April 1 (Reuters) - The following are the top stories in

the Financial Times. Reuters has not verified these stories and

does not vouch for their accuracy.

Headlines

- Rocket to buy Mr Cooper ( COOP ) in $9.4 billion deal to create US

mortgage giant

- OpenAI secures $300 billion valuation after $40 billion

SoftBank-led funding round

- British Steel's auditors warn of 'material uncertainty' as

it battles to survive

- Aston Martin to raise more than 125 million pounds amid US

tariff threat

Overview

- Rocket Companies ( RKT ) said on Monday it would buy home

loan service provider Mr Cooper Group ( COOP ) for $9.4 billion,

boosting its mortgages business in its second big deal this

month to take advantage of a rebound in U.S. housing demand.

- OpenAI said on Monday it would raise $40 billion in a new

funding round led by SoftBank Group at a $300 billion

valuation to advance AI research, expand computational

infrastructure and enhance its tools.

- British Steel's auditor has warned the company faces

"material uncertainty" and requires "further future funding" if

it is to survive.

- Aston Martin will raise more than 125 million

pounds ($161.45 million) through funding from its chairman and

the sale of its stake in his Formula One team as it battles

ballooning losses and tariffs imposed by U.S. President Donald

Trump.

($1 = 0.7742 pounds)

(Compiled by Bengaluru newsroom)