BlackRock, the world's largest asset manager, agreed to end its analyst survey program worldwide, as part of an agreement reached Wednesday with the New York Attorney General's office.
The agreement stems from an investigation by New York Attorney General Eric Schneiderman into the early release of Wall Street analyst sentiment, which can move markets.
BlackRock agreed to pay $400,000 for the cost of the investigation, but no fine or penalty, and to cooperate in any investigation related to the probe.
"BlackRock deserves credit for recognizing the need for reform when it comes to the dissemination of information that can move markets," Schneiderman said in a statement. He called the agreement "a major step forward in restoring fairness in our financial markets and ensuring a level playing field for all investors."
(Read more: The euro coulddisappear within 10 years: BlackRock)
The Analyst Survey Program asked many of the world's most prominent analysts at dozens of brokerage firms a series of questions related to the companies they were covering, according to the agreement.
BlackRock headquarters in New York City.Adam Jeffery | CNBC
Although BlackRock's position is that the purpose of the survey program was to quantify the analysts' publicly available insights, Schneiderman found evidence that the program's design allowed it to capture "non-public analyst sentiment that could be used to trade ahead of the market reaction to upcoming analyst reports," according to the agreement.
The analysts were surveyed on a quarterly or monthly basis, depending on where they were located geographically, and the program obtained hundreds of thousands of responses.
The U.S. surveys would ask analysts to answer questions on a scale of 1 through 9, and the responses were averaged, aggregated and converted into quantitative return forecasts.
The program was developed in 2003 by Barclays Global Investors, which BlackRock acquired in 2009.
When it was started, Scientific Active Equities, the quantitative investment group within BGI and now BlackRock, believed it could use the responses to "forecast" analysts' "next estimate revision," the agreement said.
(Read more: BlackRockstrategist Russ Koesterich says to buy stocks)
An internal SAE document also revealed the program's success depended in part on a "willingness to really give us advance information," according to Schneiderman's findings.
"We're trying to front-run" recommendations, another internal document said.
The timing of the questionnaires also made them susceptible to obtaining advance information, the agreement said, including "targeted survey waves" just before covered companies' "heavy earnings" seasons.
Brian Beades, a BlackRock spokesman, told Reuters that the language in the internal memos is "totally inconsistent with the standards by which BlackRock does business."
