Top 10 Contributors
S&P 500: 7445.72 | 📈 Up (0.14%)
Market Structure Score:
0/3
— Weak / Fragile Structure
🔁 Regime shift: Strong but Concentrated → Neutral
Market Summary
▶ The market exhibited a broad-based structure.
▶ Primary leadership came from
AAPL (0.91%), AMZN (1.30%), IBM (12.43%), MU (4.11%), SNDK (10.75%).
▶ Market participation was mixed, with internals showing a balanced but less decisive structure. Leadership breadth improved, indicating a healthier distribution of flows across the market. Risk appetite remained mixed, with selective participation driving overall index behavior.
▶ Market breadth remained at
286 of 502 stocks advancing (▲ 57.0%) while 210
declined ( ▼ 41.8%). (6 unchanged)
Top Contributors (>0.01%)
| Ticker | Return | Contribution | Share | Impact_Efficiency | Rank |
|---|---|---|---|---|---|
| AAPL | 0.91% | 0.06% | 4.66% | 0.064860 | 1 |
| AMZN | 1.30% | 0.05% | 4.33% | 0.042017 | 2 |
| IBM | 12.43% | 0.04% | 3.42% | 0.003469 | 3 |
| MU | 4.11% | 0.04% | 3.11% | 0.009542 | 4 |
| SNDK | 10.75% | 0.03% | 2.19% | 0.002574 | 5 |
| LLY | 2.24% | 0.02% | 1.95% | 0.011033 | 6 |
| CSCO | 3.37% | 0.02% | 1.54% | 0.005789 | 7 |
| STX | 7.91% | 0.02% | 1.44% | 0.002299 | 8 |
| LRCX | 3.47% | 0.02% | 1.40% | 0.005077 | 9 |
| ANET | 5.77% | 0.02% | 1.30% | 0.002846 | 10 |
| QCOM | 5.38% | 0.01% | 1.16% | 0.002720 | 11 |
| WDC | 5.84% | 0.01% | 1.06% | 0.002286 | 12 |
| GLW | 6.20% | 0.01% | 0.95% | 0.001942 | 13 |
| MRK | 2.55% | 0.01% | 0.91% | 0.004505 | 14 |
| LITE | 11.11% | 0.01% | 0.88% | 0.001003 | 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).
