EUV

Corgi Lithography & Semiconductor Photonics ETF

Cboe BZX · ETF

21.29

−1.03 (−4.61%)

Close, Oct 16, 2026

Watch

Structural summary

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

Viridia Intelligence

Context across dimensions, not a rating

StructureContracting rangeIntermediate-degree swings on the daily chart.

WaveDefensiveZigzag complete, next move down (Pattern Confidence 50); the weekly count points the other way.

FibonacciAt a zoneNearest confluence 20.61–21.05 (3 relationships), −2.2% from the close.

MomentumWeak3 months −12.3% (behind SPY by 15.1 points).

RegimeNot enough historyNeeds 200 sessions.

RiskNormal20-day volatility 44% vs 63% over the year; 1-year drawdown −35.3%; beta 3.27.

EUV setup historyNot replayed yet; the track record fills in most-traded securities first.

Current structure

Price, swings and the preferred count on the chart

EUV · 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, 27.25 on Oct 6, 2026. 20 labelings tested, 13 broke a hard rule, 7 remain.

Hard-rule evidence: why 13 labelings were eliminated

6Wave 3 always travels beyond the end of wave 1
3Wave 2 always retraces less than 100% of wave 1
2Wave B retraces at least 90% of wave A
2Price after the last labeled point has not crossed a rule-based invalidation level

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 21.29

21.29close

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

20.61 – 21.05−2.2% from the close

3 relationships · strength 4.2 · Intermediate, Minor degrees

21.05ProjectionWave C = 100% of wave A · Intermediate · Essentials
20.72ProjectionThrust after the triangle ≈ width of wave A · Minor · EWP
20.61RetracementMove after the correction retraces 100% of A–C · Intermediate · Viridia · 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 0.11 : 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: 114 since May 6, 2026
Avg volume, 50 days: 739.9K
Dollar volume, 20 days: $20.7M
SEC CIK: Not matched
Provider symbols: nasdaqtrader: EUV · massive: EUV
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

MethodStructure: the intermediate-degree swing structure (higher highs and lows, lower highs and lows, expanding or contracting). Wave: the preferred daily wave count's expected direction (constructive up, defensive down), unresolved when the alternate is within 5 points. Fibonacci: the nearest confluence zone of Fibonacci relationships and the distance to it (inside, or within 3%, counts as at a zone). Regime: price against its 50- and 200-day averages. Momentum: 3-month return and its lead over SPY (strong when both are positive and the lead is over 5 points; weak when both are negative). Risk: 20-day volatility against the 1-year level (elevated above 1.25×), and the 1-year drawdown and beta to SPY.

Structure at a glance

Daily chart, as of Oct 16, 2026

Since the count's last pivot (27.25, Oct 6, 2026) price has moved −21.9%, the way the count expects.7 of 7 rule-valid counts expect the current move to be down.Weekly count: flat wave C ↑, opposite direction

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 20.61, Jul 29, 2026

Pattern Confidence50Low

3 of 6 checks met

Key levels, preferred count

Reassess+28.0% from close

27.25

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

Target, next move−3.2% from close

20.61

Move after the correction retraces 100% of A–C

Nearest confluence zone−2.2% from close

20.61–21.05

3 Fibonacci relationships meet here.

Alternate count

Zigzag down · wave C ↓

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

A-B from 28.06, Aug 17, 2026

Pattern Confidence43Low

1 of 3 checks met

Why this count is preferred · 3 met, 3 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)
The count starts at the price extreme of the prior swing (a new trend begins where the old one ended)

Not met

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
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

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.

What changed

Structural events, most recent first

Oct 16, 2026New Fib zoneA new Fibonacci confluence zone formed near 20.83.
Oct 15, 2026Count droppedTriangle wE ↓ is no longer among the leading counts; now Zigzag complete ↓.
Oct 15, 2026New leading countTriangle complete ↓ entered the top three counts.
Oct 13, 2026New leading countNew leading count: Triangle wE ↓ (confidence 57).
Oct 13, 2026Count droppedZigzag wC ↑ is no longer among the leading counts; now Triangle wE ↓.
Oct 13, 2026Daily/weekly alignmentDaily (down) and weekly (up) counts no longer agree.
Oct 13, 2026Swing confirmedA new intermediate swing high was confirmed.
Oct 12, 2026New Fib zoneA new Fibonacci confluence zone formed near 23.95.
Oct 8, 2026New Fib zoneA new Fibonacci confluence zone formed near 24.51.
Oct 5, 2026Daily/weekly alignmentDaily and weekly counts now both point up.
Oct 2, 2026New Fib zoneA new Fibonacci confluence zone formed near 28.15.
Oct 1, 2026New Fib zoneA new Fibonacci confluence zone formed near 26.6.

Last swing high

27.25

Oct 6, 2026

Last swing low

21.86

Sep 15, 2026

Elliott Wave

Wave counts are built on these swings and each one passes every rule in the rulebook. They are ranked by how many guidelines they satisfy; the preferred and alternate counts are summarized above the chart.

MethodPrice versus its 50- and 200-day averages: above both with the 50 above the 200 is an uptrend, below both with the 50 below the 200 is a downtrend, anything else is mixed. Swings: adaptive ZigZag on daily bars, pivots-1.0.0+rules-1.0.0+candidates-1.0.0+fib-1.0.1+rank-1.1.0+setup-1.0.1.