Technical Report for September 22, 2026

1. Main Technical Diagnosis

September 22 produced a mixed but internally informative session. The S&P 500 closed almost exactly unchanged at 7,764.64, while the Nasdaq-100 advanced 0.82% to 30,732.40 and the Nasdaq Composite rose 0.45% to a new record close of 27,244.28. The Russell 2000 gained 0.51% to 2,889.92.

The central feature of the session was therefore not broad index acceleration but continued leadership from large-cap growth and technology. Nasdaq-100 breadth was positive, with 71 of 99 measured members higher, while the S&P 500 was much more balanced, with 248 of 498 measured members advancing.

The S&P 500 remains above all four principal moving averages. However, longer-horizon participation remains materially weaker than the index itself: a September 22 Bloomberg-based breadth reading placed only about 48% of S&P 500 constituents above their 200-day moving averages.

A broad-universe McClellan Oscillator remained below zero at −10.15, although it improved from approximately −21.8 in the prior session. Across roughly 4,747 qualifying U.S. common stocks, 64 securities made new 52-week highs and 158 made new lows.

Volatility moved in the opposite direction from the previous session. VIX fell from 14.87 to 14.21 and VXN eased from 20.39 to 20.18.

Technical diagnosis: the price trend remains constructive and growth leadership extended, but participation remains narrow enough to prevent a fully confirmed broad-market breakout signal.

2. Core Technical Dashboard

3. S&P 500 Moving Averages

Sequence:

price > 20-day > 10-day > 50-day > 200-day

The index remains above all major trend references. The short-term structure is positive, while the unusually small separation among the 10-, 20- and 50-day averages indicates a market that has advanced without developing a particularly broad intermediate trend.

4. Market Breadth

S&P 500:

• 248 of 498 measured constituents advanced.
• The session was approximately balanced at the constituent level.

Nasdaq-100:

• 71 of 99 measured constituents advanced.
• Participation was meaningfully stronger than in the S&P 500.

Confirmed long-horizon breadth:

• approximately 48% of S&P 500 constituents were above their 200-day moving averages.

A directly comparable and independently confirmed September 22 reading for the percentage above the 20-day and 50-day moving averages was not available in the approved source set. No estimate is inserted.

Broad-universe McClellan Oscillator:

• −10.15, improving from roughly −21.8.

Interpretation:

Breadth improved at the margin, but the negative McClellan reading and sub-50% long-term participation remain inconsistent with the strength of the Nasdaq leadership and the S&P 500’s proximity to record territory.

5. New 52-Week Highs and Lows

Across approximately 4,747 qualifying U.S. common stocks:

• New highs: 64
• New lows: 158
• Net spread: −94

Nasdaq recorded at least 38 new 52-week highs during the session in Reuters market reporting.

The broad high-low balance therefore remained negative.

6. Momentum

The S&P 500 14-day RSI is approximately 59.27.

This is above the neutral 50 level but below the conventional overbought threshold of 70.

Momentum remains constructive without an overbought signal.

7. Volume

Aggregate U.S. exchange volume was approximately 17.9 billion shares, versus a 20-session average of approximately 16.3 billion.

The session therefore occurred on above-average turnover.

Volume was not accompanied by broad S&P 500 participation, reinforcing the distinction between strong activity and broad directional confirmation.

8. Volatility

The previous session’s unusual rise in volatility alongside higher technology prices partially normalized.

VIX declined materially, while VXN eased only modestly. Nasdaq volatility therefore remained elevated relative to broad-market volatility even as absolute stress indicators softened.

9. Key Technical Levels

Nearest S&P 500 support:

• 7,669 — 20-day moving average
• 7,646 — 10-day moving average
• 7,626 — 50-day moving average
• 7,192 — 200-day moving average

Nearest resistance:

• 7,799–7,817 — prior record closing/intraday zone

The S&P 500 remains immediately below the prior record zone.

10. Principal Divergences

Price versus breadth: The index remains near record territory while only about 48% of constituents are above their 200-day moving averages.

Nasdaq versus S&P 500: Nasdaq-100 gained 0.82% while the S&P 500 was flat.

Headline indices versus new highs/new lows: New lows continued to exceed new highs across the broad U.S. universe.

Price versus McClellan: The oscillator improved but remained negative.

Nasdaq versus volatility: VXN declined only modestly and remained above 20 despite continued Nasdaq gains.

11. Technical Regime

Short term: bullish. The S&P 500 remains above its 10- and 20-day moving averages and RSI remains above 50.

Medium term: neutral. Price remains constructive, but constituent breadth remains materially weaker than headline index levels.

Long term: bullish with narrow participation. The S&P 500 is almost 8% above its 200-day moving average, but fewer than half of constituents are above their own 200-day averages.