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Quarterly XBRL-based Public Company Financial Report Quality Measurement (Mar 2018) 

The following is a summary of the quality measurements of XBRL-based financial reports submitted to the SEC as of March 31, 2018.  The following Excel spreadsheets and other documents provide details related to these quality measurements:

In summary, fundamental accounting concept relations quality has steadily improved each year as can be seen by the three year comparison.  On an individual test basis, each of the 22 relations tests is 98% consistent with what is expected.  88.5% of all XBRL-based financial reports are consistent with all 22 relations tests as would be expected.  The goal as I see it is that all XBRL-based financial filings are 99.99966% consistent with expectations (six sigma).

I have added measurements of what I call the disclosure mechanics of 65 disclosures.  Disclosure mechanics quality has increased from 88% to 90% for the 65 disclosures I am measuring.  Again, the goal is six sigma for every disclosure reported.

The following are graphical summaries:

Fundamental accounting concept relations for last 10-K or 10-Q filed by generator of the report:

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Fundamental accounting concept relations by relation test (same filings as above):

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Comparison of 2016, 2017, and 2018 fundamental accounting relations results: 

(Click image for larger view)

Disclosure mechanics by generator results from analysis of last 10-K filed with SEC as of March 31, 2018:

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Disclosure mechanics results by disclosure:

(Click image for larger view)

I will likely put together a narrative that explains these measurements in more detail. 


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