{
 "ok": true,
 "cik": "1370450",
 "ticker": "WLDN",
 "name": "WILLDAN GROUP, INC.",
 "filings": [
  {
   "form": "8-K",
   "filed": "2026-09-23",
   "items": [
    "1.01 Entry into a Material Definitive Agreement",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926110002/0001104659-26-110002-index.htm"
  },
  {
   "form": "10-Q",
   "filed": "2026-08-07",
   "items": [],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926092196/0001104659-26-092196-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-08-06",
   "items": [
    "2.02 Results of Operations and Financial Condition",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926092028/0001104659-26-092028-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-06-18",
   "items": [
    "5.02 Departure or Election of Directors; Appointment of Officers",
    "5.07 Submission of Matters to a Vote of Security Holders",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926075795/0001104659-26-075795-index.htm"
  },
  {
   "form": "10-Q",
   "filed": "2026-05-08",
   "items": [],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926057350/0001104659-26-057350-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-05-07",
   "items": [
    "2.02 Results of Operations and Financial Condition",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1370450/000110465926057151/0001104659-26-057151-index.htm"
  }
 ],
 "events12m": 6,
 "sources": {
  "facts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001370450.json",
  "filings": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1370450"
 },
 "license": "Figures as filed with the SEC. Card text CC BY 4.0, POPS4.",
 "notAdvice": "Reporting, not investment advice. No price targets, no buy or sell views.",
 "edgar": "🫧 Edgar looked up WILLDAN GROUP, INC. ($WLDN). Last filing: 8-K (1.01 Entry into a Material Definitive Agreement), 2026-09-23. 6 event filings (8-K) in the past twelve months.",
 "auditor": {
  "changes": [],
  "nonReliance": [],
  "restatedSince": null
 },
 "metrics": {
  "fiscalYearEnd": "2026-01-02",
  "revenue": 681552000,
  "revenueGrowth1y": 0.2045853820621495,
  "revenueGrowthPerYear": 0.17788195742364388,
  "yearsOfData": 5,
  "operatingMargin": 0.06477422118928564,
  "operatingMarginPrior": 0.05541376957854217,
  "netMargin": 0.07711370519050638,
  "operatingCashFlow": 80084000,
  "capitalSpending": 9387000,
  "freeCashFlow": 70697000,
  "researchAndDevelopment": null,
  "researchShareOfRevenue": null,
  "cash": 65919000,
  "longTermDebt": 48462000,
  "longTermDebtChange": -0.458446478259412,
  "revenueHistory": [
   {
    "fiscalYearEnd": "2021-12-31",
    "revenue": 353755000
   },
   {
    "fiscalYearEnd": "2022-12-30",
    "revenue": 429138000
   },
   {
    "fiscalYearEnd": "2023-12-29",
    "revenue": 510095000
   },
   {
    "fiscalYearEnd": "2024-12-27",
    "revenue": 565798000
   },
   {
    "fiscalYearEnd": "2026-01-02",
    "revenue": 681552000
   }
  ],
  "totalEquity": 304851000,
  "totalAssets": 544211000,
  "equityRatio": 0.5601705955961934,
  "returnOnEquity": 0.17240225552811045,
  "dividendsPaid": null,
  "payoutRatio": null,
  "dividendPerShare": null,
  "dividendYearsRising": null,
  "dividendCut": null,
  "priceBased": "Dividend yield, price/earnings and price/book need a share price. The boards carry filings only, so they are not shown.",
  "earningsPerShare": 3.63,
  "sharesOutstanding": 15071000,
