Backtest · 2011 cohort

The widest moats of 2011, scored with only what was filed then.

Scored as of 2011-12-31 from the 10-Ks on file at that date — no later restatements, no hindsight. 380 companies scored; the table lists the 100 widest by as-of moat composite. The forward returns below were joined afterward: entry is the first market close on or after Jan 1, 2012.

#CompanyMoatAs-of score1-yr return3-yr return5-yr return
1GILEAD SCIENCES, INC.GILDfrom FY2010 10-KWide moat100.079%353%267%
2MICROSOFT CORPORATIONMSFTfrom FY2011 10-KWide moat99.86%90%169%
3MYRIAD GENETICS, INC.MYGNfrom FY2011 10-KWide moat97.732%65%−19%
4HERBALIFE LTD.HLFfrom FY2010 10-KWide moat96.9−37%−25%−1%
5Cimpress plcCMPRfrom FY2011 10-KWide moat96.613%142%206%
6INTUIT INC.INTUfrom FY2011 10-KWide moat96.419%80%131%
7S&P Global Inc.SPGIfrom FY2010 10-KWide moat95.831%115%170%
8Estee Lauder Companies IncELfrom FY2011 10-KWide moat95.310%39%46%
9ResMed Inc.RMDfrom FY2011 10-KWide moat94.767%134%164%
10Intuitive Surgical, Inc.ISRGfrom FY2010 10-KWide moat94.75%11%36%
11RALPH LAUREN CORPORATIONRLfrom FY2011 10-KWide moat94.512%38%−29%
12BIOGEN INC.BIIBfrom FY2010 10-KWide moat94.432%201%157%
13Starbucks CorporationSBUXfrom FY2011 10-KWide moat94.323%88%162%
14Tapestry, Inc.TPRfrom FY2011 10-KWide moat94.1−7%−33%−31%
15STRYKER CORPSYKfrom FY2010 10-KWide moat93.911%93%152%
16ADVANCE AUTO PARTS, INC.AAPfrom FY2010 10-KWide moat93.75%131%150%
17C.H. ROBINSON WORLDWIDE, INC.CHRWfrom FY2010 10-KWide moat93.6−8%13%17%
18Fossil Group, Inc.FOSLfrom FY2010 10-KWide moat93.519%39%−67%
19ADTRAN Holdings, Inc.ADTNfrom FY2010 10-KWide moat92.4−32%−24%−18%
20BECTON DICKINSON & COBDXfrom FY2011 10-KWide moat92.29%100%144%
21Monster Beverage CorpMNSTfrom FY2010 10-KWide moat92.017%134%195%
22QUALCOMM INC/DEQCOMfrom FY2011 10-KWide moat91.919%42%34%
23ZIFF DAVIS, INC.ZDfrom FY2010 10-KWide moat91.915%131%222%
24HASBRO, INC.HASfrom FY2010 10-KWide moat91.817%90%190%
25COLGATE-PALMOLIVE COMPANYCLfrom FY2010 10-KWide moat91.320%62%61%
26NORDSON CORPORATIONNDSNfrom FY2011 10-KWide moat91.359%94%188%
27EZCORP, INC.EZPWfrom FY2011 10-KWide moat91.2−26%−57%−61%
28BIO-TECHNE CorpTECHfrom FY2011 10-KWide moat90.93%40%61%
29Covista Inc.CVSAfrom FY2011 10-KWide moat90.3−38%18%−14%
30INTEL CORPINTCfrom FY2010 10-KWide moat90.0−10%65%76%
31UNDER ARMOUR, INC.UAAfrom FY2010 10-KWide moat90.034%271%231%
32TERADATA CORP /DE/TDCfrom FY2010 10-KWide moat89.429%−11%−44%
33GAP, INCGAPfrom FY2011 10-KWide moat89.372%139%43%
34F5, INC.FFIVfrom FY2011 10-KWide moat89.2−5%23%37%
35COPART, INC.CPRTfrom FY2011 10-KWide moat88.930%55%137%
36lululemon athletica inc.LULUfrom FY2011 10-KWide moat88.857%18%42%
37PRICE T ROWE GROUP INCTROWfrom FY2010 10-KWide moat88.520%60%54%
38Analog Devices, Inc.ADIfrom FY2011 10-KWide moat88.326%69%132%
39DECKERS OUTDOOR CORPDECKfrom FY2010 10-KWide moat88.1−50%17%−25%
40COCA COLA COKOfrom FY2010 10-KWide moat88.010%31%39%
41BUCKLE, INCBKEfrom FY2011 10-KWide moat87.926%59%−19%
42Urban Outfitters, Inc.URBNfrom FY2011 10-KWide moat87.948%26%3%
43AGILENT TECHNOLOGIES, INC.Afrom FY2011 10-KWide moat87.316%60%87%
44DOLLAR TREE, INC.DLTRfrom FY2011 10-KWide moat87.0−3%71%88%
45eBay Inc.EBAYfrom FY2010 10-KWide moat86.971%79%126%
46IDEXX LABORATORIES INC /DEIDXXfrom FY2010 10-KWide moat86.619%86%197%
47SYNOPSYS INCSNPSfrom FY2011 10-KWide moat86.620%60%120%
48DENTSPLY SIRONA Inc.XRAYfrom FY2010 10-KWide moat86.515%49%70%
49ECOLAB INC.ECLfrom FY2010 10-KWide moat86.430%86%116%
