Monday, January 30, 2017

SPDR S&P 500 - Analyst Report

The SPDR S&P 500 (NYSE: SPY) is an exchange-traded fund (ETF), designed for tracking the S&P 500 stock market index. SPDR S&P 500 is an acronym for the Standard & Poor's Depositary Receipts – Standard & Poor's 500 Index, which consists of 500 stocks selected by economists and considered as leading measure of U.S equities. The S&P 500 is a preferred index for U.S stocks, because of its market cap methodology that weighs larger companies as more important, rather than the traditional price weighting methodology that weighs more expensive stocks as more important. In other words, your portfolio will consists of 500 leading companies stocks with as tiny the amount of investment as you want it to be. Should it looks interesting to you to acquire SPY stocks, the process is as easy as logging in your online brokerage account and search for it, or calling your broker and ask for it.

How good can this SPY stock be? Historical data from Yahoo! Finance shows that from January 29, 1993 to December 31, 2016 SPY has an average monthly return of 0.814% and standard deviation of 4.16%. It implies that in the long run you should make profit of 0.814% a month with this stock, however the chance of running into a loss is also likely to happen. 95% of SPY’s expected monthly return ranges from -7.34% to 8.97%, so you have a fairly higher chance of making money rather than losing money. For better understanding, I shall construct a Monte Carlo simulation in SPY.


Assuming $500 is invested in SPY every month for 30 years. The total amount invested is $180,000. The return rate is randomly chosen from the range, and then an ending balance is calculated. Repeating the process for 100 times, and here is the result: on average the ending balance is $1,160,121.25 with a 95% chance it ranges from $(216,845.09) to $2,537,087.59. That means you are likely to get a return worth 6 times your investment, and you are likely to be a millionaire after 30 years just by investing in SPY. My reccomendation is to buy SPY, keep it and invest more in it as much as you can. Not only this is a safe choice with low risk, it also promises high return that not many investments can compare to.

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