Oct. 29 (Bloomberg) -- The following companies' shares may have unusual price changes in Italy. Stock symbols are in parentheses and prices are from the previous close.

Italy's S&P/MIB Index fell for a sixth day, dropping 464, or 2.4 percent, to 18,628.

Alleanza Assicurazioni SpA (AL IM): Assicurazioni Generali SpA's life unit is scheduled to release its third-quarter results. The shares declined 4.3 cents, or 0.9 percent, to 4.65 euros.

Indesit Co. (IND IM): Europe's third-largest home-appliances maker is scheduled to release third-quarter earnings. The shares gained 22 cents, or 3.8 percent, to 5.92 euros.

Intesa Sanpaolo SpA (ISP IM) and UniCredit SpA (UCG IM): Italy's government may buy the stakes of some of its lenders in the Bank of Italy to support the companies and prevent hostile takeovers, la Repubblica reported, without saying how it got the information.

Intesa fell 19.8 cents, or 8.4 percent, to 2.17 euros. UniCredit dropped 23 cents, or 13 percent, to 1.54 euros.

Separately, Citigroup Inc. cut its price estimates on Italian banks to take into account a further deterioration in the economy.

Lottomatica SpA (LTO IM): the manager of Italy's national lottery appointed Barclays Capital, Intesa, Mediobanca and UniCredit to arrange a five-year senior unsecured loan facility for a total amount of 300 million euros ($381 million) to refinance existing debt.

The shares added 46 cents, or 2.9 percent, to 16.55 euros.

Luxottica SpA (LUX IM): The world's biggest eyeglasses maker said third-quarter net income fell 6.9 percent and that 2008 is a ``particularly difficult year.''

UBS AG cut its price estimate on the stock to 20.5 euros from 22.5 euros and kept a ``buy'' recommendation. The shares fell 28 cents, or 1.9 percent, to 14.28 euros.

Mediobanca SpA (MB IM): UBS AG cut its price estimate on Italy's biggest publicly traded investment bank to 9 euros from 10.75 euros and kept a ``neutral'' recommendation. The shares fell 9 cents, or 1.1 percent, to 8.51 euros.

Saipem SpA (SPM IM): Europe's biggest oil-field-services contractor is due to release third-quarter results. Royal Bank of Scotland cut its price estimate on the stock to 16.5 euros from 28.5 euros. The shares rose 79 cents, or 6.4 percent, to 13.22 euros.

Snam Rete Gas SpA (SRG IM): The owner of Italy's natural-gas pipeline network is scheduled to report third-quarter earnings. The shares gained 7 cents, or 1.7 percent, to 4.08 euros.

STMicroelectronics NV (STM IM): Europe's largest semiconductor maker is holding a conference call on its results. The company had a third-quarter net loss of $289 million and forecast a drop in fourth-quarter revenue of as much as 8 percent as the economic slowdown hurts demand for mobile phones and consumer electronics.

Revenue was ``disappointing,'' Citigroup Inc. analysts including Glen Yeung wrote in a note. The shares rose 12 cents, or 2 percent, to 6.20 euros.

To contact the reporter on this story: Steve Scherer in Rome at scherer@bloomberg.netFrancesca Cinelli in Milan at fcinelli@bloomberg.net

Last Updated: October 29, 2008 03:35 EDT