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Data & MethodologyHelp

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Data and methodology

Where every number in Viridia comes from, how often it updates, how it's checked, and what isn't covered yet.

Active securities
13,274
Every NYSE, NASDAQ, NYSE American, NYSE Arca and Cboe listing
Common stocks
5,953
Including ADRs and partnership units
ETFs
5,787
Exchange-traded funds and products
Matched to SEC CIK
7,532
Links each company to its EDGAR filings
Universe by exchangeActive listingsBrowse
ExchangeCommonETFsOtherTotal
NASDAQ3,4391,2958875,621
NYSE2,214795982,891
NYSE Arca162,73012,747
Cboe BZX41,67601,680
NYSE American270039309
F107219
Index0077
SourceNasdaq Trader symbol directoryUpdatedOct 19, 2026, 8:00 AM EDTMethodActive rows grouped by listing exchange
Listings
Source
Nasdaq Trader symbol directories, matched to SEC company identifiers
Updates
Every weekday and Saturday morning
Last update
Oct 19, 2026, 8:00 AM EDT (4 h ago)
Last update found
7 new, 3 renamed, 11 delisted
SourceNasdaq Trader, SECUpdatedOct 19, 2026, 8:00 AM EDTMethodEach update is compared with the stored universe; changes are recorded below
Market dataLatest session 2026-10-16
Sessions stored
514
2024-09-30 to 2026-10-16
Daily bars
1,875,684
Split-adjusted, end of day
Automatic coverage
4,000
The most-traded listings, updated after every session
On-demand coverage
102
Fetched the first time a security is opened, then kept current

Integrity checks. Every weekday evening the recent history of every security is checked for malformed bars, split-like jumps that suggest unadjusted history, moves over 40%, opens and closes on different adjustment bases, stale prices, duplicate listings, ticker changes and corporate actions. Flagged items are reviewed before they can distort an analysis. Last run Oct 15, 2026, 7:05 PM EDT: 767 items flagged for review, 4 high priority.

SourceMassive grouped daily barsUpdated2026-10-16MethodThe whole market in one request per session; other securities on demand
AnalysisEngine pivots-1.0.0+rules-1.0.0+candidates-1.0.0+fib-1.0.1+rank-1.1.0+setup-1.0.1
Daily analyses
4,100
4,100 on the latest data
Weekly analyses
4,100
4,092 on the latest data
Securities analysed
4,100
Last update 2 min ago

Daily analyses are recomputed after every session; weekly analyses when a week completes. Each includes swing pivots at three degrees, every wave count that passes the hard rules, their ranking by Pattern Confidence, Fibonacci targets and confluence zones, and any setup the preferred count implies. Hourly and monthly pivots are computed when a chart is opened. Each session's analysis is compared with the previous one to record structural events.

SourceViridia engine on stored Massive barsUpdatedOct 19, 2026, 11:36 AM EDTMethodAdaptive ZigZag: a swing is confirmed only after price reverses by max(timeframe floor, ATR(14) multiple), on a later bar. Pivots are never revised after confirmation. 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. 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.
Recent listing changesNew listings, renames, exchange moves, delistings
DateSymbolChangeDetail
2026-10-19WINClistedWilliam Blair Emerging Income ETF
2026-10-19SRTMlistedStratum Holdings Corp.
2026-10-19SQBRlistedFT Vest U.S. Equity Quarterly 20 Barrier ETF
2026-10-19SEQlistedSequoia ETF
2026-10-19DCMlistedDeFi Capital Markets, Inc.
2026-10-19AIEDlistedDefiance LLM Catalyst Momentum ETF
2026-10-19ACIVlistedHartford Alpha Capture International Value ETF
2026-10-19XCLRdelistedGlobal X S&P 500 Collar 95-110 ETF
2026-10-19AMOMdelistedQRAFT AI-Enhanced U.S. Large Cap Momentum ETF
2026-10-19MMEDV

Preferreds, warrants, units and rights are tracked too, but search ranks common stock, ETFs and indexes first.

delisted
MiniMed Group, Inc.
2026-10-19LRHCdelistedLa Rosa Holdings Corp.
2026-10-19ACVAdelistedACV Auctions Inc. Class A
SourceListing updatesUpdatedOct 19, 2026, 8:00 AM EDTMethodDifferences between each update and the stored universe
Coverage and limitations
  • Prices are end of day and split-adjusted. There are no intraday quotes.
  • Indexes, yields and futures aren't in the data plan, so markets appear through liquid ETFs that track them.
  • Wave counts cover single patterns at three degrees. Combination corrections aren't evaluated yet.
  • Fundamentals from SEC filings aren't loaded yet. Earnings and economic calendars aren't connected.
  • Setup track record replays about a year of history for each security, without costs or slippage.