Last week, the SEC officially proposed a timeline to make XBRL reporting mandatory for large US publicly-traded corporations (see press release here).  The great news:  this should eventually give individual investors the same kind of analytic capability — especially cross-company analysis — that now only exists for people who can afford a $25k Bloomberg subscription.  Even bigger:  it may help create a new generation of “provestors” (producers-investors) who *interact* with corporations and each other around financial data, rather than just “consuming” it.

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