Oftentimes I’ve witnessed, on a plethora of investment message boards, the prideful touting of various posters annual/aggregate returns in relationship to the markets; on occasion including myself. Covestor has become a vehicle for investors to provide a basis for their boasting with intangible evidence, again, myself included. Therefore, I decided to use my self as an example with this experiment to show that, to a large degree (IMO 100%), what is stated as the ‘Covestor Return Since Inception’ does not represent the ‘Actual Investment Return Since Inception’.
The main reason for this inaccuracy is that Covestor does not weigh the Aggregate Return based off of how much capital was invested into the portfolio, rather, it weighs the Aggregate Return based off of total account value appreciation/depreciation over time, as well as other factors, completely disregarding any invested capital employed. This is a fundamental flaw in rudimentary accounting.
I’ll use my Covestor linked Brokerage Account as my example. I have four Brokerage Accounts – one in which I set into service a few days ago. From the four accounts I own I chose one of them to link to Covestor.
This account was started on November of 2007 with a meager $500 capital investment. my Annual reporting period for this account will always be in November. The total Invested capital for the fiscal years are as follows:
November 2007: $500.00 (Starting Capital Structure)
November 2008: $4,133.79
November 2009: $1,449.72
As of November of 2008, my Covestor Brokerage Account had a Portfolio Value of $1,627.47. OUCH!!! During that period, I invested $4,633.79 and lost $3,006.32 of that capital; an annual return (loss) of (64.88%). Without making any excuses and without the need of doing so – recessions are clearly difficult periods.
For the following period, I invested an additional $1,449.72 of capital into the business. This now brings the Total Invested Capital as of 2009 to $6,083.51.
As of November of 2009, my Covestor Brokerage Account had a Portfolio Value of $23,922.26. With Total Invested Capital now being $6,083.51, my Actual Annual Return for the period ending Nov. 2009 was 293.23%.
2008 Annual Return (loss): (64.88%)
2009 Annual Return (loss): 293.23%
Since the amount of capital I infuse into my portfolio is at variable times, the correct way to weigh the aggregate return is:
i = (FV/PV)^1/n – 1
i= rate of return, FV= Future Value, PV= Present Value, N= time
Another way to state this equation is:
i = (n)Root of (FV/PV)
i = 2nd Root 3.93
or i = (3.93)^.50 – 1
Either equation gives the ending result:
98.30% averaged annual return over a 2 year time period.
My Covestor account states that my Return Since Inception is 658.21% and 877.84% with Cash included. Obviously this data is incorrect as is the case with nearly every (I believe all) portfolio’s linked and especially ‘not’ linked to the Covestor platform.
Although 658% & 877% are much prettier numbers and ones that ‘have’ given me Delusions of Grandeur in the past as well as seeing other Covestor members often suffer from this ill repute, it is not the correct number nor is its method for arrival a correct process in determining the Aggregate and Annual Return.
Therefore, it is clearly possible that someone being listed on the Covestor Rankings in position #100 to have an ‘Actual’ Aggregate and Annual Return of a much higher percentile than the individual who is ranked #1; because #100 may have only invested a small amount of his capital once and never added to it again. #1, on the other hand, may have invested capital into his portfolio on a regular basis and in large quantity.
I encourage all to investigate their own portfolio’s and arrive at the proper and correct returns. You may find a number that you are more than happy with, such as I have, without the need of hyperbole.
“You don’t know who’s swimming naked until the tide goes out” – Warren Buffett
“I’m wearing underwear” – Jim Hodges
All the best,
Jim
* As of December 22nd, 2009: Averaged Annual Return = 115.39%






