Looking at the S&P 500 weekly chart, it continues to follow the same pattern as in early 2008. There is a similar false recovery above medium-term resistance at 1200 (compared to 1400 in 2008) followed by reversal below the new support level. Also, a similar 63-day Twiggs Momentum peak below the zero line warns of a strong primary down-trend.
* Target calculation: 1100 – ( 1300 – 1100 ) = 900