More S&P 500 stocks get their groove back, Detrick says

What happened

More than 75% of S&P 500 stocks traded above their 20-day moving average as of Oct. 29, the highest share since April. The share above the 50-day average rose to 65.8% from around 20% in late September.

Confirmed

Global impact / market context

A broader rally means the index's gains are less dependent on a few large companies. When most stocks participate, a single weak heavyweight hurts less, and investors holding diversified baskets may see steadier returns than those concentrated in a handful of names.

Analyst inference

The benchmark was at 7,633.13 on Thursday, below its 50-day average of 7,698.14 and down 1.13%. So breadth improved even as the index stayed range-bound. That gap suggests buying spread to smaller stocks while large names lagged.

Analyst inference

What to watch

1. Watch whether the share of S&P 500 stocks above their 20-day moving average holds above 75%, the highest level since April, or fades back as it did after earlier peaks. Confirmed
2. Track the 50-day and 200-day participation rates, at 65.8% and 65.4%, to see whether the recovery from the low 40s continues or stalls near current levels. Proposed
3. Compare the benchmark's position against its 50-day average of 7,698.14; a move back above would suggest improving breadth is feeding through to the index itself. Analyst inference

Evidence

• seekingalpha.com