A playbook for Generating Business Ideas

1. Goldman Sachs for Private Company Stock
People invest lots of money in public markets. The services that support those
investors include stock exchanges (NYSE), brokerage (banks and brokerage
houses), discount brokerage (Fidelity, Scottrade), research (banks, boutique
firms), managed funds (hedge funds, mutual funds, etc.), and more.
There are many massively profitable companies in each of these sectors. I see no
reason why those same services couldn’t be provided for private company shares
investing and trading.

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Companies like SecondMarket, AxialMarket, and Angellist have been making
inroads here; however, if you believe demand for private company shares will
increase, and that trading will become as liquid as public markets, then there’s
still a ton of opportunity here.
Discount brokerage seems like the most plausible opportunity, with equity
research being a close second. An ETF or mutual fund of startup shares also
seems plausible. Further customer development would be needed to determine
specific offerings.