Goldman Sachs top M&A adviser with $623bn worth of deals so far this year.
In the past, US authorities have targeted Morgan Stanley and JPMorgan in recruitment probes.
Wells Fargo allegedly gave loans to minority residents and minority communities in LA.
Equity underwriting, among Wall Street's most profitable activities, commands 40% pretax profit margin.
FHFA says hefty withdrawals from federal housing finance programme can endanger system if big borrower defaults.
Settlement resolves investors' claims to buyback residential mortgage-backed securities.
Private equity firm Onex and Canada Pension Plan Investment Board to exit their investment in Gates.
Porat's comments follow Blythe Masters' decision to end 27-year career at JPMorgan.
RBS, Barclays, UBS, JPMorgan, Citigroup, Credit Suisse, Julius Baer and Zurich Cantonal Bank being probed.
Citi was planning to buy back $6.4bn of shares by the beginning of 2015 and increase dividends by 5%.
Barclays advises investors to take profits before election results.
Sales of collateralised loan obligations hit $20.5bn this year.
Sanctions to hit Russian M&A activity typically brokered by advisors in London.
Hayman Capital Management believes investors can still profit by lending to Argentina.
Citigroup to disclose costs tied to urban-centric strategy later this year.
Deal would make DBS Asia's sixth or seventh largest private bank.
US investment banking giant Citigroup sees lower revenues and income in fourth quarter.
Miami filed suit against Bank of America, Citigroup and Wells Fargo last week.
Investigations into mortgage securities sold by RBS and Credit Suisse making progress.
SEC said ML misled investors about mortgage securities it structured and sold
SFO hopes to learn "any lessons that can be applied to future cases".