Aon’s Volume Plummets 56.82% to 498th in Market Activity Amid 0.17% Gains
On October 2, 2025, AonAON-- (AON) saw a trading volume of $0.22 billion, a 56.82% decline from the previous day, ranking it 498th in market activity. The stock rose 0.17% for the session, outperforming broader market trends amid subdued trading interest.
Recent developments indicate a mixed outlook for Aon’s near-term performance. The sharp drop in trading volume suggests reduced short-term liquidity, potentially limiting volatility catalysts. However, the modest price gain reflects selective buyer interest in the sector, particularly among institutional investors seeking undervalued positions in risk management services. Analysts note that Aon’s recent strategic pivot toward digital risk solutions could drive long-term momentum, though near-term execution risks remain under scrutiny.
To run this back-test robustly I need to pin down a few practical details: 1. Market universe • U.S. listed common stocks (NYSE / NASDAQ), or a different market? 2. Selection timing • Choose the 500 highest-volume stocks using the prior day’s trading volume measured at that day’s close, then buy at next day’s open? • Or buy at the same day’s close and sell at the next day’s close? 3. Weighting & rebalancing cost assumptions • Equal-weight each stock each day? • Any commission/slippage you want applied? 4. Benchmark (if you’d like one) • E.g., SPY or leave benchmark unspecified. Let me know your preferences and I’ll build the back-test accordingly.

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