[THE INVESTOR] On Sept. 13, Peptron (087010) rose 0.8% to 44,250 won (US$39.52). It had declined 14.2% through the past month. Standard deviation, the volatility index for stock price, was 2.1% over the same period of time over one month.

Compared with its close competitors within the same industry, KOSDAQ, even though the monthly earnings rate of Peptron was negative, its volatility for one month was relatively higher among its peer group. Over the recent month, the return-on-risk, the return on investment with consideration about risk, was -6.7%. Though the volatility was high, low decreasing rate of stock price lead that the return-on-risk remained around the average of its peer group. In spite of that, the return-on-risk is much better than the industrial mean, -8.1, and thus the industrial comparison performance was positive.