Brief introduction of oolong finger incident

For example, you are going to buy a stock of 15 yuan, and you accidentally hit it as 18 yuan when you hit the keyboard; Or you are going to sell a stock that is about to stop trading at the daily limit, but you accidentally click buy. This kind of event is called "Oolong Finger Event".

In addition to warrants, the China stock market has a price limit, and the loss of the Oolong Index is relatively small, while most foreign stock markets do not have a price limit, and the corresponding losses are very large. For example, at 20 10.05.06, the Dow fell below 1000 in intraday trading and quickly pulled back. Some people suspect that it is an oolong index. The biggest oolong incident in the world is "12.8 Oolong Incident". On the morning of 12.8, 2005, a trader of Mizuho Securities Co., Ltd. in Japan mistakenly changed the customer's instructions and sold 1 J-COM shares at the price of 1 yen per share.

Oolong means that when the trading volume is large, the stock price will fluctuate greatly in an instant; However, the prices of some stocks in the market fluctuated sharply in an instant. For example, a stock with a normal share price suddenly falls by five points or more, and then quickly pulls back. This may also be a "rat warehouse".

Due to the problems in the "Oolong Finger" trading system, the Indian stock market is currently experiencing a short-term plunge. The share prices of India's Tata Motors and Autodesk Cement suddenly plunged by 65,438+00% half an hour before the Indian stock market closed, and then recovered their lost ground within a minute or two. The National Stock Exchange said it would investigate the reasons for the stock price decline. Due to the operational error of a brokerage company, the Indian stock market "crashed by lightning" on June 5, 2009, forcing the trading of the national stock exchange to be suspended 15 minutes.

According to the exclusive information of 2 1 century. com, in August of 20 13, the A-shares rose sharply because of the 7 billion own goal of Everbright Securities. Most of the morning session was dominated by sideways shocks. 1 1: 05 or so, financial stocks, real estate stocks, oil stocks and other stocks all showed strange soaring. The Shanghai Composite Index soared 100 points, or 5%. The epidemic lasted only about two minutes. Then, although the Shanghai Composite Index fell back, the upward trend did not change. In the afternoon, financial stocks rioted in an all-round way, and the Shanghai Composite Index soared to the half-year line.

2065438+February 9, 2005, in China foreign exchange market, the first opening price of RMB against USD was obviously wrong due to an input error by a market maker. After coordination by both parties, the transaction was cancelled, and the information service provider who provided the quotation immediately corrected it.

At present, the revised opening quotation of RMB against the US dollar is 6.2495, which closed at 6.2447 last day. The original wrong quotation was 6. 15 10.