  "bookValuePerShare": 20.22765576272311,
  "revenuePerShare": 45.222745670493,
  "range80": {
   "low": 696782279.1707067,
   "high": 899544631.2606527,
   "baseline": 808084602.4381652,
   "n": 4309,
   "band": "b01",
   "bandLabel": "$100M–1B",
   "method": "v4.1",
   "credibility": 0.5,
   "growthYears": 4,
   "ownVolatility": 0.041077816894753275,
   "classVolatility": 0.1022985825903761,
   "volatility": 0.07794994240164285
  },
  "ifPaceHeld": {
   "low": 696782279.1707067,
   "high": 899544631.2606527
  }
 },
 "edgarette": "🔖 Exposure: revenue $681.6M (FY2026), total debt $48.5M. Experience: revenue up 20.5% on the year, up 17.8% a year over 4 years; operating margin 6.5%, up from 5.5%. Soundness: equity 56.0% of assets, return on equity 17.2%. Credibility: four or more audited years, reasonable weight. Range: 80% of past cases like this landed between $696.8M and $899.5M next year (method v4.1: its own 4-year record of growth weighed at 50% against $100M–1B filers; on a year the method never saw, 83.4% landed inside). In a shock year the stress range is $653.2M to $962.1M. A range, not a forecast. Against peers (37 filers, $50M+ revenue, its industry group): operating margin 6.5% against a 6.5% median; growth 20.5% against 3.9%.",
 "peers": {
  "sic": 8711,
  "sicDescription": "Services-Engineering Services",
  "calendarYear": 2025,
  "minRevenue": 50000000,
  "depth": 2,
  "group": "87",
  "growth": [
   0.0394,
   36
  ],
  "opMargin": [
   0.0648,
   37
  ],
  "equityRatio": [
   0.4062,
   37
  ],
  "returnOnEquity": [
   0.0895,
   35
  ],
  "payoutRatio": [
   0.5699,
   13
  ]
 },
 "summary": "Willdan Group, Inc. (WLDN) grew revenue 20.5% in FY2026 to $682 million, operating margin 6.5%, in line with the 6.5% median for services-engineering services, equity 56.0% of assets. Every figure is from the company’s own annual report filed with the SEC.",
 "chart": "<figure class=\"cmp\"><figcaption>WILLDAN GROUP, INC. against its own record and its peers</figcaption><svg viewBox=\"0 0 560 138\" width=\"100%\" role=\"img\" aria-label=\"Comparison chart\"><rect x=\"0\" y=\"0\" width=\"560\" height=\"138\" fill=\"none\"/><text x=\"0\" y=\"34\" font-size=\"11\" fill=\"#6f6450\">Operating margin</text><rect x=\"148\" y=\"25\" width=\"338\" height=\"10\" rx=\"5\" fill=\"#efe7d6\"/><line x1=\"260.66666666666663\" y1=\"21\" x2=\"260.66666666666663\" y2=\"39\" stroke=\"#cfc5ae\" stroke-width=\"1\"/><line x1=\"297.17066666666665\" y1=\"20\" x2=\"297.17066666666665\" y2=\"40\" stroke=\"#c9a84c\" stroke-width=\"2.5\"/><title>Peer median 6.5%</title><circle cx=\"297.15614460329755\" cy=\"30\" r=\"6\" fill=\"#0a2240\" stroke=\"#fff\" stroke-width=\"1.5\"/><text x=\"494\" y=\"34\" font-size=\"11\" font-weight=\"700\" fill=\"#0a2240\">6.5%</text><text x=\"0\" y=\"60\" font-size=\"11\" fill=\"#6f6450\">Revenue, on the year</text><rect x=\"148\" y=\"51\" width=\"338\" height=\"10\" rx=\"5\" fill=\"#efe7d6\"/><line x1=\"292.8571428571429\" y1=\"47\" x2=\"292.8571428571429\" y2=\"65\" stroke=\"#cfc5ae\" stroke-width=\"1\"/><line x1=\"311.8817142857143\" y1=\"46\" x2=\"311.8817142857143\" y2=\"66\" stroke=\"#c9a84c\" stroke-width=\"2.5\"/><title>Peer median 3.9%</title><circle cx=\"391.64265591000935\" cy=\"56\" r=\"6\" fill=\"#0a2240\" stroke=\"#fff\" stroke-width=\"1.5\"/><text x=\"494\" y=\"60\" font-size=\"11\" font-weight=\"700\" fill=\"#0a2240\">20.5%</text><text