Samhyun closed up more than 4% in the regular session on the Korea Exchange (KRX) on the 14th, but the post-market quote screen on NexTrade (NXT) showed a price that appeared to retrace the regular-session gain. That day, a stark divergence in share prices opened up between the KRX and NXT, with post-market shifts in supply and demand standing out.

Closes Up 4.43% on KRX… Buying Flows in Late in the Session

On the Korea Exchange on the 14th, Samhyun finished trading at 40,100 won, up 1,700 won from the previous trading day, a gain of 4.43%. In that day's regular session, the stock opened at 38,400 won and soared as high as 40,600 won intraday, with the low also at 38,400 won.

Late-session movement was also strong. The share price, which stood at 39,850 won around 3 p.m., climbed to 40,300 won at 3:05 p.m. and to 40,350 won at 3:10 p.m., as buying flowed in ahead of the regular session's close.

NXT Quote at 38,400 Won… But Beware of '0 Shares' Trading Volume

On NXT, the mood was completely different. The displayed NXT quote screen showed Samhyun at 38,400 won. Compared with the KRX closing price of 40,100 won, that is 1,700 won, or about 4.24%, lower. In effect, the 4.43% gain recorded in the regular session was almost fully retraced in the after-hours market.

However, the fact that the NXT trading volume on the screen is displayed as zero shares must be viewed with clear distinction. It should not be interpreted as a plunge to 38,400 won caused by a flood of large-scale selling actually executed on NXT, because the reference price displayed on the screen and the actual executed price are separate matters.

Designation as an Investment Warning Stock Is Also a Variable

The fact that Samhyun has been designated an investment warning stock due to its recent price surge is also a variable. The Korea Exchange disclosed on the 3rd that it would designate Samhyun as an investment warning stock in connection with the sharp rise in its share price. Investment warning stocks can have their trading halted if, even after designation, they meet certain criteria for further price surges, so short-term investors should also check the related requirements.

Samhyun is expanding its business areas into automotive electronics, defense, and robotics based on its 3-in-1 solution integrating motors and manufacturing machin—no, motors, controllers, and reducers. In particular, it is also developing robot drive systems, including joint modules for humanoid robots, and in step with the market's recent interest in the robot industry, its share price volatility has been expanding.

Key Factors: Whether Trades Execute and Holding the 40,000-Won Level on KRX

Because NXT differs from the regular market in trading hours and supply-demand structure, price gaps with the KRX closing price can occur. In particular, if no trades have actually been executed, one should not conclude that the share price plunged after hours based solely on the price shown on the screen.

Therefore, when assessing Samhyun's next share price trend, it is necessary to check ▲whether actual executions occur on NXT ▲at what level executed prices form ▲and whether the stock can hold the 40,000-won level on the KRX in the next trading session.

[This article is not intended to recommend the purchase or sale of any specific stock. Stock prices can fluctuate sharply depending on corporate performance, disclosures, supply and demand, market conditions, and other factors, and any losses and responsibility arising from investment rest with the investor. AI assisted in part with this article.]