
Private Company Stock Trading Frenzy: Here's Who's Trading What(Jan 22, 2011)
created At: 2/12/2025

Sell
This analysis includes a sell recommendation. Please carefully review all mentioned risk before proceeding.
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Fact
Facebook was the most traded company on SecondMarket in 2010, accounting for 39% of all pre-IPO transactions.
SecondMarket allows accredited investors (earning $200,000+ annually or holding $1M+ in assets) to buy private company stock.
The average transaction size is $2 million, with most trades made by hedge funds and VC firms, not individuals.
Facebook stock trading follows an auction model, where:
SecondMarket gauges buyer and seller interest before starting.
Auctions run for nine days, with the highest bidders winning shares.
SecondMarket charges a 3-5% commission, split between buyers and sellers.
Facebook auctions occur regularly, providing frequent investment opportunities.
Opinion
While private stock markets like SecondMarket offer exclusive access to highly sought-after pre-IPO companies, the system favors institutional investors and high-net-worth individuals, shutting out the average retail investor.
Facebook’s dominance on SecondMarket (39-45% of trades) raises concerns about market concentration and speculative frenzy, as demand skyrockets despite limited supply. The high auction-driven pricing mechanism can easily lead to overvaluation, leaving late entrants exposed to potential losses if the stock corrects post-IPO.
Furthermore, liquidity is a major risk—unlike public stocks, private shares cannot be easily resold, meaning investors may be stuck with overpriced assets until an exit event, like an IPO or acquisition, occurs.
While the hype around Facebook was justified in hindsight, history warns that private stock markets often create bubbles, with early buyers profiting while later entrants get burned.
Core Sell Point
Private stock hype creates artificial scarcity—latecomers risk overpaying for illiquid shares.
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