SEC Announces Proposed Dark Pool Reforms
The number of active dark pools transacting in stocks that trade on major U.S. stock markets has tripled since 2002. In the face of the rapid growth of these venues, some commentators worry that their lack of transparency could create a two-tiered market that deprives the public of information about stock prices and liquidity.
On October 21, 2009, the SEC voted unanimously to propose measures intended to increase transparency of dark pools so investors get a clearer view of stock prices and liquidity.
The SEC’s proposals address three specific concerns related to dark pools:
The first proposal would require actionable Indications of Interest (IOIs) — which are similar to a typical buy or sell quote — to be treated like other quotes and subject to the same disclosure rules.
The second proposal would lower the trading volume threshold applicable to alternative trading systems (ATS) for displaying best-priced orders. Currently, if an ATS displays orders to more than one person, it must display its best-priced orders to the public when its trading volume for a stock is 5 percent or more. The SEC’s reform proposal would lower that percentage to 0.25 percent for ATSs.
The third proposal would create the same level of post-trade transparency for dark pools as for registered exchanges. Specifically the proposal would amend existing rules to require real-time disclosure of the identity of the dark pool that executed the trade.
While the SEC’s desire to pursue market transparency is commendable, it should also be wary of moving too quickly in regulating “dark pool” markets. Dark pool trading offers significant benefits to large investors, including a shelter from the share price premiums that result from “flash trading.”
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In the face of a financial crisis fueled by widespread overvaluation of real estate and mortgage-backed assets, investment banks and other financial sector interests have successfully lobbied to undermine accounting rules that ensure the integrity of asset valuations.
How much of an advantage is it to know about trades three hundredths of second before the investing public? Enough to warrant the concern of the SEC. The issue involves flash trading or high-frequency trading, which gives select traders the ability to see buy and sell orders a fraction of a second before the information becomes public. This tiny time advantage can be highly profitable, because high-speed super computers are able to process the flashed information to help investors capitalize on trading patterns that are not yet public information.