Draft — These backtests have not yet been independently verified. Do not trade based on this data.
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Study — The GG Chop Zone

After the Golden Gate completes,
the first bar is everything.

Price reaches the 61.8% ATR midrange — the Golden Gate completion line. What happens next? 78% of the time, it can't even hold for one bar. But survive 10 minutes and it's a coin flip. Survive an hour and continuation wins 2:1.

After a Golden Gate completes at 61.8% ATR, price enters a decision zone: the chop zone between the midrange (61.8%) and the next ATR level (78.6%). Price either pushes through to 78.6% (continuation) or falls back below 61.8% (reversal). We tracked every resolution across 25 years.

Bullish ATR Levels (upside)
78.6%
Next ATR Level
Continuation target
CHOP
The Chop Zone
Decision area
61.8%
Midrange — GG Completion
Price arrived here
38.2%
Golden Gate Entry
4,313
GG completions
25 years of SPY
70%
Reverse back
below 61.8%
29%
Continue through
to 78.6%

Every GG completion falls into one of four outcomes: instant continuation (blew right through 61.8% to 78.6% in the same bar), continuation (held the zone, then broke through), reversal (fell back below 61.8%), or end-of-day in chop (still between levels at close).

Resolution Breakdown
All 4,313 GG completions — bullish and bearish
Bullish (n=2,192)
17.7%
23.0%
56.2%
3.0%
Bearish (n=2,121)
23.6%
23.1%
51.2%
2.0%
Instant Continuation
Continuation (after chop)
Reversal
EOD in chop

Bearish GG completions push through to 78.6% more often than bullish: 46.7% total continuation vs 40.7% bullish. Selling pressure is more decisive at the midrange.

71% of all chop events resolve on the very next 10-minute bar after the GG completes. Price tags 61.8% and either instantly fails or instantly pushes through. This "tag and decide" pattern dominates everything.

Instant Exit (0 bars)
Resolved on the next bar
78.3%
Reversal rate
Events2,446
Continuation21.7%
Survived 1+ Bars
Held 61.8% for at least 10 min
48.9%
Reversal rate
Events978
Continuation51.1%

Holding 61.8% for just one 10-minute bar cuts the reversal rate from 78% to 49%. That first close above the midrange is the single most important data point for whether the move continues.

The longer price holds above 61.8%, the more continuation is favored. There is no "time in chop" threshold that guarantees reversal. The opposite is true — extended chop is a consolidation signal, not exhaustion.

Reversal Rate by Chop Duration
Among events that chopped for at least N bars — what % eventually reversed? (Resolved events only)
012345681012
Bars in chop zone (each bar = 10 minutes)
Chop Duration Detail
Per-bar resolution breakdown (combined bull + bear)
DurationnContRevRev %Cont %≥N Rev %
0 bars (instant)2,4465141,85978.3%21.7%70.0%
1 bar (10 min)52324925450.5%49.5%48.9%
2 bars (20 min)2061099145.5%54.5%47.0%
3 bars (30 min)88434249.4%50.6%48.3%
4–5 bars (40–50 min)91404754.0%46.0%46.4%
6–8 bars (1–1.3 hr)45291635.6%64.4%42.2%
9–12 bars (1.5–2 hr)168746.7%53.3%50.0%
13+ bars (2+ hr)94450.0%50.0%

At 6–8 bars (60–80 minutes) of chop, continuation is favored 64% to 36%. If price has been consolidating above 61.8% for an hour, the probability has flipped — it's more likely building for the next leg up than exhausting.

Bullish completions are more reversal-prone at every chop duration. The 0-bar reversal rate is 82% bullish vs 75% bearish. Bears push through the midrange with more force.

Reversal Rate by Chop Duration — Bull vs Bear
Resolved events only (excluding EOD)
DurationBullishBearish
nRev %nRev %
0 bars (instant)1,20182.1%1,24574.8%
1 bar (10 min)28551.6%23849.1%
2 bars (20 min)13145.7%7545.2%
3 bars (30 min)6147.5%2753.8%
4–5 bars6950.8%2263.6%
6–8 bars3438.2%1127.3%

By the 6–8 bar mark, both directions favor continuation — but the sample sizes are smaller for bearish because bear moves resolve faster. The median bearish chop is 0 bars (instant exit) vs 0 bars for bullish too, but bearish has a tighter distribution.

Late-day GG completions reverse more — there isn't enough time left for a second push through. Bullish completions after noon have 80%+ reversal rates.

Reversal Rate by GG Completion Hour
Among resolved chop events
HourBullishBearish
nRev %nRev %
09:0053762.0%42367.1%
10:0040272.6%38666.6%
11:0021470.6%20769.6%
12:0015481.2%12772.4%
13:0013281.7%13873.9%
14:0016170.0%15073.3%
15:0020480.7%18966.7%

Bullish GG completions between 12pm and 1pm are the most reversal-prone: 81–82%. If the GG completes during the midday lull, odds strongly favor a pullback. The 9am hour is the best for continuation (62% reversal = 38% continuation).

The PO at the moment of GG completion tells you how much momentum is left. A hotter PO means more continuation — the move still has gas.

Bullish GG — PO Zone at Completion vs Outcome
Resolved events only
PO < 23.6
Neutral
26.5%
73.5%
n=156
PO 23.6–61.8
Neutral Up
25.2%
74.8%
n=751
PO 61.8–100
Distribution
30.7%
69.3%
n=699
PO > 100
Extended Up
40.0%
60.0%
n=187
Continuation
Reversal

When PO is extended (>100) at GG completion, continuation rises to 40% — the best rate. When PO is in neutral territory (<23.6), reversal is 73–75%. Momentum matters: if the PO has conviction, the move is more likely to follow through.

Here's the good news for bulls: most reversals are temporary.

81.8%
Of reversals recover
back to 61.8% same day

After falling back below 61.8%, price recovers back to the midrange 82% of the time before close. The "tag and fail" is often just a brief shakeout before a second attempt. The implications: a reversal from the chop zone isn't necessarily the end — it may be a re-entry opportunity.

1
Watch the first bar after GG completion
If the close on the next 10m bar is below 61.8%, that's a 78% reversal. Don't fight it — the tag failed.
2
If price holds 61.8% for one bar, it's a coin flip
Reversal rate drops to 49%. The hold itself is the signal. Be patient and let the next bars tell you.
3
60+ minutes in chop = continuation favored
At 6–8 bars of consolidation, 64% continue to 78.6%. Extended chop is building energy, not exhausting it.
4
Midday completions reverse the most
Bullish GG completions at 12pm–1pm reverse 81–82% of the time. Morning completions (9am) are the strongest for continuation.
5
Reversals are usually temporary
82% of reversals see price come back to 61.8% before close. The "tag and fail" is often a shakeout before a second attempt.
Golden Gate Subway Stats →
When do Golden Gates fire and complete? Timing is everything.
The Bilbo Golden Gate →
PO-confirmed triggers complete faster and more often.