During the weekend, several new articles appeared in British papers reporting that BlackRock Inc. is closing in on a deal to acquire Barclays Global Investors, the parent company of iShares, in a transaction worth up to US$13 billion.

But not all the reports were as definitive as the one coming out of the US late last week. Pensions & Investments magazine, on its Web site, broke the news late Friday afternoon after markets had closed in the US. It quoted unnamed sources as saying that the groundwork for a deal was in place and that an announcement would be forthcoming.

The story also had estimates that a BlackRock purchase of BGI would surpass $10 billion. (See related story here.)

However, in a story over the weekend, a report out of London by the Financial Times said that Barclays isn't expected to reach a decision until early this week on who will purchase its asset management division.

Also, more details are leaking out about the complexity of such a transaction.

Barclays is expected to acquire a stake of 20% in BlackRock. Meanwhile, BlackRock is likely to rely on financing from Middle Eastern sovereign wealth funds. And Barclays’ president, Bob Diamond, is supposedly rumoured to be considering joining the board of the US-based BGI.

Larry Fink, BlackRock’s founder and chief executive, met the Kuwait and Qatar Investment Authorities last week to seek funding, according to the Financial Times.

The deal, if confirmed, would set a record for the acquisition of an asset management company, dwarfing the US$ 8.5 billion paid by BlackRock for Merrill Lynch’s fund arm in 2006.

It would also trigger a payout of US$ 585 million for the 200 employees of BGI with stakes in the company, with Diamond set to receive around US$ 30 million.

Although weekend press reports suggested that a new deal is close to being reached, Barclays has another 10 days until the June 18 deadline for seeking further bids for iShares and other related businesses.

This was set as part of the US$ 4.2 billion May agreement to sell iShares to CVC Capital Partners. CVC will receive a US$ 175 million break fee if Barclays concludes a transaction with a third party, as now seems likely.

A BlackRock acquisition of BGI would mean intensifying competition in the fixed-income ETF market, according to some observers. Last week Pimco, BlackRock’s biggest riva,l initiated its ETF range with a 1- to 3 -ear US Treasury bond tracker, undercutting the equivalent iShares fund with a 9 basis point annual fee.

-- IndexUniverse.eu's Paul Amery submitted this report. IU.com's Murray Coleman also contributed.