows off the 156.38 sep low and the swing low at 156.95. The latest push failed again below the range top at 158.95 as US yields retreated and Tokyo's intervention warnings capped the topside. Price then pulled back to the range low at 157.55 near the 50% retracement and is recovering to 158.21. Flat, converged EMA20/EMA50 and ATR(14) near 40 pips point to compression rather than trend.

Support: 157.55, 156.95, 156.38

Resistance: 158.50, 159.00

What it said to watch

  • H4 close below 157.55 range low would break the higher-low trendline and expose the 156.95 swing low
  • Sustained trade above the 158.50 prior highs puts the 159.00 range top and intervention-warning zone back in play
  • Fed Chair Warsh speaks 03:30 UTC Fri; a hawkish read on hot CPI/PPI could re-test the range top, while a patient tone could pressure the range low

13:02 UTC

Sideways, higher lows within a capped range · RSI 45 · price 157.936

157.50–159.00 range since late Sept, higher lows off 156.38, price near range floor.

USD/JPY has held a 157.50–159.00 range for three weeks, with higher lows stepping up from 156.38 to the 157.58 range floor. The hot-CPI spike to 158.95 stalled just under the 159.00 range top, where intervention warnings sit, and was fully reversed as UST yields slid. Price is now pinned at the 38.2% fib near 157.96, below the ema20 around 158.20 and the EMA50. ATR(14) is near 38 pips, compressed against the late-September swings.

Support: 157.58, 156.95

Resistance: 158.20, 158.50, 159.00

What it said to watch

  • H4 close below the 157.58 range floor and the higher-lows trendline opens the 156.95 swing low
  • Recovery above the 158.50 prior high puts the 159.00 range top back in play
  • Hot PPI beat (6.3% vs 5.3%) and Hammack at 20:30 UTC could lift yields and test the ema20
  • Warsh speech Fri 03:30 UTC could materially shift this read
  • MoF intervention rhetoric has capped follow-through near the 159.00 range top

09:02 UTC

Range-bound, rolling off the top · RSI 42 · price 157.839

Higher lows since early Oct under a flat 159.00 cap; price back below both EMAs.

USDJPY was rejected again at the 159.00 range top. The 158.95 swing high failed just under the late-September 159.03 peak as the hot-CPI dollar rally faded on retreating yields and hawkish BoJ commentary. Price has slipped back below the EMA20 near 158.27 and the EMA50 and now sits on the higher-low trendline from the Oct 2 low, with the 157.58 swing low the immediate floor. ATR(14) has compressed to about 37 pips from 50-60 in late September, leaving a rising-lows-under-flat-highs coil whose base is now being tested.

Support: 157.58, 156.95, 156.38

Resistance: 158.27, 158.95, 159.03

What it said to watch

  • H4 close below the 157.58 swing low and the 157.50 range floor breaks the higher-low sequence and exposes the Oct 2 low at 156.95, then the sep low at 156.38
  • Reclaim of the ema20 near 158.27 would put price back in the 61.8% fib zone around 158.42 and restore the coil toward the 158.95 swing high
  • Repeat test of 159.00–159.03 range top meets prior rejection and MoF intervention rhetoric
  • US Retail Sales / PPI / claims bundle at 12:30 GMT (~3.5h) could materially shift this read
  • Fed Chair Warsh speech Friday is the next event risk for the yields-driven move

05:02 UTC

Range-bound, momentum rolling over · RSI 38 · price 157.666

157.50–159.00 range; higher-low sequence since 156.38 broken.

USDJPY has spent two weeks inside a 157.50–159.00 range. The latest push stalled at the range top near 158.95, just shy of the 159.03 sept peak, after the hot-CPI spike in US yields reversed and intervention risk capped the topside. Three bearish H4 bars have since pushed price back below the ema cluster around 158.20 and through the 157.83 higher low, toward the range floor and under the 61.8% of the 156.95–158.95 pullback fib. ATR(14) near 37 pips is moderate, well below the expansion seen earlier in the window.

Support: 157.50, 156.95, 156.38

Resistance: 158.20, 158.95, 159.03

What it said to watch

  • H4 close below the 157.50 range floor would open the 156.95 swing low, then the 156.38 prior low
  • Recovery back above the 158.20 ema cluster returns price to mid-range and neutralises the pullback
  • EMA20 is converging on EMA50; a bearish ema cross would confirm the momentum shift
  • US PPI and retail sales at 12:30 UTC (~7.7h) could materially shift this read
  • Renewed approach to the 158.95 range top and 159.03 sept peak brings Japan intervention rhetoric back into play

01:02 UTC

Sideways range, rising lows under 159 cap · RSI 41 · price 157.917

Higher lows since 156.38 compressing beneath the 159.03 range top.

USDJPY has held a 157.50–159.03 range for two weeks. Successive higher lows since 156.38 have pressed price toward the range top, while ATR(14) contracted to about 35 pips. The hot US core CPI spike to 158.95 was rejected below the range top and has fully reversed as Treasury yields turned. Price is now back at the 50% retracement of the impulse from the 156.95 impulse low, below both EMAs, and testing the rising-lows line and the 157.85 swing low.

Support: 157.85, 157.50, 156.95

Resistance: 158.18, 158.50, 159.03

What it said to watch

  • H4 close below the 157.85 swing low breaks the rising-lows trendline and opens the 157.50 range floor
  • Failure to hold the 157.50 range floor exposes the 156.95 impulse low
  • Recovery above the 38.2% fib at 158.18 and the 158.50 prior highs restores the range-top test
  • 159.03 range top coincides with peak intervention sensitivity; a close above it would mark a range break
  • BoJ Koeda speech at 01:30 UTC and Thursday 12:30 UTC US PPI/retail sales could materially shift this read
  • EMA20 still sits above EMA50; a bearish ema cross would confirm the momentum fade

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