Top 10 Contributors
S&P 500: 7520.36 | 📈 Up (0.02%)
Market Structure Score:
0/3
— Weak / Fragile Structure
🔁 Regime shift: Narrow / Fragile → Neutral
Market Summary
▶ The market exhibited a moderately concentrated structure.
▶ Primary leadership came from
AMZN (2.47%), META (3.74%), AAPL (0.82%), MU (3.63%), TSLA (1.56%).
▶ Market participation was mixed, with internals showing a balanced but less decisive structure. Leadership was moderately concentrated, with the top five contributors driving 23.7% of overall movement. Risk appetite remained mixed, with selective participation driving overall index behavior.
▶ Market breadth remained at 236 of 502 stocks advancing (▲ 47.0%) while 260 declined (▼ 51.8%). (6 unchanged)
Market Signals
▶ ⚠️ Narrow rally — weak participation
▶ 🔄 Leadership rotation increasing
Top Contributors (>0.01%)
| Ticker | Return | Contribution | Share | Impact_Efficiency | Rank |
|---|---|---|---|---|---|
| AMZN | 2.47% | 0.10% | 8.01% | 0.042017 | 1 |
| META | 3.74% | 0.09% | 6.90% | 0.023936 | 2 |
| AAPL | 0.82% | 0.05% | 4.09% | 0.064860 | 3 |
| MU | 3.63% | 0.03% | 2.67% | 0.009542 | 4 |
| TSLA | 1.56% | 0.03% | 2.06% | 0.017148 | 5 |
| APP | 10.42% | 0.02% | 1.58% | 0.001967 | 6 |
| LLY | 1.71% | 0.02% | 1.45% | 0.011033 | 7 |
| PG | 3.17% | 0.02% | 1.36% | 0.005564 | 8 |
| HD | 2.35% | 0.01% | 0.95% | 0.005253 | 9 |
| UNH | 1.90% | 0.01% | 0.80% | 0.005489 | 10 |
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).
