For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window

Sept 30 (Reuters) -The UK shares started the week on a lower note, as gains in commodity stocks were offset by a sell-off in Aston Martin, as the carmaker tumbled to the bottom of mid-cap stocks following a profit warning.

Both the FTSE 100 index .FTSE and the domestically-focused FTSE 250 midcap index .FTMC dipped 0.1% by 0715 GMT.

The blue-chip FTSE 100 is poised for its first monthly loss in three months but is on track to secure its fifth consecutive quarter of gains. In contrast, the FTSE 250 is set to report a rise for September.

Aston Martin AML.L warned of lower annual core profit and said it no longer expects to achieve positive free cash flow in the first half, citing supply chain disruptions and weakness in China. The luxury carmaker slipped 12.5%, taking the broader automobiles and parts index .FTNMX401010 3.8% lower.

Rightmove RMV.L rejected a sweetened $8.29 billion takeover proposal from Australian property listing firm REA Group REA.AX, citing undervaluation. The real estate portal lost 4%.

Industrial metal miners .FTNMX551020 climbed 2% while the heavyweight oil and gas .FTNMX601010 shares added 1.1%, as prices of most commodities gained on increased demand prospects. MET/L O/R

Meanwhile, survey showed British business confidence ebbed slightly this month after reaching an eight-year high in July and August, as concerns about the broader economic outlook rose to a six-month high.

British house prices rose by a higher-than-expected 0.7% in September from August, with the annual growth rate hitting 3.2%, the fastest pace since November 2022.

Reporting by Khushi Singh in Bengaluru; Editing by Eileen Soreng

 For related prices, Reuters users may click on - * UK stock report .L FTSE index: 0#.FTS6 techMARK 100 index: .FTT1X FTSE futures: 0#FFI: Gilt futures: 0#FLG: Smallcap index: .FTSC FTSE 250 index: .FTMC FTSE 350 index: .FTLC Market digest: .AD.L Top 10 by vol: .AV.L Top price gainers: .NG.L Top % gainers: .PG.L Top price losers: .NL.L Top % losers: .PL.L * For related news, click on - * UK hot stocks: HOT and GB Wall Street: .N Gilts report: GB/ Euro bond report GVD/EUR Pan European stock report: .EU Tokyo stocks: .T HK stocks: .HK Sterling report: GBP/ Dollar report: USD/ * For company prices, click on - * Company directory: UKEQ By sector: FTAX * For pan-European market data, click on - * European Equities speed guide................ EUR/EQUITY FTSE Eurotop 300 index........................... .FTEU3 DJ STOXX index................................... .STOXX Top 10 STOXX sectors........................ .PGL.STOXXS Top 10 EUROSTOXX sectors................... .PGL.STOXXES Top 10 Eurotop 300 sectors.................. .PGL.FTEU3S Top 25 European pct gainers.................... .PG.PEUR Top 25 European pct losers..................... .PL.PEUR