Category Explanations
Systems analysis will be covered in four sections:
System Analysis, Total Trade Analysis, Efficiency Analysis, and Open Position
Analysis. Each section is described below. The fields in each section are
also listed and described.
System Analysis centers on the overall performance of the trading system and should be used to gauge the total performance. It should not, however, be used exclusively to determine the true worth of the system or portfolio. The available fields are listed and described below in alphabetical order:
Adjusted Gross Loss
This figure inflates losing trades
by calculating the total losing trades plus its square root, multiplied
by the system's average losing trade dollar amount. Therefore, if you are
willing to accept this adjusted figure and trade the system, then actual
system returns should be even more acceptable.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Adjusted Gross Profit
This figure deflates winning
trades by calculating the total winning trades minus its square root, multiplied
by the system's average winning trade dollar amount. Therefore, if you
are willing to accept this adjusted figure and trade the system, then actual
system returns should be even more acceptable.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Adjusted Net Profit
This field is calculated by subtracting
the adjusted gross loss from the adjusted gross profit. The adjusted gross
profit and loss fields inflate the system's losing trades and deflate the
system's winning trades in an effort present a worst case scenario. Therefore,
if you are willing to accept this adjusted figure and trade the system,
then actual system returns should be even more acceptable.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Adjusted profit factor
This field is similar to profit
factor, but it calculates by dividing the adjusted gross profit the adjusted
gross loss. The adjustment artificially deflates winning trades and inflates
losing trades, giving you a worst case scenario.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Annual rate of return
The system's annual compounded
rate of return for the test period.
Note This value will not display
for systems applied to intraday charts.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Buy/Hold return
The return you would have achieved
if you had bought and held for the duration of the test period.
When comparing the total net
profit of the system to the Buy/Hold Return, keep in mind that the buy
and hold strategy can represent significant draw down as well as risk because
your investments are exposed to market moves 100% of the time. Also, consider
that since your money is in the market 100% of the time, you cannot invest
it elsewhere.
The system result's Net Profit
figure does not need to be greater than the Buy/Hold Return, but certainly
the closer (or greater) the better, especially if combined with time in
the market.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Commissions
The dollar amount paid in brokerage
commissions. This value does not include slippage.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Cumulative return
The total system return for the
test period. A system's return does not have to outperform the buy/hold
return assuming that it trades selectively (i.e., less than 100% of the
time).
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Gross Loss
This field calculates the cumulative
total of all losing trades generated by a system. This is a very important
number that is often overlooked. Keep in mind that net profit will increase
not only when you improve gross profit but also when you reduce gross loss.
It is very important to analyze and work with the losing trades when improving
your trading strategies.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Gross Profit
This field calculates the cumulative
total of all winning trades generated by a system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Interest Earned
The interest rate your money
earns when not in the market. You set the interest rate you earn on non-invested
money in the Costs
tab of the Format System
dialog box.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
K-ratio
This ratio is similar to the
Sharpe Ratio. It differs in that it uses linear regression techniques to
measure the consistency of results through time. The higher the ratio,
the greater the return in relation to risk.
Note This value will not display
for systems applied to intraday charts.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Net Profit
This field calculates the total
number of dollars made or lost by the trading system during the test period.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Open Position
This field calculates the profit/loss
on the current open position. If you do not have an open position the field
returns zero.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Percent in the market
Divides the test period by total
time in the market to derive the percentage of time spent in the market.
The less the system has money invested in the market the less your capital
is exposed to market activity and the more you have your equity available
to invest elsewhere. If this number is large, make sure its reward/risk
ratios are in line with other comparable systems. Percent time in the market
is yet another measure of risk.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Percent profitable
This field calculates the percentage
of profitable trades generated by a system. Percent profitable is calculated
by dividing the number of winning trades by total trades generated by a
system.
Percent profitable can be misleading
by itself because there are different approaches to profitability. A system
could have many small winning trades, in which case the percent profitable
would be high with a small average winning trade, or a few big winning
trades which would produce a low percent profitable and a big average winning
trades.
Many successful systems have
a percent profitability below 50% but are still profitable because their
losses are limited.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Profit factor
This field calculates how many
dollars a trading system made for every dollar it lost. This value is calculated
by dividing gross profits by gross losses.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Ratio avg. win/avg. loss
This field calculates, on average,
how many dollars you win for every dollar you lose. This value is calculated
by dividing the average winning trade by the average losing trade.
This field can be very deceiving
by itself because systems can have different approaches to profitability.