50HAEMONETICS CORPORATIONHAEfrom FY2011 10-KWide moat86.334%18%26%
51BRINKER INTERNATIONAL, INC.EATfrom FY2011 10-KWide moat86.124%137%109%
52TEXAS INSTRUMENTS INCORPORATEDTXNfrom FY2010 10-KWide moat85.810%93%180%
53FASTENAL COFASTfrom FY2010 10-KWide moat85.713%16%21%
54WOLVERINE WORLD WIDE, INC.WWWfrom FY2010 10-KWide moat85.620%74%34%
55Carter's, Inc.CRIfrom FY2010 10-KWide moat85.343%121%129%
56Booking Holdings Inc.BKNGfrom FY2010 10-KWide moat85.232%135%204%
57NetApp, Inc.NTAPfrom FY2011 10-KWide moat85.0−7%16%4%
58AMERICAN EAGLE OUTFITTERS INCAEOfrom FY2011 10-KWide moat84.752%11%32%
59MATTEL INC /DE/MATfrom FY2010 10-KWide moat84.538%23%28%
60NCR VOYIX CORPORATIONVYXfrom FY2010 10-KWide moat84.055%73%147%
61JOHN WILEY & SONS, INC.WLYfrom FY2011 10-KWide moat83.9−10%39%35%
62OPEN TEXT CORPOTEXfrom FY2011 10-KWide moat83.710%128%149%
63SOMNIGROUP INTERNATIONAL INC.SGIfrom FY2010 10-KWide moat83.6−41%−2%24%
64Microchip Technology IncorporatedMCHPfrom FY2011 10-KWide moat83.5−2%40%111%
65MSC INDUSTRIAL DIRECT CO., INC.MSMfrom FY2011 10-KWide moat83.410%24%48%
66DONALDSON COMPANY, INC.DCIfrom FY2011 10-KWide moat83.31%17%34%
67INTEGRA LIFESCIENCES HOLDINGS CORPIARTfrom FY2010 10-KWide moat83.226%71%172%
68AUTOZONE INCAZOfrom FY2011 10-KWide moat82.912%93%147%
69FLOWSERVE CORPFLSfrom FY2010 10-KWide moat82.851%81%53%
70Apple Inc.AAPLfrom FY2011 10-KWide moat82.635%97%117%
71SYNAPTICS INCORPORATEDSYNAfrom FY2011 10-KWide moat82.10%112%84%
72Blackbaud, Inc.BLKBfrom FY2010 10-KWide moat82.1−15%55%144%
73SILICON LABORATORIES INC.SLABfrom FY2010 10-KWide moat81.8−1%8%50%
74HALLIBURTON COMPANYHALfrom FY2010 10-KWide moat81.76%20%75%
75AUTODESK, INC.ADSKfrom FY2011 10-KWide moat81.320%93%147%
76JACK HENRY & ASSOCIATES, INC.JKHYfrom FY2011 10-KWide moat81.222%92%182%
77Gen Digital Inc.GENfrom FY2011 10-KWide moat81.224%70%107%
78Maximus, Inc.MMSfrom FY2011 10-KWide moat81.056%161%171%
79ZIMMER BIOMET HOLDINGS, INC.ZBHfrom FY2010 10-KWide moat80.927%115%101%
80First Solar, Inc.FSLRfrom FY2010 10-KWide moat80.9−11%24%−6%
81SEMTECH CORPSMTCfrom FY2011 10-KWide moat80.718%11%26%
82GENTEX CORPORATIONGNTXfrom FY2010 10-KWide moat80.7−35%28%51%
83ADOBE INC.ADBEfrom FY2010 10-KWide moat80.634%153%262%
843M COMPANYMMMfrom FY2010 10-KWide moat80.117%111%142%
85THE CHEESECAKE FACTORY INCORPORATEDCAKEfrom FY2010 10-KWide moat80.013%77%116%
86AMPHENOL CORP /DE/APHfrom FY2010 10-KNarrow moat79.849%139%206%
87LABCORP HOLDINGS INC.LHfrom FY2010 10-KNarrow moat79.61%29%49%
88Netflix, Inc.NFLXfrom FY2010 10-KNarrow moat79.627%383%1138%
89Cracker Barrel Old Country Store, Inc.CBRLfrom FY2011 10-KNarrow moat79.330%194%282%
90MORNINGSTAR, INC.MORNfrom FY2010 10-KNarrow moat79.18%12%30%
91FLOWERS FOODS, INCFLOfrom FY2010 10-KNarrow moat78.731%65%83%
92VERU INC.VERUfrom FY2011 10-KNarrow moat78.660%−11%−79%
93Bio-Rad Laboratories, Inc.BIOfrom FY2010 10-KNarrow moat78.510%23%86%
94RTX CORPORATIONRTXfrom FY2010 10-KNarrow moat78.116%66%69%
95INNOVEX INTERNATIONAL, INC.INVXfrom FY2010 10-KNarrow moat77.9
96GameStop Corp.GMEfrom FY2011 10-KNarrow moat77.712%57%29%
97GENPACT LIMITEDGfrom FY2010 10-KNarrow moat77.720%46%89%
98HP INC.HPQfrom FY2011 10-KNarrow moat77.5−42%62%42%
99TRACTOR SUPPLY CO /DE/TSCOfrom FY2010 10-KNarrow moat77.333%131%129%
100CHURCH & DWIGHT CO., INC.CHDfrom FY2010 10-KNarrow moat77.222%84%113%
Berkshire Hathaway (BRK.B, total return)benchmark · total return (same basis)20%92%111%
S&P 500 (price return)benchmark · price return15%61%77%

