GBP/USD AI Live Scan, 4-hour chart, Thursday, 17 September 2026
Every read JAFX AI made on the GBP/USD 4-hour chart that day, newest first: trend, structure, the levels it marked and what it said to watch.
21:01 UTC
Downtrend, extending with expanding range · RSI 25 · price 1.33578
Unbroken series of lower highs and lower lows since 1.3675.
Three weeks of stair-step lower highs and lower lows off 1.3675, with the 1.3446 prior low giving way this week and price accelerating into a 1.3336 swing low — the sharpest single-bar impulse of the window came as the 6-3 BoE hold underdelivered against a hawkish Fed hike that put US rates above Bank Rate. Price trades below both EMA20 and EMA50 and ATR(14) has expanded to roughly 29 pips, so this is trend extension rather than compression. The 1.3400 psych level, which capped the last two bounce attempts, is now the immediate overhead reference with 1.3446 the prior low above it.
Support: 1.3336, 1.3300
Resistance: 1.3400, 1.3446, 1.3460
What it said to watch
Sustained H4 closes back above the 1.3400 psych level would be the first break in the lower-high sequence; 1.3446 prior low and the 1.3460 prior cap sit above
Failure to hold the 1.3336 swing low opens the path toward the 1.3300 round number
RSI near 25 with price at window lows — oversold readings can persist in trending conditions, but a higher low above 1.3336 would flag momentum loss
UK Retail Sales Fri 06:00 GMT is the nearest domestic catalyst and could materially shift this read
17:02 UTC
Downtrend, extending · RSI 24 · price 1.33477
Lower highs and lower lows, new window low.
Lower highs and lower lows have run uninterrupted across the window, with the slide from 1.3675 accelerating over the past three sessions: the post-BoE flush — an in-line 6-3 hold that gave hawkish positioning nothing new, set against the hawkish Fed hike — cut through the 1.3445 swing low and printed a new window low at 1.3336. Price sits well below both EMA20 and EMA50 and ATR(14) has expanded to roughly 30 pips, so this is trend extension rather than pre-breakout compression. RSI(14) near 24 shows the leg is stretched, but no higher low has yet formed to interrupt the sequence.
Support: 1.3336, 1.3300
Resistance: 1.3406, 1.3445, 1.3460
What it said to watch
H4 close back above the 1.3406 prior high would be the first evidence the slide is stalling
Reclaiming the 1.3445 swing low and then the 1.3460 capping zone is what it would take to break the lower-high sequence
Failure to hold the 1.3336 window low opens the path to the 1.3300 psych round number
UK Retail Sales Fri 06:00 GMT could materially shift this read
15:21 UTC
Downtrend, extending with expanding range · RSI 29 · price 1.3372
Sequence of lower highs and lower lows; fresh multi-week low.
Unbroken lower-high, lower-low structure since the 1.3675 swing high three weeks ago, with price tracking the lower half of a descending channel and EMA20 holding below EMA50 throughout. The 6-3 BoE hold at 3.75% — fully priced, and now beneath the Fed's 3.75-4.00% — triggered the impulsive break of the 1.3445 broken low and a print at 1.3350, an 89-pip bar that lifted ATR(14) toward 28 pips from the low-20s compression seen earlier in the window. Price sits well below both EMAs with RSI near 29, the most stretched reading in the window.
Support: 1.3350, 1.3300
Resistance: 1.3445, 1.3497, 1.3535
What it said to watch
Failure to hold the 1.3350 post-boe low opens the path toward the 1.3300 round number
An H4 close back above the 1.3445 broken low would break the lower-high sequence and question the channel read
UK Retail Sales Fri 06:00 GMT (MoM f/c -0.2%) and US Industrial Production later that day can materially reshape this structure
Rebounds capped under the 1.3497 swing high keep the descending channel intact; 1.3535 marks the prior range floor above that
13:02 UTC
Downtrend, extending · RSI 27 · price 1.3372
Successive lower highs and lower lows; 1.3442 swing low broken.
GBPUSD has printed an unbroken chain of lower highs and lower lows across the window, with the decline accelerating after the Fed's hawkish hike and an in-line 6-3 BoE hold left Sterling carry-disadvantaged; the 1.3442 swing low gave way in a single wide-range bar down to 1.3372. Price is trading well below both EMA20 and EMA50 with the moving averages fanning lower, and ATR(14) near 29 pips marks an expansion regime rather than compression. The last four bars have coiled between 1.3349 and 1.3406 — a shallow pause inside the impulse rather than a base, with the broken 1.3442 low now the first overhead reference.
Support: 1.3349, 1.3300
Resistance: 1.3406, 1.3442
What it said to watch
Failure to hold 1.3349 confirms continuation toward the 1.3300 round number
H4 close back above the 1.3442 broken low would invalidate the lower-high sequence
UK Retail Sales Friday 06:00 GMT is the only domestic print left this week and could reset this read
RSI near 27 with price ranging under 1.3406 — area to watch for rejection or break
13:02 UTC
Downtrend, extended and accelerating · RSI 26 · price 1.3372
Unbroken lower highs / lower lows since the 1.3675 high.
Three weeks of unbroken lower highs and lower lows: from the 1.3675 swing high price has stair-stepped down through 1.3500 and then 1.3400, with the latest impulse slicing the 1.3446 broken low in a single wide bar as the hawkish Fed hike met an in-line 6-3 BoE hold that gave Sterling nothing fresh. Price is beneath both EMA20 and EMA50 with the pair trading in the low 1.3370s, and ATR(14) near 28 pips has expanded off the mid-window compression — a trend-extension regime rather than a coiling one. RSI(14) near 26 shows the move is stretched, and the 1.3406 prior high now marks the first cap on any rebound.
Support: 1.3350, 1.3300
Resistance: 1.3406, 1.3446, 1.3461
What it said to watch
Failure to hold 1.3350 swing low confirms continuation toward the 1.3300 round number
An H4 close back above the 1.3406 prior high would be the first break of the lower-high sequence; 1.3446 broken low is the next hurdle
UK Retail Sales Friday 06:00 GMT (MoM f/c -0.2%) is the only domestic print left this week and could materially shift this read
RSI(14) near 26 with price making new lows — any higher low forming while RSI holds up would flag divergence
11:48 UTC
Downtrend, extended after impulse · RSI 34 · price 1.3404
Successive lower highs and lower lows; basing above the 1.3372 swing low.
The three-week sequence of lower highs and lower lows accelerated with a 90-pip impulse bar that broke the 1.3442/1.3446 prior low and printed 1.3372, the low of the window. Price has since consolidated in a tight 1.3369–1.3406 band with ATR(14) around 26 pips, still trading beneath both the 1.3435 ema20 and the 1.3497 ema50, and the compression follows a week in which sterling was capped inside 1.3400–1.3500 while a Hormuz-driven dollar bid offset the post-NFP Fed repricing. RSI near 34 has ticked up off its low as price stalled, so downside momentum is flattening rather than reversing.
Support: 1.3372, 1.3342, 1.3300
Resistance: 1.3435, 1.3446, 1.3497
What it said to watch
H4 close back above the 1.3446 prior low would invalidate the breakdown read and put the 1.3497 ema50 back in play
Failure to hold the 1.3372 swing low confirms continuation toward the 1.3342 range floor and the 1.3300 psych level
Reclaim of the 1.3435 ema20 would be the first structural sign the lower-high sequence is stalling
US CPI is the near-term catalyst and could materially shift this read within the next few bars