Both the FTSE 100 and the FTSE 250 saw gains on Tuesday. The 100 added 0.4 percent to 6,381.8, while the 200 was 0.2 percent higher to 11,475.7.

The 100 was helped by gains in the mining sector after metals prices were up and on rumors that both Rio Tinto and BHP Billiton are thinking about bidding for aluminium manufacturer Alcoa. Rio Tinto added 2.5 percent to £27.53, while Billiton was 2.6 percent higher, to £10.67.

In the pharmaceuticals sector, GlaxoSmithKline gained 2.1 percent to £14.91 on a repeated “buy” rating from Collins Stewart. GSK has 10 new products ready to hit the market this year, with 31 at Phase III trials or better.

The real estate sector was lower on profit-taking and on less than admirable results from British Land in their fiscal third quarter. British Land dropped 3.6 percent to £16.19, while Liberty International fell 2.7 percent to £12.90 and Slough Estates was 1.5 percent lower to 771p. Liberty is scheduled to release its results on Wednesday.

British Energy was 3.3 percent lower to 410p after it said that one of its nuclear power plants will be closed until April.

London equities markets were lower on Monday, led down by the real estate sector. The FTSE 100 dropped 0.4 percent to 6,194.2 and the FTSE 250 was 0.3 percent lower to 11,156.

Despite the general losses, some sectors saw gains. Miners were up after a bad week last week. Anglo American was 1.6 percent higher to £23.68, helped by the possibility that it could sell some of its 42 percent stake in South African gold miner AngloGold. Xstrata added 2.2 percent to £23.14 after dropping 11 percent last week, while Lonmin gained 3.2 percent to £28.90.

In the energy sector, Cairn Energy was 3.3 percent higher to £17.25 on positive comments from Man Securities, which said that Cairn could see advances if the debut of Cairn India on the stock exchange in Mumbai on Tuesday is fairly successful.

Declines in the real estate sector were explained by nervousness among investors ahead of a meeting by the Bank of England, scheduled for Thursday, when the Bank will make its latest decision on interest rates. The sector was also hurt by a sector wide downgrade to “underweight” from HSBC. Liberty International dropped 1.5 percent to £13.45, Slough Estates fell 1.7 percent to 770p, and Hammerson was 2.5 percent lower to £14.97. British Land was down 2.9 percent to £16.04, while Land Securities dropped 3.2 percent to £22.10.

In London on Wednesday, the FTSE 100 closed up 0.3 percent to 6,007.5, the first time it has closed above 6,000 in five years. Meanwhile, the FTSE 250 was 0.5 percent higher to close at 9,858.6. Continued bid rumors and gains in the property sector were instrumental in the day’s advances.

Shares in property companies were up an the news that new rules on the introduction of tax-efficient property investment vehicles were less restrictive than they had been expected to be. Slough Estates gained 13.4 percent on the day to 685p, while Land Securities was up 12.9 percent to £20.80, British Land advanced by 11.9 percent to £13.00, and Hammerson added 9.2 percent.

BT Group gained 2.4 percent to 234½p on more intense rumors that a private equity consotium was going to bid, possibly offering as much as 265p per share. Elsewhere in the telecommunications sector, Cable & Wireless dropped 2.7 percent to 109¾p as bid rumors lessened in intensity.

Broadcaster ITV was up 9.4 percent to 650½p after it said it had rejected a bid from a consortium that included Apax Partners and Goldman Sachs, saying that the offer was not in the best interest of shareholders.

The London Stock Exchange dropped 3.3 percent to £11.38 when Credit Suisse downgraded it to “neutral” from “outperform”.