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Citigroup closed on September 30, 2025, , , ranking it 51st in market activity. .
Recent developments highlighted regulatory scrutiny as U.S. authorities intensified reviews of the bank’s risk management frameworks. Analysts noted the move could pressure , though Citigroup’s capital reserves remain robust. Additionally, the firm announced a strategic pivot toward high-margin wealth management, signaling long-term growth intentions despite near-term operational challenges.
Market participants observed heightened trading activity linked to short-term options expiration cycles, which may have amplified intraday volatility. However, no material earnings updates or dividend revisions were disclosed during the reporting period.
To run this back-test accurately I’ll need to pin down a few practical details: 1. Universe • Do you want to screen “all U.S. listed stocks” every day, or should we limit the universe (e.g., S&P 500 constituents, NYSE + NASDAQ only, etc.)? • ADRs, ETFs and micro-caps – include or exclude? 2. Ranking rule • “Top 500 by share volume” (shares traded) or by dollar volume (shares × price)? • Re-rank every trading day, then buy an equal-weight basket of those 500 names at the open and liquidate at the next day’s open – is that the intended mechanics? 3. Transaction assumptions • Any transaction cost or slippage you’d like applied? • Capital base for position sizing (e.g., $1 million, fully invested each day in 500 equal weights)? 4. Benchmark • Compare against a benchmark (e.g., SPY) or just report absolute performance? Let me know your preferences (or confirm the defaults below) and I can set the back-test up: Default assumptions if you’re okay with them: • Universe: all NYSE + NASDAQ common stocks (no ETFs or ADRs) • Ranking: top 500 by share volume, refreshed daily • Execution: buy at that day’s close, hold 1 day, sell at next day’s close (avoids open-price gaps) • Position sizing: equal weight, fully invested, no leverage • No transaction costs/slippage • Benchmark: SPY Just let me know if these defaults work or if you’d like adjustments, and I’ll proceed.

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