Daily Report – 2026-05-15


S&P 500 Report

Top 10 Contributors


S&P 500: 7408.50 | 📉 Down (-1.13%)

Market Structure Score:

0/3
— Weak / Fragile Structure


🔁 Regime shift: Neutral → Weak / Risk-Off

Market Summary

▶ The market is in a broad-based market move .

▶ Key drivers: MSFT (3.05%), AAPL (0.68%), XOM (3.36%), CVX (2.39%), CSCO (2.32%). Top 5 names account for 12.8% of total index movement.

▶ Market breadth: 140 of 502 stocks advanced (▲ 27.9%) while 359 declined (▼ 71.5%). (3 unchanged)

Market Signals

▶ 🔄 Leadership rotation increasing

Top Contributors (>0.01%)

Ticker Return Contribution Share Impact_Efficiency Rank
MSFT 3.05% 0.16% 7.63% 0.051540 1
AAPL 0.68% 0.04% 2.13% 0.064860 2
XOM 3.36% 0.04% 1.73% 0.010572 3
CVX 2.39% 0.01% 0.68% 0.005894 4
CSCO 2.32% 0.01% 0.65% 0.005789 5

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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