I often get asked by members which are better to trade, Indexes or ETFs. “Should I trade SPY or SPX, IWM or RUT, QQQQ or MNX?”

The answer is, it depends. But I do have my preferences.

Liquidity

Both ETFs and Indexes are very liquid.  As I write this the At The Money Call in  SPX has an open interest of 45,000 contracts. The SPY At The Money Call has an open interest of 85,000 contracts. So both are very liquid. Major hedge funds though trade the indexes because they trade directly with the market makers.

Advantage: Even

Commissions

Commissions play a role because the SPX is ten times larger than the SPY. So if you want to trade $1,000 credit spread, you can do it with a 1 contract spread in SPX or a 10 contract spread in SPY. If you are paying per contract, the commission to trade SPY is ten times larger. if you [...]

An Exchange Traded Fund (ETF) is a type of investment fund that is traded on stock exchanges.  This type of fund is similar to stock, and holds assets at about the same price as the net asset value.  

The first ETF in the business was introduced in the early 1990s and were called Spiders (SPY).  This ETF tracked the S&P 500 index.  The Qubes (QQQQ) came a few years later and this tracked the 100 largest non-financial companies on the Nasdaq. Some of the biggest players in the ETF market today include State Street Global Advisors, Barclay’s Global Fund Advisors and Vanguard.  Of course there are many types of ETFs, and they can track everything from the United States stock market to just parts of the stock market, like large or small stocks or specific industries.  ETFs even track foreign markets, individual countries, and commodities.

 There are hundreds of ETFs to choose [...]