LONDON -- After ending last week positively, the FTSE 100 (FTSEINDICES:^FTSE) has gone on to reach a five-year intraday high today of 6,552 points, beating its previous record of 6,534 set on 12 March. At the time of writing, it's down a bit from that at 6,547, but that's still 0.4% up on the day. Support today has come from the banks, with gains seen at HSBC Holdings and Barclays, and from a rise of about 2% in the mining sector.

But it's not all sunshine in the markets today. Here are two members of the various indexes on the way down.

G4S
G4S shares have plunged 13.9% to 263 pence today, wiping out the gains of the past 12 months, after the security firm warned of poor trading in Europe. Profit margins will now be lower than previously expected, largely due to European conditions, but also because of pricing pressure in the U.K.

But on the upside, overall revenue for the quarter to March 31 was up 7.5% on the same period last year, with overall organic growth of 6% (12% in developing markets and 4% in developed markets).

Quindell Portfolio
The Quindell Portfolio share price is up more than 75% over the past 12 months but has been falling back a little lately. And today, despite expectation-busting results for the year to Dec. 31, shares in the software and consultancy firm have dipped a further 10.4% to 11.9 pence.

Quindell, which serves the insurance, telecommunications, and related sectors, turned in a headline 904% rise in revenue to 137.6 million pounds and a 915% boost in pre-tax profit to 41.2 million pounds -- but it was the firm's first year of serious sales and profit following a period of partnership and acquisition.

Finally, reliable dividends can more than compensate for the day-to-day ups and downs of share prices. So how about a company that's offering a 5.7% yield and could be set for some nice share-price appreciation, too? It's the subject of our brand-new report "The Motley Fool's Top Income Share For 2013," which you can get completely free of charge -- but it will only be available for a limited period, so click here to get your copy today.

Alan Oscroft has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.