Two benchmarks, and we’re careful about the basis. Company returns are total returns (dividends reinvested). Berkshire Hathaway (BRK.B, total return) is on the same total-return basis — the fair, like-for-like comparison (Berkshire pays no dividend, so its dividend-adjusted and price series coincide). The S&P 500 (price return) is a price index that excludes dividends and so understates the market by roughly its dividend yield — shown for reference, not as a fair bar. A “—” is an unfinished forward window or a name without joined returns, never a zero. Where a name stopped trading mid-window it reports null with a note, never a guessed return.

The caveats, in the engine’s own words

  • Point-in-time reconstruction: each score uses only SEC filings on file by Dec 31 of the cohort year; restatements filed later are ignored, and filers with December fiscal year-ends are scored off the prior fiscal year (their 10-K arrives the following spring).
  • Survivorship bias: unless delisted companies were ingested explicitly by CIK, the cohort is drawn from companies still filing with the SEC today — names that failed or delisted since are missing, which flatters any forward-looking comparison. Companies whose filings had already gone stale at the cutoff are computed but excluded from the ranking (the stale count). The same caveat extends to returns: a name that stopped trading mid-window reports null with a note, never a guessed return through its delisting. Price histories are keyed by each company's ticker symbol as of today; a symbol that changed hands between issuers during a window can misattribute price history.
  • Scores are business-quality only: no prices feed them, so valuation, margin of safety, and price-dependent verdicts are absent. Forward returns are a separate join of market data made after scoring and never influence any score.
  • Forward returns start strictly after the information cutoff: entry is the first trading close on or after Jan 1 of the year following the cohort year, and each 1y/3y/5y window runs anchor-to-anchor to the first trading close of the corresponding later year. Windows that have not fully elapsed are null — never annualized or extrapolated from a partial period.
  • Return basis honesty: company returns are total returns (split-adjusted closes with dividends reinvested at the ex-date); the S&P 500 benchmark is the ^GSPC price index, which excludes dividends and therefore understates the index by roughly its dividend yield in any comparison. A second benchmark, Berkshire Hathaway (BRK.B), is computed on the SAME total-return basis as the companies — Berkshire pays no dividend, so its dividend-adjusted series equals its price series, and the same code path is used so the comparison is strictly like-for-like. Each record labels its own returnBasis.
  • Educational, not investment advice. Hindsight makes every backtest look wiser than anyone could have been at the time.