Trading on the LSE’s electronic platform was shut down this morning on one of its busiest days of the year.

The timing of the shutdown is unfortunate for the LSE, which is facing increased competition from rival trading platforms such as Turquoise, a Europe-wide platform set up by a number of the world’s biggest investment banks.

Another rival, Chi-X, claims to have taken over 15 percent of trading in FTSE 100 stocks recently.

To counteract the challenge, the LSE slashed trading fees at the start of this month in response to a partial launch of Turquoise, which is not due to start trading proper until October.

Today’s debacle was thought by the BBC’s Business Editor Robert Peston, to have serious consequences for the exchange. A great deal of money was tied up in the system, money that could not be used in a rapidly rising market.

More financial journalists have been giving their top tips for shares on the London Stock Exchange during 2007. Here’s a list of their suggested buys :

Lucy Farndon : Royal Bank of Scotland.
Brian O’Connor : Ark Therapeutics.
Alex Brummer : Prudential.
James Ashdon : Vodafone.
Geoff Foster : Redstone.
Ian Lyall : Oakdene Homes.
Tamsin Brown : Rank.
Manfreda Cavazza : Tesco.
Karl West : ICI
Sam Fleming : Geiger Counter.

All of the above are from the Mail Group of newspapers.

The UK Mail on Sunday has five top share tips for British investors.

Pointing out that 2006 was a much better year than predicted, the runes say that the coming 12 months will be “rocky”. However, we’re assured that the following stocks will perform well whatever the state of the markets :

1. Barclays : This is one of the world’s top banks with a strong High Street network of retail branches, as well a top flight investment bank. It also boasts a very successful fund management division with fast-growing international business interests. Its shares are rising because it has become the subject of a number of takeover attempts in recent times.

2. Biffa : This company collects, treats and recycles rubbish (garbage) for 80,000 customers worldwide. Biffa has been quoted on the London Stock Exchange since October 2006. Prior to its IPO it was part of Severn Trent Water company. The sector is a buoyant one and, it’s believed, Biffa’s management team will make the most of it.

3. Halfords : While the retail sector is expected to be flaky for most businesses, Halfords may well be the exception. It’s the largest seller of car and bycycle parts in the UK and has benefited from a raft of safety legislation in recent years. Analysts expect it to perform well in 2007.

4. CONCATENO : This company is involved in testing for drugs and alcohol — a growing service across the board — advising companies from building to shipping. It works with a number of public sector bodies. It is expected to come into its own this year and trades on the AIM (Alternative Investment Market).

5. Afren : Afren is an oil and gas exploration company run by a former head of OPEC. Its mission is in Africa and is seen as helping rather than exploiting local resources. Many experts think its time has come and it should rise well above its 57p share price in the year ahead.

Writing in The Times (London) today, Anatole Kaletsky reminds us that “the financial hurricane season” is now upon us.

“Nearly all the greatest financial accidents — the Wall Street crashes of 1929 and 1987, Nixon’s closure of the Bretton Woods gold window in 1971, the Asian currency crisis of 1997, the Mexican and Russian defaults, the attack on the French franc in 1993, the sterling devaluations of 1949, 1976 and 1992 — have occurred between late August and October”.

On Wall Street buyers generally hold off until Hallowe’en, on October 31, while selling is automatic for various reasons: “…selling of equities is partly a passive phenomenon, since portfolios have to be liquidated when their owners die or cash retirement cheques or make insurance claims.

“These liquidations happen steadily through the year, regardless of seasons. Buying, on the other hand, requires conscious decisions and investors are less likely to make these when they and their brokers are away on holiday.”

So the next couple of months will be crucial for financial markets. Have yourself a safe financial hurricane season.