• OEX, which is traded on the Chicago Board Options Exchange (CBOE), is the ticker used to denote options on the Standard & Poor’s 100 Index.

  • OEX options were the original standard for trading index options in the domestic stock market, although over time options on the S&P 500 (SPX) overtook them in popularity.
  • Traders use OEX options to hedge or speculate on the performance of the large cap segment of the stock market.