Top 10 Contributors
S&P 500: 7541.40 | 📉 Down (-0.54%)
Market Structure Score
60/100
Neutral Structure
🔁 Regime shift: Neutral → Broad Bull
Institutional positioning became increasingly defensive as participation weakened and investors favored more resilient areas of the market. Internal confirmation remains limited, reducing confidence in the durability of the current market character.
The internal backdrop remains balanced, with improving conditions offset by pockets of continued weakness. The Market Structure Score of 60/100 reflects low confidence in this assessment.
⬥ 346 of 502 stocks advanced (▲68.9%)
⬥ 150 stocks declined (▼29.9%)
⬥ 6 stocks unchanged
⬥ Participation improved versus recent sessions.
⬥ Participation quality weakened.
Leadership continued to rotate across sectors, indicating capital was being reallocated rather than concentrated in a single leadership group. However, weakening participation reduces confidence that the rotation represents a durable bullish signal.
Rapid leadership rotation suggests institutional conviction remains fluid. Breadth continues to lag headline index performance. Participation has weakened across the broader market. Decliners continue to outnumber advancers. Should these conditions deteriorate further, confidence in the current market assessment would likely weaken.
Meaningful improvement in participation and internal confirmation will be needed before confidence can recover. Failure to improve would leave the market vulnerable to additional weakness.
The weight of the internal evidence continues to support a defensive rotation market environment with low confidence. While short-term price fluctuations are inevitable, sustained improvement in participation and leadership would reinforce the current assessment, whereas renewed deterioration in market internals would warrant a more defensive interpretation.
Market Signals
▶ ✅ Strong participation across index constituents.
▶ ✅ Leadership was broadly distributed across the market.
▶ 🔄 Leadership rotation accelerated.
▶ 🔄 Elevated dispersion suggests healthy sector rotation.
▶ 💪 Individual stock moves carried above-average conviction.
▶ 🚀 Participation expanded sharply from the previous session.
▶ ✅ Participation exceeded capitalization leadership.
▶ ⚠️ A small group of larger losers weighed disproportionately on returns.
Top Contributors (>0.01%)
| Ticker | Return | Contribution | Share | Impact_Efficiency | Rank |
|---|---|---|---|---|---|
| AMZN | 2.20% | 0.08% | 3.79% | 0.038059 | 1 |
| BRK-B | 2.51% | 0.03% | 1.53% | 0.013472 | 2 |
| WMT | 3.38% | 0.03% | 1.22% | 0.007925 | 3 |
| GE | 4.63% | 0.02% | 1.11% | 0.005278 | 4 |
| V | 2.88% | 0.02% | 1.08% | 0.008265 | 5 |
| MA | 3.15% | 0.02% | 0.86% | 0.006024 | 6 |
| COST | 2.79% | 0.02% | 0.84% | 0.006624 | 7 |
| TSLA | 1.00% | 0.02% | 0.82% | 0.018065 | 8 |
| HD | 3.63% | 0.02% | 0.78% | 0.004739 | 9 |
| IDXX | 21.85% | 0.02% | 0.69% | 0.000692 | 10 |
| JPM | 1.05% | 0.01% | 0.61% | 0.012866 | 11 |
| WFC | 2.99% | 0.01% | 0.52% | 0.003877 | 12 |
| HWM | 6.91% | 0.01% | 0.48% | 0.001534 | 13 |
Definitions:
Contribution – The weighted impact of a stock’s return on the overall index move
(weight × return). This reflects how much each stock actually moved the index.
Share – The proportion of total index movement attributable to a given stock.
Higher values indicate outsized influence relative to peers.
Impact Efficiency – The ratio of contribution to return, highlighting how effectively
a stock’s price move translates into index impact (primarily driven by index weight).
