DexCom (DXCM)

TotalReturn:

'The total return on a portfolio of investments takes into account not only the capital appreciation on the portfolio, but also the income received on the portfolio. The income typically consists of interest, dividends, and securities lending fees. This contrasts with the price return, which takes into account only the capital gain on an investment.'

• Looking at the total return, or increase in value of 657.2% in the last 5 years of DexCom, we see it is relatively larger, thus better in comparison to the benchmark SPY (63%)
• During the last 3 years, the total return, or increase in value is 82.9%, which is greater, thus better than the value of 33.5% from the benchmark.

CAGR:

'The compound annual growth rate isn't a true return rate, but rather a representational figure. It is essentially a number that describes the rate at which an investment would have grown if it had grown the same rate every year and the profits were reinvested at the end of each year. In reality, this sort of performance is unlikely. However, CAGR can be used to smooth returns so that they may be more easily understood when compared to alternative investments.'

• The compounded annual growth rate (CAGR) over 5 years of DexCom is 50%, which is larger, thus better compared to the benchmark SPY (10.3%) in the same period.
• Compared with SPY (10.1%) in the period of the last 3 years, the annual performance (CAGR) of 22.3% is greater, thus better.

Volatility:

'Volatility is a rate at which the price of a security increases or decreases for a given set of returns. Volatility is measured by calculating the standard deviation of the annualized returns over a given period of time. It shows the range to which the price of a security may increase or decrease. Volatility measures the risk of a security. It is used in option pricing formula to gauge the fluctuations in the returns of the underlying assets. Volatility indicates the pricing behavior of the security and helps estimate the fluctuations that may happen in a short period of time.'

• Compared with the benchmark SPY (21.6%) in the period of the last 5 years, the volatility of 49.7% of DexCom is higher, thus worse.
• Looking at volatility in of 50% in the period of the last 3 years, we see it is relatively greater, thus worse in comparison to SPY (25.1%).

DownVol:

'The downside volatility is similar to the volatility, or standard deviation, but only takes losing/negative periods into account.'

• Compared with the benchmark SPY (15.6%) in the period of the last 5 years, the downside risk of 31.2% of DexCom is greater, thus worse.
• Looking at downside risk in of 34% in the period of the last 3 years, we see it is relatively larger, thus worse in comparison to SPY (18.1%).

Sharpe:

'The Sharpe ratio (also known as the Sharpe index, the Sharpe measure, and the reward-to-variability ratio) is a way to examine the performance of an investment by adjusting for its risk. The ratio measures the excess return (or risk premium) per unit of deviation in an investment asset or a trading strategy, typically referred to as risk, named after William F. Sharpe.'

• Compared with the benchmark SPY (0.36) in the period of the last 5 years, the Sharpe Ratio of 0.96 of DexCom is higher, thus better.
• During the last 3 years, the risk / return profile (Sharpe) is 0.4, which is higher, thus better than the value of 0.3 from the benchmark.

Sortino:

'The Sortino ratio improves upon the Sharpe ratio by isolating downside volatility from total volatility by dividing excess return by the downside deviation. The Sortino ratio is a variation of the Sharpe ratio that differentiates harmful volatility from total overall volatility by using the asset's standard deviation of negative asset returns, called downside deviation. The Sortino ratio takes the asset's return and subtracts the risk-free rate, and then divides that amount by the asset's downside deviation. The ratio was named after Frank A. Sortino.'

• The excess return divided by the downside deviation over 5 years of DexCom is 1.52, which is higher, thus better compared to the benchmark SPY (0.5) in the same period.
• Looking at ratio of annual return and downside deviation in of 0.58 in the period of the last 3 years, we see it is relatively larger, thus better in comparison to SPY (0.42).

Ulcer:

'The Ulcer Index is a technical indicator that measures downside risk, in terms of both the depth and duration of price declines. The index increases in value as the price moves farther away from a recent high and falls as the price rises to new highs. The indicator is usually calculated over a 14-day period, with the Ulcer Index showing the percentage drawdown a trader can expect from the high over that period. The greater the value of the Ulcer Index, the longer it takes for a stock to get back to the former high.'

• Compared with the benchmark SPY (8.88 ) in the period of the last 5 years, the Ulcer Ratio of 22 of DexCom is higher, thus worse.
• Looking at Ulcer Index in of 27 in the period of the last 3 years, we see it is relatively larger, thus worse in comparison to SPY (11 ).

MaxDD:

'A maximum drawdown is the maximum loss from a peak to a trough of a portfolio, before a new peak is attained. Maximum Drawdown is an indicator of downside risk over a specified time period. It can be used both as a stand-alone measure or as an input into other metrics such as 'Return over Maximum Drawdown' and the Calmar Ratio. Maximum Drawdown is expressed in percentage terms.'

• Compared with the benchmark SPY (-33.7 days) in the period of the last 5 years, the maximum reduction from previous high of -58.2 days of DexCom is lower, thus worse.
• During the last 3 years, the maximum reduction from previous high is -58.2 days, which is smaller, thus worse than the value of -33.7 days from the benchmark.

MaxDuration:

'The Drawdown Duration is the length of any peak to peak period, or the time between new equity highs. The Max Drawdown Duration is the worst (the maximum/longest) amount of time an investment has seen between peaks (equity highs). Many assume Max DD Duration is the length of time between new highs during which the Max DD (magnitude) occurred. But that isn’t always the case. The Max DD duration is the longest time between peaks, period. So it could be the time when the program also had its biggest peak to valley loss (and usually is, because the program needs a long time to recover from the largest loss), but it doesn’t have to be'

• The maximum days under water over 5 years of DexCom is 304 days, which is larger, thus worse compared to the benchmark SPY (273 days) in the same period.
• Compared with SPY (273 days) in the period of the last 3 years, the maximum days under water of 304 days is greater, thus worse.

AveDuration:

'The Drawdown Duration is the length of any peak to peak period, or the time between new equity highs. The Avg Drawdown Duration is the average amount of time an investment has seen between peaks (equity highs), or in other terms the average of time under water of all drawdowns. So in contrast to the Maximum duration it does not measure only one drawdown event but calculates the average of all.'

• Compared with the benchmark SPY (57 days) in the period of the last 5 years, the average days below previous high of 76 days of DexCom is larger, thus worse.
• During the last 3 years, the average days below previous high is 109 days, which is greater, thus worse than the value of 73 days from the benchmark.