Daily Report – 2026-06-18


S&P 500 Report

Top 10 Contributors


S&P 500: 7500.58 | 📈 Up (1.06%)

Market Structure Score:

1/3
— Weak / Fragile Structure


🔁 Regime shift: Weak / Risk-Off → Neutral

Market Summary

▶ The market exhibited a highly concentrated structure.

▶ Primary leadership came from
NVDA (2.95%), MU (8.70%), AVGO (4.70%), AMZN (2.90%), INTC (10.64%).

▶ Market participation was mixed, with internals showing a balanced but less decisive structure. Leadership remained highly concentrated, with the top five contributors accounting for 34.8% of total index movement. Risk appetite remained mixed, with selective participation driving overall index behavior.

▶ Market breadth remained at 263 of 502 stocks advancing (▲ 52.4%) while 238 declined (▼ 47.4%). (1 unchanged)

Market Signals

▶ ⚠️ Concentration spike — leadership narrowing

Top Contributors (>0.01%)

Ticker Return Contribution Share Impact_Efficiency Rank
NVDA 2.95% 0.24% 11.47% 0.081569 1
MU 8.70% 0.15% 7.14% 0.017208 2
AVGO 4.70% 0.14% 6.82% 0.030490 3
AMZN 2.90% 0.11% 5.26% 0.038059 4
INTC 10.64% 0.09% 4.09% 0.008055 5
GOOGL 1.32% 0.08% 3.75% 0.059500 6
AMD 4.86% 0.06% 3.03% 0.013094 7
AAPL 0.70% 0.05% 2.33% 0.070144 8
SNDK 11.54% 0.05% 2.19% 0.003988 9
KLAC 8.73% 0.04% 1.78% 0.004289 10
META 1.70% 0.04% 1.71% 0.021070 11
TXN 6.95% 0.03% 1.41% 0.004256 12
GLW 11.13% 0.03% 1.26% 0.002368 13
LRCX 3.97% 0.03% 1.22% 0.006447 14
AMAT 4.08% 0.02% 1.19% 0.006111 15
QCOM 6.17% 0.02% 1.17% 0.003974 16
GEV 5.80% 0.02% 1.10% 0.003988 17
CAT 3.13% 0.02% 1.00% 0.006719 18
TSLA 1.04% 0.02% 0.89% 0.018065 19
ADI 4.83% 0.02% 0.74% 0.003217 20
CSCO 1.88% 0.01% 0.71% 0.007886 21
WDC 4.79% 0.01% 0.68% 0.002994 22

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).


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