A system could look to trade very often in order to capture many small
profits yet have an average losing trade greater than the average winning
trade. The higher this number is the better, but it should be looked at
together with the percentage of winning trades and the net profit.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Return on initial capital
The system's net profit divided
by the initial capital.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Return on maximum drawdown
The field represents the system's
net profit divided by its maximum draw down.
Note When you do not factor
in margin on the Costs tab of the Format System dialog box, Return on Account
will equal this field.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Return Retracement Ratio
This reward/risk ratio is an
alternative to the Sharpe Ratio. Unlike the Sharpe Ratio, this field distinguishes
the difference between upside and downside return fluctuation. The higher
the ratio, the greater the return in relation to risk.
Note This value will not display
for systems applied to intraday charts.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
RINA Index
This proprietary index combines
select net profit, time in the market, and drawdown calculations into a
single reward/risk ratio. The larger the number the more efficient the
system. Look for a system with an index of 30 or more.
RINA Index = (Select Net Profit)/((Average
Drawdown) x (Percent time in the market))
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Select Gross Loss
This field adjusts the gross
loss by subtracting negative outlier trades from total losing trades.
Note Systems that are heavily
dependent upon outlier trades will generally have dramatically different
actual profit results. A trade is considered to be an outlier when its
loss is greater than three standard deviations away from the average loss.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Select Gross Profit
This field adjusts the gross
profit by subtracting positive outlier trades from total winning trades.
Note Systems that are heavily
dependent upon outlier trades will generally have dramatically different
actual profit results. A trade is considered to be an outlier when its
profit is greater than three standard deviations away from the average
profit.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Select Net Profit
This field adjusts system results
by removing all outlier trades, both positive and negative. The final value
represents the net profit without any anomalous trades.
Note Systems that are heavily
dependent upon outlier trades will generally have dramatically different
actual profit results. A trade is considered to be an outlier when its
profit/loss is greater than three standard deviations away from the average
profit/loss.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Sharpe Ratio
Average monthly return (%) minus
the risk-free rate (Interest rate setting in the Costs tab of the Format
System dialog box) divided by the standard deviation of monthly returns.
The higher the number, the greater the return in relation to the risk.
This calculation is based on the last 36 months.
Note This value will not display
for systems applied to intraday charts. An alternative to this field is
the Return Retracement Ratio.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Total Trade Analysis enables you to evaluate the performance of the system by analyzing each trade. This section includes overall trade analysis information as well as Run-Up and Drawdown, Reward/Risk Ratios, and Outlier Trades information. Each available field is listed and described below in alphabetical order within its category:
Total Number of Trades
This field calculates the total number of trades (number of winning trades plus number of losing trades) generated by a system. The total number of trades is significant for a number of reasons. For example, no matter how large the net profit generated by a system, you must be sure the system generated enough trades to be statistically valid. Also you need to consider the time period tested with the total number of trades; the system may trade too frequently or too seldom for your needs.
Notes When viewing the
Summary Tab in the System Report, this field calculates and displays a
value for all trades (long and short), long trades (buying long and exiting),
and short trades (selling short and exiting).
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Total Stopped Trades
The number of trades that were
stopped out by the system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average Trade
The average profit/loss of all
trades.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
1 Standard Deviation (STDEV)
Measures the absolute variability
of the returns made by the winning (or losing) trades. The smaller the
number, the more trades will resemble the average winning (or losing) trade,
and the more stable the system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average win +/- 1 STDEV
Measures the extreme range of
trades (winning or losing, depending on the analysis) +/- one standard
deviation (STDEV) from the average.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Coefficient of variation
Expresses the standard deviation
as a percentage of the mean. This percentage figure relates to the stability
of the winning (losing) trades. The smaller the percentage, the more stable
the trades.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Run-up is defined as the system's
maximum profit potential during the course of a trade (the opposite of
draw down). The greater the run-up, the better the performance, assuming
the system captures the majority of the move.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Maximum Run-up
The largest intra-day run-up
experienced by the system on a single closed out trade. This measures the
open to the highest unrealized high of the trade for a long position, and
from the open to the lowest unrealized low of the trade for a short position.
It represents the largest amount of reward (realized or unrealized) experienced
during a trade.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Max. Run-up Date
The date of the system's maximum
run-up.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average Run-up
The average maximum profit potential
of all the trades. This quantifies the system's "normal" profit potential.
