If you're an active trader, you work hard to generate profits in your trading account. You study the charts, you watch the day's headlines, and research your entry and exit points before placing an order. If things go your way, you end up with a winning trade in your account. But if you're using a broad-market ETF to trade options on the S&P 500®, you may be paying more in taxes than you would by using index options.* That means you may be giving up more of your hard-earned trading profits.

Many trading strategies, such as covered-call or spread trading, involve options writing (selling), where the primary risks are market movement and volatility. But there's another risk if you happen to be writing options on dividend-paying equities like SPY ETFs: early assignment.

There are a number of different types of options contracts available on broad-based U.S. equity indexes. Some of the most actively traded products include options on SPY, SPX and XSPSM (Mini-SPX). They all track the S&P 500® and both SPY and XSP options have the same notional size, making them somewhat interchangeable. A key difference, however, is settlement style.