Credit Suisse, Citigroup and Bank of America Merrill Lynch look to be the big winners from this week's round of mega M&A in the US telecoms and technology sectors, working across two deals worth over $115 billion combined.

The three banks are advisers to US semiconductor company Avago Technologies on its bid to acquire industry peer Broadcom in a cash-and-stock deal valued by Dealogic at $36.6 billion. Deutsche Bank and Barclays are also advising Avago, with JP Morgan and Evercore Partners representing the target, according to the data provider.