organizeShort selling was fully resumed for all KOSPI and KOSDAQ stocks on March 31, 2025. No-debt blocking과 Increased surveillanceis a key supplementary point, Check short selling balances by stockIt is important to make this a routine. Reopening date과 safety devicePlease check first.
Short selling was fully resumed on March 31, 2025, following the end of a ban of approximately 17 months that began in November 2023. The criteria for resumption were met through the introduction of a system to block naked short selling and strengthened monitoring of unfair trading. Individual investors are advised to regularly check the short selling balance and lending balance for each stock.
Key Checkpoints
The key point is that the timing of the full resumption and safeguards have been implemented simultaneously. The resumption date is March 31, 2025, and the measures apply to all listed stocks on the KOSPI and KOSDAQ. The enhanced system consists of a computerized system to block naked short selling, strengthened real-time monitoring, and stricter sanctions against unfair trading. Starting point for investment decisionsIt is a routine that periodically checks the short selling balance and lending balance for each stock.
Why was it fully resumed?
The decision was made based on institutional improvements implemented during the ban period. The ban, which began in November 2023, secured time to mitigate market disruption, during which time systems for detecting naked short selling and monitoring bid-unit levels were introduced. These institutional improvements are expected to enhance monitoring capabilities and significantly increase the likelihood of detecting naked short selling. Therefore, the resumption is a measure premised on securing the credibility of the system.
What should individual investors check?
The first thing to do is to get into the habit of regularly checking the short selling and lending balances for each stock. Stocks with a high proportion of short selling balances may experience increased volatility, so a conservative approach is necessary. Completion of mandatory prior educationCheck the requirements for each brokerage firm and react sensitively to changes in figures disclosed on trading platforms. WeeklyBy checking balance fluctuations, you can detect rapid increases early.
Comparison of institutional changes
A simple comparison allows you to see the before and after changes at a glance. The table below summarizes the major differences between the period before the ban and after the resumption. By examining the differences by system, it is easy to determine which factors contribute to market stability. Strengthening the surveillance systemis the central change.
| item | Before the ban | After resumption |
|---|---|---|
| applied area | Some items or limited permission | All KOSPI and KOSDAQ stocks |
| Prevention of naked short selling | Vulnerable before system improvements | Introduction of system blocking and real-time monitoring |
| Monitoring and Sanctions | Existing regulations | Strengthening sanctions standards for unfair trade |
Expected Impact and Response Strategy
In the short term, downward pressure may arise on stocks experiencing a surge in short selling balances. Particular caution is advised regarding stocks undergoing a correction phase following a sharp rise, as there is a possibility that short selling will be concentrated in these areas. The response strategy involves limiting risk through stop-loss rules and position size management. From a data-driven perspective, increased surveillance is likely to lead to a higher detection rate of naked trading compared to the past, suggesting significant potential for improvement in market order.
| action | Expected effect | Precautions |
|---|---|---|
| Regular balance check | Early detection of the surge in short selling | Caution regarding errors in information interpretation |
| Split buying and split selling | Volatility management | Possibility of fee increase |
| Check brokerage lending conditions | Identifying risks of loan supply shortages | Differences in information provision by platform |
Final key point
Please keep in mind that the resumption of short selling was made possible by improvements to the system. The reopening date is March 31, 2025.And, the individual's core routine is to consistently check the balance and lending status of each stock. Naked short selling blocking deviceStrengthening surveillance is highly likely to have a positive effect on market stability. Please make investment decisions cautiously based on the figures and the status of system improvements.
Frequently Asked Questions
When and for which stocks was short selling fully resumed?
Short selling was fully resumed on March 31, 2025, and applies to all listed stocks on the KOSPI and KOSDAQ.
What are the key safety measures introduced with the resumption?
Key improvements include the introduction of a system to block naked short selling, enhanced real-time monitoring, and stricter sanctions against unfair trading.
Why was short selling fully resumed?
The decision to resume was made based on the fact that institutional improvements were made during the approximately 17-month ban period starting in November 2023, strengthening capabilities for detecting and monitoring non-borrowing.
What should individual investors check and respond to?
It is recommended to establish a routine to regularly check short selling and lending balances by stock, complete mandatory prior training, and verify the requirements of each securities firm.