Top 10 Contributors
S&P 500: 7405.73 | 📈 Up (0.37%)
Market Structure Score:
1/3
— Weak / Fragile Structure
🔁 Regime shift: Neutral → Narrow / Fragile
Market Summary
▶ The market exhibited a highly concentrated structure.
▶ Primary leadership came from
MU (9.87%), NVDA (1.73%), INTC (11.19%), AVGO (2.82%), TSLA (4.59%).
▶ Index performance masked relatively weak participation, with gains concentrated in a smaller subset of leadership names. Leadership remained highly concentrated, with the top five contributors accounting for 30.9% of total index movement. Risk appetite appeared selective, with institutional flows concentrated in index-heavy leadership rather than broad participation.
▶ Market breadth remained at 181 of 502 stocks advancing (▲ 36.1%) while 320 declined (▼ 63.7%). (1 unchanged)
Market Signals
▶ ⚠️ Concentration spike — leadership narrowing
▶ ⚠️ Narrow rally — weak participation
▶ 🔄 Leadership rotation increasing
Top Contributors (>0.01%)
| Ticker | Return | Contribution | Share | Impact_Efficiency | Rank |
|---|---|---|---|---|---|
| MU | 9.87% | 0.17% | 9.21% | 0.017208 | 1 |
| NVDA | 1.73% | 0.14% | 7.64% | 0.081569 | 2 |
| INTC | 11.19% | 0.09% | 4.89% | 0.008055 | 3 |
| AVGO | 2.82% | 0.09% | 4.66% | 0.030490 | 4 |
| TSLA | 4.59% | 0.08% | 4.50% | 0.018065 | 5 |
| AMD | 5.14% | 0.07% | 3.65% | 0.013094 | 6 |
| AMAT | 8.64% | 0.05% | 2.87% | 0.006111 | 7 |
| LRCX | 6.98% | 0.05% | 2.44% | 0.006447 | 8 |
| KLAC | 9.27% | 0.04% | 2.16% | 0.004289 | 9 |
| LLY | 1.57% | 0.02% | 1.16% | 0.013687 | 10 |
| SNDK | 5.30% | 0.02% | 1.15% | 0.003988 | 11 |
| CSCO | 2.06% | 0.02% | 0.88% | 0.007886 | 12 |
| GLW | 5.61% | 0.01% | 0.72% | 0.002368 | 13 |
| XOM | 1.22% | 0.01% | 0.65% | 0.009757 | 14 |
| STX | 3.46% | 0.01% | 0.58% | 0.003100 | 15 |
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).
