SPX Options Trading Education

SPX is the S&P 500 Index — a market-capitalization-weighted index of roughly 500 large U.S. companies and one of the most widely followed measures of the U.S. stock market.

The index itself can't be bought, but SPX options are listed on it. They are cash-settled and European-style, and each contract represents the option price × 100. Start with our beginner's guide to SPX options.

SPY is an ETF that tracks the S&P 500 at about one-tenth the index level. SPX contracts are roughly ten times larger, cash-settled and cannot be exercised early; SPY options settle into shares and are American-style.

For smaller accounts, SPY's smaller contract size can make position sizing easier. Full comparison: SPX vs SPY options. Tax treatment can differ — consult a tax professional.

Every option has an expiration date. As it approaches, extrinsic (time) value decays — slowly at first, then faster in the final days and hours. An idea can be right on direction and still lose money if it takes longer than the contract allows.

0DTE means zero days to expiration: options that expire the same day. With almost no time left, small index moves cause large percentage swings in the option, and time decay is steep. Many 0DTE contracts expire worthless. Read what are 0DTE options.

When volatility and expiration risk increase, a smaller position may be appropriate. Sizing starts with the dollar amount you're willing to lose, not the number of contracts you want. See how to size an options trade.

Before any entry, HamedTrades education looks at trend, support and resistance, supply and demand, and — critically — where the idea would be invalidated.

Decide how much can be lost before thinking about potential profit. A predetermined maximum loss keeps any single SPX trade from defining the account. More in risk management for options traders.

Winning and losing trades both carry lessons. Reviewing the thesis, entry, size and exit after the session turns outcomes into education rather than luck or frustration.