The maximum run-up represents the best case scenario, whereas the average
represents the system's more probable behavior.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average win +/- 1 STDEV
Measures the extreme range of
trades (winning or losing, depending on the analysis) +/- one standard
deviation (STDEV) from the average.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
1 Standard Deviation (STDEV)
Measures the absolute variability
of the returns made by the winning (or losing) trades. The smaller the
number, the more trades will resemble the average winning (or losing) trade,
and the more stable the system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Coefficient of variation
Expresses the standard deviation
as a percentage of the mean. This percentage figure relates to the stability
of the winning (losing) trades. The smaller the percentage, the more stable
the trades.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Drawdown analysis is defined
as the system's maximum loss potential during the course of a trade. The
greater the drawdown, the more "pain" experienced by the trader.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Maximum Drawdown
The largest intraday drawdown
experienced by the system on a single closed out trade. This version of
drawdown measures the open to the lowest unrealized low of the trade, based
on a long position and reversed for a short position.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average Drawdown
The average maximum loss potential
of all the trades. This figure quantifies the system's "normal" loss potential.
The maximum drawdown tells you the worst case scenario; whereas the average
represents the system's more probable behavior.
{ ** © 1987, 1999 Omega
Research, Inc. **}
1 Standard Deviation (STDEV)
Measures the absolute variability
of the returns made by the winning (or losing) trades. The smaller the
number, the more trades will resemble the average winning (or losing) trade,
and the more stable the system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Maximum Drawdown Date
The date of the system's maximum
drawdown.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average win +/- 1 STDEV
Measures the extreme range of
trades (winning or losing, depending on the analysis) +/- one standard
deviation (STDEV) from the average.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Coefficient of variation
Expresses the standard deviation
as a percentage of the mean. This percentage figure relates to the stability
of the winning (losing) trades. The smaller the percentage, the more stable
the trades.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
The Reward/Risk ratios center
on the system's profitability in relation to risk. With these ratios, risk
is measured using the system's largest loss or maximum drawdown. The larger
the ratio, the more profitable the system is relative to its risk.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Net Prft/Largest Loss
The total net profit divided
by the largest losing trade.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Adj. Net Prtf/Largest Loss
The adjusted net profit divided
by the largest losing trade.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Net Prft/Max Drawdown
The net profit divided by maximum
drawdown.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Adj Net Prft/Max Drawndown
The adjusted net profit divided
by the maximum drawdown.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
This section displays profit/loss by selectively removing the trades that exceed the average trade by plus or minus three (3) standard deviations.
Positive Outliers
Counts the number of total trades
that exceed the average trade by plus three (+3) standard deviations, and
adds their cumulative profit/loss figures.
Note The positive outliers can
be seen as large green dots on the Total Trade graph.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Negative Outliers
Counts the number of trades that
exceed the average trade by minus three (-3) standard deviations, and adds
their cumulative profit/loss figures.
Note The negative outliers can
be seen as large red dots on the Total Trade graph.
{ ** © 1987, 1999 Omega
Research, Inc. **}
Total Outliers
Counts the number of total trades
that exceed the average trade by plus/minus three (+/-3) standard deviations,
and adds their cumulative profit/loss figures.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Efficiency Analysis
This section centers on a trade's efficiency to capture the maximum profit potential from the total price movement. The efficiencies are broken down into three types: entry, exit and total. Trading systems tend to be relatively inefficient; even the best system does not take full advantage of each and every trading opportunity. Each of the fields is described below, and the definition of each applies for the entry, exit and total.
Average Efficiency
The average efficiency for entry,
exit and total trades. The higher the number, the more efficient the average
trade is in maximizing its profit potential.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
1 Standard Deviation (STDEV)
Measures the absolute variability
of the returns made by the winning (or losing) trades. The smaller the
number, the more trades will resemble the average winning (or losing) trade,
and the more stable the system.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Average win +/- 1 STDEV
Measures the extreme range of
trades (winning or losing, depending on the analysis) +/- one standard
deviation (STDEV) from the average.
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Coefficient of variation
Expresses the standard deviation
as a percentage of the mean. This percentage figure relates to the stability
of the winning (losing) trades. The smaller the percentage, the more stable
the trades.
{ ** © 1987, 1999 Omega
Research, Inc. **}
Unrealized Profit/Loss
This field shows the profit or
loss of the open trading position (Open Position), the average profit or
loss for the trading system (Average Trade), and also compares the open
position profit or loss with the system's historical trading results (Percent
of Average).
{ ** © 1987, 1999 Omega
Research, Inc. ** }
Time in trade (Days)
This field shows the time spent
in the open trading position measured in bars (Open Position), the average
time spent in trades measured in bars (Average Trade), and also compares
the open position time to the system's historical trading results (
Percent of Average).
{ ** © 1987, 1999 Omega
Research, Inc. ** }