In the Nextrade (NXT) after-market following the close of trading on the 9th, Protena is showing a strong upward trend, rising sharply compared to the regular session.

Protena closed the regular session at 23,400 won, up 0.65% from the previous day's close. Then, as of 4:11 PM, it recorded 28,550 won on NXT, surging 22.80% (5,300 won). During after-hours trading, the Volatility Control Mechanism (VI) was triggered a total of four times, indicating significant volatility.

Specifically, the first VI was activated at 3:58:42 PM on this day, followed by consecutive activations at 4:00:47 PM and 4:02:47 PM, each of which was subsequently released as price fluctuations continued.

This upward trend began after news broke that the company had signed an option agreement with Samsung Bioepis for joint technology development of a modified antibody and a technology introduction (License-in). Following the positive news, buying interest flowed in not only during the regular session but also after the close, widening the gains.

However, with volatility increasing to the extent that VIs are being triggered consecutively, the short-term stock price direction could vary significantly depending on investor sentiment and supply-demand changes, requiring caution.

[※ This article is provided as reference material for investment decisions, and the final responsibility for investments lies with the investor.]