Stocks sink in whipsaw session, S&P 500 posts first monthly decline since January: Oct 1
b'Stocks sank on Thursday in the final session of September and the third quarter, with stocks extending a weeks-long streak of volatility as concerns over inflation, the economic backdrop and debates in Washington over a host of measures weighed on equities.\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'