PDFS

PDF Solutions, Inc.

NASDAQ · Common stock

41.18

−0.04 (−0.10%)

Close, Oct 20, 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

StructureExpanding rangeIntermediate-degree swings on the daily chart.

WaveUnresolvedZigzag, wave C down (Pattern Confidence 71); the weekly count agrees.

FibonacciZone belowNearest confluence 37.56–38.2 (2 relationships), −8.0% from the close.

MomentumWeak3 months −22.9% (behind SPY by 25.8 points); 6 months −5.6%.

RegimeMixed−12.8% vs the 50-day average, −6.8% vs the 200-day.

RiskNormal20-day volatility 69% vs 67% over the year; 1-year drawdown −44.6%; beta 2.99.

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

Current structure

Price, swings and the preferred count on the chart

PDFS · 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, 56.98 on Oct 6, 2026. 102 labelings tested, 86 broke a hard rule, 12+ remain.

Hard-rule evidence: why 86 labelings were eliminated

24Wave 2 always retraces less than 100% of wave 1
18Wave 3 always travels beyond the end of wave 1
12Wave 4 always retraces less than 100% of wave 3
11Contracting triangle: C ends short of A's end, D short of B's end, and E short of C's end
6Contracting diagonal: wave 3 is shorter than wave 1, wave 5 shorter than wave 3, and wave 4 shorter than wave 2
6Price 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 20, 2026

Fibonacci map

Confluence zones above and below the closeClose 41.18

41.18close

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

37.56 – 38.20−8.0% from the close

2 relationships · strength 3.8 · Intermediate, Primary degrees

38.20RetracementMove after the correction retraces 61.8% of A–C · Intermediate · Viridia
37.56ProjectionWave C = 61.8% of wave A · Primary · Essentials · 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 0.51 : 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 20, 2026
Price history: Automatic, updated nightly
Daily bars: 516 since Sep 30, 2024
Avg volume, 50 days: 607.2K
Dollar volume, 20 days: $28.0M
SEC CIK: 0001120914
Provider symbols: nasdaqtrader: PDFS · massive: PDFS
Listing changes: None since Sep 24, 2026

SourcePrices: Massive (end of day, split-adjusted). Listings: Nasdaq Trader, SECUpdatedOct 21, 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 20, 2026

Since the count's last pivot (56.98, Oct 6, 2026) price has moved −27.7%, the way the count expects.12 of 12 rule-valid counts expect the current move to be down.Weekly count: zigzag wave C ↓, same direction

Close call.The top two counts are within 4 points. Treat the structure as unresolved until one is invalidated.

Preferred count

Zigzag down · wave C ↓

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

A-B from 71.69, Jun 30, 2026

Pattern Confidence71High

3 of 3 checks met

Key levels, preferred count

Invalidation+74.1% from close

71.69

Price above this level breaks the count.

Target, wave C−37.9% from close

25.55

Wave C = 100% of wave A

Nearest confluence zone−8.0% from close

37.56–38.20

2 Fibonacci relationships meet here.

Alternate count

Flat up · complete, next move down ↓

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

A-B-C from 40.99, Jul 29, 2026

Pattern Confidence67Medium

4 of 5 checks met

Why this count is preferred · 3 met, 0 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

None.

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 20, 2026Daily/weekly alignmentDaily and weekly counts now both point down.
Oct 16, 2026New Fib zoneA new Fibonacci confluence zone formed near 37.88.
Oct 15, 2026Trend changedTrend moved from uptrend to mixed.
Oct 13, 2026New leading countNew leading count: Zigzag wC ↓ (confidence 71).
Oct 13, 2026Structure changedIntermediate structure changed from lower highs and lows to expanding.
Oct 13, 2026Count droppedImpulse w5 ↑ is no longer among the leading counts; now Zigzag wC ↓.
Oct 13, 2026Daily/weekly alignmentDaily (down) and weekly (up) counts no longer agree.
Oct 13, 2026Swing confirmedA new intermediate swing high was confirmed.
Oct 7, 2026New Fib zoneA new Fibonacci confluence zone formed near 51.13.
Oct 5, 2026New Fib zoneA new Fibonacci confluence zone formed near 58.67.
Oct 2, 2026New Fib zoneA new Fibonacci confluence zone formed near 56.98.
Oct 1, 2026New leading countFlat wC ↑ entered the top three counts.

Last swing high

56.98

Oct 6, 2026

Last swing low

40.26

Sep 3, 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.