x=\"0\" y=\"86\" font-size=\"11\" fill=\"#6f6450\">Equity of assets</text><rect x=\"148\" y=\"77\" width=\"338\" height=\"10\" rx=\"5\" fill=\"#efe7d6\"/><line x1=\"285.29560000000004\" y1=\"72\" x2=\"285.29560000000004\" y2=\"92\" stroke=\"#c9a84c\" stroke-width=\"2.5\"/><title>Peer median 40.6%</title><circle cx=\"337.3376613115134\" cy=\"82\" r=\"6\" fill=\"#0a2240\" stroke=\"#fff\" stroke-width=\"1.5\"/><text x=\"494\" y=\"86\" font-size=\"11\" font-weight=\"700\" fill=\"#0a2240\">56.0%</text><text x=\"0\" y=\"112\" font-size=\"11\" fill=\"#6f6450\">Return on equity</text><rect x=\"148\" y=\"103\" width=\"338\" height=\"10\" rx=\"5\" fill=\"#efe7d6\"/><line x1=\"232.5\" y1=\"99\" x2=\"232.5\" y2=\"117\" stroke=\"#cfc5ae\" stroke-width=\"1\"/><line x1=\"270.31374999999997\" y1=\"98\" x2=\"270.31374999999997\" y2=\"118\" stroke=\"#c9a84c\" stroke-width=\"2.5\"/><title>Peer median 8.9%</title><circle cx=\"305.33995296062665\" cy=\"108\" r=\"6\" fill=\"#0a2240\" stroke=\"#fff\" stroke-width=\"1.5\"/><text x=\"494\" y=\"112\" font-size=\"11\" font-weight=\"700\" fill=\"#0a2240\">17.2%</text><text x=\"0\" y=\"136\" font-size=\"10\" fill=\"#8b8375\">Gold tick: the median of 35–37 peers with $50M+ revenue in services-engineering services</text></svg></figure>",
 "chartHorizon": null,
 "backtest": {
  "tests": 13,
  "hits": 10,
  "rate": 0.7692307692307693,
  "method": "v4",
  "byYear": {
   "2013": [
    1,
    1
   ],
   "2015": [
    1,
    1
   ],
   "2016": [
    1,
    2
   ],
   "2017": [
    1,
    1
   ],
   "2018": [
    1,
    1
   ],
   "2019": [
    0,
    1
   ],
   "2021": [
    1,
    2
   ],
   "2022": [
    1,
    1
   ],
   "2023": [
    1,
    1
   ],
   "2024": [
    1,
    1
   ],
   "2026": [
    1,
    1
   ]
  },
  "note": "hindsight: the same credibility-weighted range on the company's own past years. Years 2018-2023 were used to fit or tune the method, so only 2025 outcomes are fully out of sample."
 },
 "registry": {
  "logged": "2026-09-24T14:21:18.152Z",
  "hash": "a6e4e3d89d2aef80",
  "status": "open"
 },
 "caution": "Figures are as filed in audited 10-K reports and can move with restatements, acquisitions, disposals or a change in fiscal year. A range set from how past company-years turned out is not a promise about the next one, and says nothing about the share price.",
 "schema": "pops4.edgarette.card/1",
 "card": {
  "summary": "Willdan Group, Inc. (WLDN) grew revenue 20.5% in FY2026 to $682 million, operating margin 6.5%, in line with the 6.5% median for services-engineering services, equity 56.0% of assets. Every figure is from the company’s own annual report filed with the SEC.",
  "exposure": {
   "fiscalYearEnd": "2026-01-02",
   "revenue": 681552000,
   "totalDebt": 48462000,
   "cash": 65919000
  },
  "experience": {
   "revenueGrowth1y": 0.2045853820621495,
   "revenueGrowthPerYear": 0.17788195742364388,
   "operatingMargin": 0.06477422118928564,
   "operatingMarginPrior": 0.05541376957854217,
   "netMargin": 0.07711370519050638,
   "freeCashFlow": 70697000
  },
  "soundness": {
   "equityRatio": 0.5601705955961934,
   "returnOnEquity": 0.17240225552811045,
   "payoutRatio": null,
   "dividendPerShare": null,
   "dividendYearsRising": null,
   "dividendCut": null,
   "note": "Dividend yield, price/earnings and price/book need a share price. The boards carry filings only, so they are not shown."
