In fact, many of the most successful companies in the world are really holding companies. Verifiable examples (look at their stock history and salivate at the gift you are literally being handed based on MHHC's current stock price):
Oh please. Everyone knows what a holding company is. And most have better sense than to compare ANY exchange-listed holding company to MHHC, which is a Pink No Information issue.
There are, in fact, tons of OTC holding companies. They are no more or less successful than other OTC issuers, which is to say most are not doing especially well:
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