SEC

Top end of shares range would see Twitter raise $1.75bn.

The Securities and Exchange Commission awarded $150,000 to a whistleblower

Trading in derivative contracts linked to benchmark Nasdaq 100 index delayed for about 45 minutes.

NYTimes claims JPMorgan negotiating with prosecutors on potential settlement over Madoff investigation.

Twitter has an estimated 15 million users in India.

In a bid to highlight what a threat DDoS attacks are, Google Ideas has teamed up with Arbor Networks to bring the data to life.

A technical system malfunction in August 2012, caused the prices of 140 NYSE-listed stocks listed to fluctuate wildly

The Hong Kong Monetary Authority said it is speaking to banks over foreign exchange market manipulation allegations

Twitter shuns tech-friendly Nasdaq for flotation after Facebook IPO debacle.

Twitter gave away little detail over advertising model in SEC filing ahead of IPO.

BlackBerry co-founders Mike Lazaridis and Douglas Fregin consider takeover bid, revealed by SEC filing.

Ironfire Capital, Gamco Investors and Sica Wealth Management predict Twitter valuation will soar.

Rizvi and his clients hold a 15% stake in the San Francisco-based firm.

Twitter has significantly grown its revenues from just $28m in 2010 to $317m at 2012-end, according to its IPO prospectus.

Whistleblowing and Retaliation author says not all 'rats' keep firms honest.

US judge grants defence request in a bid to not indirectly influence court case.

Reuben Guttman says the UK could learn a lot from the US system that protects and rewards whistleblowers

Honda rider and championship leader Marc Marquez takes sixth pole.

Marc Marquez took the lead for the qualifying of the 2013 San Marino Grand Prix qualifying. Find out how to follow the qualifying in the UK

US central bank expected to taper QE by several billion dollars.

Twitter confirms expectations that it has filed for an IPO to take the company public.

Investigation finds spreadsheet linking bank's appointments to specific deals.

Possible BATS Direct Edge merger to create second largest stock market operator in US after NYSE.

Nasdaq suspends trading in all listed securities after bug crashes system and SEC convenes forum to strengthen technology.

Legal woes mount for JPM as it faces several lawsuits including energy market manipulation

BHP Billiton allegedly breached US anti-corruption laws under its hospitality and sponsorship programme at Beijing Olympics

Must also pay $4.1m in a settlement related to dealings as the head of the Hollinger media empire

Court filing shows bank under 'parallel investigations' by civil and criminal divisions of US Attorney's Office.

UBS misled investors about a risky mortgage-backed bond transaction in 2007.

The Department of Justice, SEC and the New York Attorney General's office intend to file charges against BofA