The S&P 500 extended losses over rising rate worries. The fall below 4640 invalidates the latest rebound and indicates that sentiment is still downbeat.
Below the psychological level of 4600, 4540 is key support near last December’s lows on the daily chart. A bearish breakout would trigger a deeper correction towards 4400, the origin of the October rally.
An oversold RSI may cause a limited rebound. Nonetheless, the bulls need to clear offers around 4675 and then 4745 to gain momentum.