Following a week of gains the FTSE shed some value to end the day down some 19 points on its opening ...
However, the value shedding among UK plc's top 100 stocks was not reflected in the mid-caps, with the FTSE 250 index gaining 46.8 points today to end the week at 5,450.9 points.
The FTSE Small Cap and TechMARK indices were also both up by close today.
Monday morning could see the past week's resilience change following news reports that the outbreak of anthrax in the US - perhaps linked to last month's terrorist activities in the US - has spread to a third person, news that has depressed US market sentiment despite an earlier bullish mood.
That mood was caused by an unexpectedly positive set of figures in a key US consumer confidence indicator released earlier today.
Further reports of anthrax over the weekend could dampen market spirits somewhat.
Looking back towards the FTSE 100 constituents, today's gainers included two stocks recently caned by uncertain futures.
Record company EMI added 12p to 278p and Cable&Wireless added 10p to 294p.
Energy also had a good day as National Grid added 27.5p to 488.75p and Scottish and Southern Energy added 22p to 672p.
Diageo gained 22p to 675p after recent days' selloffs of the stock was turned on its head by bargain hunters.
Among the losers it was a day of red boards for software companies, and this played out in the FTSE 100 with Sage taking a further battering as investors continue to wonder how the events of 11 September and worsening economies will hit its core market of smaller and medium sized businesses.
Sage lost 12.5p to 181.75p by close today.
Wireless telecoms also continued the meltdown story of the past two days, as Vodafone and BT both recorded continued losses following this week's release of subscriber figures by the latter and realisation that the former had gained nearly 30% during the past month.
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