The S&P 500 broke through 3 key technical levels today

There’s no clear fundamental catalyst for the weakness in the S&P 500 today but three technical levels have given way.

1. The 61.8% retracement of the Aug-Sept rally
2. The 100-dma
3. The April-August trendline

S&P 500 technical analysis

Keep an eye on those levels on a closing basis. If they break a test of the Aug low and 200-day moving average may be in order.