  },
  "peers": {
   "sic": 8711,
   "sicDescription": "Services-Engineering Services",
   "calendarYear": 2025,
   "minRevenue": 50000000,
   "depth": 2,
   "group": "87",
   "growth": [
    0.0394,
    36
   ],
   "opMargin": [
    0.0648,
    37
   ],
   "equityRatio": [
    0.4062,
    37
   ],
   "returnOnEquity": [
    0.0895,
    35
   ],
   "payoutRatio": [
    0.5699,
    13
   ]
  },
  "credibility": {
   "auditedYears": 5,
   "weight": "reasonable",
   "standard": "ASOP No. 25",
   "nonReliance": null,
   "auditorChange": null
  },
  "range": {
   "low": 696782279.1707067,
   "high": 899544631.2606527,
   "baseline": 808084602.4381652,
   "coverage": 0.8,
   "method": "v4.1",
   "basis": "next fiscal year revenue: baseline = revenue x (1 + mean of one-year and three-year pace); width = the company's own volatility of yearly growth, credibility-weighted against its size class (Buhlmann), scaled to the 80% target on 2023 and tested on 2024",
   "calibratedOn": {
    "companyYears": 4309,
    "sizeBand": "$100M–1B",
    "fitYears": [
     2018,
     2022
    ],
    "tuneYear": 2023,
    "testYear": 2024,
    "coverageOnTestYear": 0.8341
   },
   "credibility": {
    "weightOnOwnRecord": 0.5,
    "growthYears": 4,
    "ownVolatility": 0.041077816894753275,
    "classVolatility": 0.1022985825903761,
    "pricedVolatility": 0.07794994240164285,
    "k": 3
   },
   "stress": {
    "low": 653182687.3820261,
    "high": 962082281.6909428,
    "basis": "the same range with widths set to hold 80% across 2018-2023, pandemic years included"
   },
   "kind": "a calibrated range, not a forecast; no view on the share price",
   "track": {
    "backtest": {
     "tests": 13,
     "hits": 10,
     "rate": 0.7692307692307693,
     "method": "v4",
     "byYear": {
      "2013": [
       1,
       1
      ],
      "2015": [
       1,
       1
      ],
      "2016": [
       1,
       2
      ],
      "2017": [
       1,
       1
      ],
      "2018": [
       1,
       1
      ],
      "2019": [
       0,
       1
      ],
      "2021": [
       1,
       2
      ],
      "2022": [
       1,
       1
      ],
      "2023": [
       1,
       1
      ],
      "2024": [
       1,
       1
      ],
      "2026": [
       1,
       1
      ]
     },
     "note": "hindsight: the same credibility-weighted range on the company's own past years. Years 2018-2023 were used to fit or tune the method, so only 2025 outcomes are fully out of sample."
    },
    "registry": {
     "logged": "2026-09-24T14:21:18.152Z",
     "hash": "a6e4e3d89d2aef80",
     "status": "open"
    },
    "scorecard": "https://www.pops4.com/boards/scorecard"
   }
  },
  "caution": "Figures are as filed in audited 10-K reports and can move with restatements, acquisitions, disposals or a change in fiscal year. A range set from how past company-years turned out is not a promise about the next one, and says nothing about the share price.",
  "sources": {
   "facts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001370450.json",
   "filings": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1370450"
  }
 },
 "definitions": {
  "operatingMargin": "Operating income divided by revenue.",
  "netMargin": "Net income divided by revenue.",
  "freeCashFlow": "Cash from operations minus spending on property and equipment.",
  "researchShareOfRevenue": "Research and development expense for the year as a share of revenue, both as filed.",
  "equityRatio": "Shareholders equity as a share of total assets, both as filed. Higher means less of the company is owed to someone else.",
  "returnOnEquity": "Net income for the year against shareholders equity at year end.",
  "payoutRatio": "Dividends paid as a share of net income, in the year the cash went out.",
  "dividendYearsRising": "Consecutive years, counted back from the last on record, in which dividend per share rose. A fall ends the run and is reported as dividendCut.",
  "revenueGrowthPerYear": "Compound annual growth between the first and latest fiscal years shown.",
  "credibility": "How much weight a record deserves, in the actuarial sense (ASOP No. 25): more audited years, more weight.",
  "peers": "Medians of SEC filers with $50M+ revenue in the same industry code (SIC), narrowest group with at least 8 filers, calendar-year figures from SEC XBRL frames.",
  "backtest": "The same if-the-pace-held arithmetic applied to the company's own past years, scored against what it actually reported next. Hindsight, and labelled so."
 }
}