GRAL

GRAIL, Inc.

NASDAQ · Common stock

117.81

−17.65 (−13.03%)

Close, Oct 16, 2026

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Structural summary

What is the structure, what changed, and what would invalidate it

Viridia Intelligence

Context across dimensions, not a rating

StructureHigher highs, higher lowsIntermediate-degree swings on the daily chart.

WaveUnresolvedZigzag complete, next move down (Pattern Confidence 60); the weekly count points the other way.

FibonacciNo zoneNo confluence zone near price.

MomentumNot enough historyNeeds 3 months of sessions.

RegimeNot enough historyNeeds 200 sessions.

RiskNot enough historyNeeds a month of sessions.

GRAL setup history4 resolved: 0 reached target first, average −0.17R (small sample)

Current structure

Price, swings and the preferred count on the chart

GRAL · 1DLoading bars…

SourceMassive, end of dayUpdated—MethodDaily bars, split-adjusted

Candidate interpretations

Every count shown passes every hard rule

Candidate interpretations

Ranked by Pattern Confidence

Counts ending at the latest intermediate swing high, 166.48 on Oct 6, 2026. 156 labelings tested, 103 broke a hard rule, 12+ remain.

Hard-rule evidence: why 103 labelings were eliminated

36Wave 2 always retraces less than 100% of wave 1
21Wave 4 always retraces less than 100% of wave 3
18Wave 3 always travels beyond the end of wave 1
12Contracting triangle: C ends short of A's end, D short of B's end, and E short of C's end
6Wave B ends short of the start of wave A (a zigzag is a sharp correction)
5Wave B retraces at least 90% of wave A

Method Every chain of 3–6 alternating pivots ending at the latest confirmed pivot is tested as each pattern; only counts with zero hard-rule failures are kept, then ranked by Pattern Confidence. Rules: rulebook.Engine pivots-1.0.0+rules-1.0.0+candidates-1.0.0+fib-1.0.1+rank-1.1.0+setup-1.0.1, bars to Oct 16, 2026

Fibonacci map

Confluence zones above and below the closeClose 117.81

117.81close

Bar length is the zone's strength (a weighted count of relationships, not a probability). Select a zone to see what forms it.

110.50 – 112.65−5.3% from the close

4 relationships · strength 6.4 · Intermediate degree

112.65ProjectionWave C = 123.6% of wave A · Intermediate · EWF · secondary ratio
110.73ProjectionThrust after the triangle ≈ width of wave A · Intermediate · EWP
110.69RetracementCorrection retraces 38.2% of waves 1–5 · Intermediate · Basics
110.50RetracementWave 4 retraces 50% of wave 3 · Intermediate · EWF · secondary ratio

Method Targets come from the Fibonacci relationships the sources describe for the wave in progress, Elliott trend channels, the prior fourth wave of lesser degree, and 38.2–78.6% retracements of the latest swing. A zone is where two or more independent relationships fall within max(¼ ATR, 0.4%) of each other; strength counts them, weighting primary ratios and higher degrees. It is not a probability.

Evidence

The setup the preferred count implies, and how that kind of setup has done

Setup

Intermediate degree · from the preferred count

No scenario at intermediate degree right now

The target is closer than the stop (reward:risk 0.91 : 1): most of the count's expected move has already happened, so it isn't a setup. Viridia shows nothing rather than a guess.

NoteResearch scenario generated from Viridia's structural model. Not a recommendation.MethodA setup restates the preferred count as a trade: the entry (the close, or the level where the correction in progress most often ends), the stop where the count is wrong (a rule level, or the end of a finished pattern), and the count's own Fibonacci target. Reward:risk is measured from the middle of the entry range. A setup needs reward:risk of at least 1 : 1. It is research output from the wave count, not a recommendation or a forecast.

Engine details

Analysis engine: pivots-1.0.0+rules-1.0.0+candidates-1.0.0+fib-1.0.1+rank-1.1.0+setup-1.0.1
Bars analysed to: Oct 16, 2026
Price history: Automatic, updated nightly
Daily bars: 513 since Sep 30, 2024
Avg volume, 50 days: 1.12M
Dollar volume, 20 days: $193.0M
SEC CIK: 0001699031
Provider symbols: nasdaqtrader: GRAL · massive: GRAL
Listing changes: None since Sep 24, 2026

SourcePrices: Massive (end of day, split-adjusted). Listings: Nasdaq Trader, SECUpdatedOct 19, 2026, 8:00 AM EDTMethodSecurity master, daily snapshot diff

Structure at a glance

Daily chart, as of Oct 16, 2026

Since the count's last pivot (166.48, Oct 6, 2026) price has moved −29.2%, the way the count expects.12 of 12 rule-valid counts expect the current move to be down.Weekly count: zigzag wave C ↑, opposite direction

Close call.The top two counts are within 0 points. Treat the structure as unresolved until one is invalidated.

Preferred count

Zigzag up · complete, next move down ↓

A three-wave zigzag correction up looks complete, so the larger trend would normally resume down.

A-B-C from 16.10, Dec 19, 2024

Pattern Confidence60Medium

4 of 6 checks met

Key levels, preferred count

Reassess+41.3% from close

166.48

The pattern ended here. A move above it means its last wave is still going, so the pattern isn't complete.

Target, next move−37.6% from close

73.54

Move after the correction retraces 61.8% of A–C

Nearest confluence zone−5.3% from close

110.50–112.65

4 Fibonacci relationships meet here.

Alternate count

Flat down · wave C ↓

Price is in wave C of a three-wave flat correction down.

A-B from 63.99, Feb 18, 2025

Pattern Confidence60Medium

1 of 1 checks met

Why this count is preferred · 4 met, 2 not met

Met

Wave B retraces 38.2% to 85.4% of wave A
Wave B retraces under 90% of wave A (deeper B waves fit a flat better)
Wave C travels beyond the end of wave A (a failure is a truncation)
Wave C equals 61.8%, 100% or 123.6% of wave A

Not met

Alternate waves are related by a Fibonacci ratio within 5% (wave 5 to wave 1, C to A, or triangle legs at 61.8%), the more reliable kind of relationship
The count starts at the price extreme of the prior swing (a new trend begins where the old one ended)

MethodPattern Confidence = (guidelines met + 2) ÷ (guidelines measured + 4), from the rulebook's guidelines, Fibonacci tendencies and wave-personality checks (wave 3 speed and volume, wave 5 volume, alternation in time, a start at the prior extreme), alternate waves in Fibonacci ratio, and the rarity of running flats. The alternate is the best-ranked count that tells a different story. It ranks the rule-valid counts against each other; it is not a probability of any outcome.

Structural summary

Viridia Intelligence

Current structure

Candidate interpretations

Candidate interpretations

Fibonacci map

Fibonacci map

Evidence

Setup

Engine details

Structure at a glance

What changed