Notes from an Intraday Trader
Tim Titus — intraday S&P 500 index options trader and founder of SPX Option Trader
Most financial commentary is written in terms of prediction: where the market may go next week, next month, or next year. My work focuses on something different.
I study how the S&P 500 behaves during the trading session itself.
Not what the market should do, but how participants are actually responding in real time.
I have traded the financial markets since the late 1990s and now focus primarily on SPX and SPY same-day expiration (0DTE) index options.
Price movement during the day reflects positioning, liquidity, and reaction to key levels. Certain tendencies appear repeatedly. The opening period shows whether overnight positioning holds. The middle of the session reveals acceptance or rejection of price. Late-day activity often indicates whether larger participants are committing capital or reducing exposure.
Rather than forecasting long-term direction, I focus on what the market is doing as it unfolds.
The articles on this website explain those observations. They are not trade alerts and they are not a trading course. They are written to explain how intraday market behavior develops and how traders interpret it.
Over time markets change, but the process remains the same: observe, interpret, and participate only when conditions justify the risk.
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Why SPX Option Prices Appear Elevated at the Market Open
Many traders notice the same thing shortly after the opening bell. They look at the SPX or SPY option chain […]
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Why Experienced Traders Don’t Trade 0DTE Options Every Day.
0DTE options have expanded rapidly in popularity. The appeal is understandable. Trades resolve quickly and price movement can be significant […]