Regulation NMS
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| Regulation NMS | |
|---|---|
| Name | Regulation NMS |
| Abbreviation | NMS |
| Enacted | 2005 |
| Agency | Securities and Exchange Commission |
| Related legislation | Securities Exchange Act of 1934 |
| Topic | Market structure |
Regulation NMS Regulation NMS is a set of rules promulgated by the Securities and Exchange Commission in 2005 to modernize the regulatory framework for New York Stock Exchange and NASDAQ equity markets, reconcile execution obligations among NYSE Arca and BATS Global Markets, and respond to technological changes epitomized by firms like Citadel LLC and Knight Capital Group. It aimed to protect displayed quotation priority across venues such as NYSE American, Cboe Global Markets, and Direct Edge while interacting with institutions including the Federal Reserve and firms like Goldman Sachs and Morgan Stanley.
Background and Legislative History
Regulatory impetus came after episodes involving Long-Term Capital Management and market events linked to the evolution of electronic trading pioneered by E-Trade, Charles Schwab Corporation, and Spearman Capital, prompting the Securities and Exchange Commission to amend standards under the Securities Exchange Act of 1934. Policymakers referenced prior reforms including the Gramm-Leach-Bliley Act and debates involving legislators from United States Senate and United States House of Representatives, with input from exchanges such as NASDAQ OMX Group and New York Stock Exchange Group. Major market structure reports by entities like the Chicago Mercantile Exchange and comment letters from firms including Barclays and J.P. Morgan shaped rules addressing systems run by NYSE Euronext and trading venues influenced by technology companies such as Microsoft and Google.
Key Components and Rules
Regulation NMS contains multiple key provisions: the Order Protection Rule interrelates with execution practices at venues like IEX Group and Getco; the Access Rule prescribes fee and access ceilings relevant to operators including NYSE Arca and BATS Y-Exchange; the Sub-Penny Rule constrains pricing increments affecting market makers like Virtu Financial and broker-dealers such as Credit Suisse; and the Market Data rules govern consolidated feeds administered by entities analogous to Securities Information Processor networks used by Intercontinental Exchange. These provisions intersect with clearing entities like Depository Trust & Clearing Corporation and custody operations at Bank of New York Mellon.
Market Structure Impact and Functioning
Post-adoption, equity trading fragmented across national market system venues including NYSE Arca, Cboe BZX Exchange, IEX Group, and Aequitas Innovations. High-frequency trading firms exemplified by Two Sigma and Renaissance Technologies exploited co-location and latency advantages, affecting liquidity provision by traditional specialists at New York Stock Exchange Arca Options. Broker protocols at Charles Schwab Corporation and Fidelity Investments adjusted routing algorithms to comply with Order Protection while interacting with market makers such as Jane Street Capital. The rules altered interaction among institutional investors like BlackRock and Vanguard Group and retail platforms including Robinhood Markets.
Implementation and Compliance
Implementation required systems upgrades at exchanges like NASDAQ and NYSE Chicago, and compliance programs at broker-dealers such as Goldman Sachs and Morgan Stanley. Surveillance by the Securities and Exchange Commission and self-regulatory organizations like Financial Industry Regulatory Authority monitored best execution obligations for firms including Citigroup and Deutsche Bank. Technology vendors such as Thomson Reuters and Bloomberg L.P. supplied consolidated tape data, while clearing houses like Options Clearing Corporation adapted operational protocols. International coordination involved regulators including the Financial Conduct Authority and institutions such as the European Securities and Markets Authority.
Criticisms, Litigation, and Reforms
Critics from think tanks and academics associated with Harvard University, Massachusetts Institute of Technology, Princeton University, and University of Chicago argued Regulation NMS incentivized latency arbitrage exploited by firms like Citadel LLC and Virtu Financial. Litigation included suits naming exchanges and broker-dealers and discussions in courts where judges referenced precedents involving Supreme Court of the United States and appellate panels. Calls for reform involved policymakers in United States Senate Banking Committee and proposals advocated by market participants including IEX Group and academics from Columbia University and Stanford University, leading to later rulemakings and pilot programs by the Securities and Exchange Commission.
Economic and Empirical Evidence
Empirical studies by researchers affiliated with National Bureau of Economic Research, Wharton School, London School of Economics, and Yale University examined effects on spreads, liquidity, and execution quality for asset managers like PIMCO and BlackRock. Evidence documented mixed outcomes: some analyses found narrower quoted spreads for securities traded across venues like NYSE American and Cboe BZX Exchange, while others highlighted fragmentation costs borne by institutional traders including Goldman Sachs Asset Management and Morgan Stanley Investment Management. Research leveraged data from NYSE Arca and consolidated feeds to measure impacts on volatility during episodes such as the Flash Crash and compared outcomes across jurisdictions involving the Financial Conduct Authority.