Historical test of $EBAY increased profit 558% using my investing system

In a 8 year time frame from January 3, 2006 to December 31, 2013, eBay [stckqut]EBAY[/stckqut] increased 38.4% if you would have implemented a pure buy-and-hold strategy. If you would implement the investing system that I explain in my book, The Confident Investor, you would have seen a 253.2% return on your investment. This is a 658.8% increase on the profit percentage.

To put it into actual dollars, suppose you invested $10,000 in eBay on 1/3/2006. With the investing system that is explained in The Confident Investor, you would have exited the market on 12/31/2013 with $47,522.94 . With my investing system, it is not uncommon for you to need a bit more cash available to cover the ongoing trades. Therefore, rather than $10,000, you would have needed $13,454.01. You would have 689 shares which were purchased with other people’s money and still have your original $10,000.

To be fair in our comparison, the buy-and-hold investing system if calculated with $13,454.01 would have ended up with  $18,625.32  and a respectable 38.4%. You would have purchased 342 shares but your original $13,454.01 would be tied up in the stock and not available for other investments.

The profit on the buy-and-hold investing system in this scenario is  $18,625.32 .  The profit using my investing system, GOPM (Grow on Other People's Money), is  $47,522.94.  That means the increased profit on eBay in this time frame was $28,897.62 . This means your profit INCREASED by 253%!!

Understanding the differences in the investing system

Understanding buy-and-hold investing system is easy. You have a given amount of money, in this case $13,454.01. You buy 342 shares at the start of the test period. At the end of the test period, you sell the shares and the profit (or loss) is the standard that any other system must beat.

Understanding the GOPM investing system is a bit more complicated without reading my book, The Confident Investor. Before you even start to invest, the investing system teaches you to look for incredibly well-run companies and only invest in those companies. While eBay may or may not have qualified for this status in 2006, it does in 2014 so we are simply back-testing against a currently well-run company. While past performance doesn't guarantee future performance, it is probably the best tool that we have to understand investment methodologies.

After you find a well-run company, you are going to buy $10,000 worth of shares when the technical indicators tell you that the stock has upward momentum. You are then going to sell those shares when that momentum slows down or reverses.  The profit that you make on that transaction, you will keep in the stock (in other words, you are not going to sell those shares). You are going to keep the $10,000 ready for when the stock has the correct momentum. If there is any excess profit (e.g. less than the value of a full share after keeping the $10,000) you will just stick that into your money-market account in this example. It is possible that you could invest this excess amount but we are going to simplify this example and just hold that money.

As a quick example, you invest $10,000 in a stock trading at $50 per share so you have purchased 200 shares.  Over the course of the next several days or weeks, the stock price increases to $55 which is where you decide to sell. To get your original capital of $10,000 back, you sell 182 shares resulting in $10,010 in your account and 18 shares that are essentially free since they were purchased with Other People's Money. You now have your original capital of $10,000, 18 free shares and an additional $10.

Using this investing system, you will make several trades per year and may even be trading weekly. Therefore, to make this model fair, I need to account for stockbroker fees and commissions.  In this example, I am using $8 for every sell and for every purchase. You may have a better fee from your favorite broker but $8 seems fair for a test. Frankly, if you are paying more than $10 for each transaction then you probably need to be looking at another broker!

Using this technique, by the end of the test on 12/31/2013 you would have 689 shares of eBay that cost you $3,454.01. Those 689 shares were acquired for $5.013 per share! This is significantly cheaper than today's stock price and no matter what happens to eBay you could probably sell these shares for a profit at any time! You would still have the original $10,000 in your bank account! This is because you have purchased these share with Other People's Money.  This is why I call my investing system GOPM - Grow on Other People's Money.

If you would have invested in eBay as described in this article, you would have doubled your investment by November 12, 2010.

The rest of this article shows each buy and sell transaction for those 8 years. It shows the date, the assumed purchase price on that day (taken from Yahoo - the purchase price is the average of the opening and closing price on that day) and the profit or loss. If you haven't read my book, The Confident Investor, then you may not understand the timing of the trades. In fact, if you haven't purchased the book and registered here on this site as a book owner then you won't be able to see those individual trades. If you have registered and cannot see the trades, make sure you are logged in and refresh your browser.

Which brings me to the big set of questions. Shouldn't you own this book? Does your investing system beat buy-and-hold? Do you even have a strategy for your investment system? If your strategy beats buy-and-hold, does it beat GOPM - Growing on Other People's Money?

You can purchase my book wherever books are sold such as AmazonBarnes and Noble, and Books A Million. It is available in ebook formats for NookKindle, and iPad. It may be available at your favorite bookstore as well but you may have to ask.

eBay 8 year chart from Google Finance

eBay 8 year chart



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