Börsstopp i USA?

Det finns inga givna regler, själv tycker jag inte det är konstigt att börsen faller kraftigt efter 4 års uppgång. 

Mvh telemore

#1

Det finns visst ett flertal givna regler vid börsnedgångar, handeln stoppas vid vissa nivåer 

#2

Var kan man läsa dessa givna regler? 

Jag är för att bevara de Mänskliga Rättigheterna här, detta genom att låta signaturerna här få ha avvikande åsikter.
Mvh telemore

Sök på circuit breakers 

#4 Tack Mange!

Här är en del. Länk

mvh

PS: Du som har AG-Pro kan kostnadsfritt testa min Rysslands-grupp.

Rule 48. Exemptive Relief ? Extreme Market Volatility Condition

(a) In the event that extremely high market volatility is likely to have a Floor-wide impact on the ability of specialists to arrange for the fair and orderly opening of trading at the Exchange and that absent relief, the operation of the Exchange is likely to be impaired, a qualified Exchange officer may declare an extreme market volatility condition with respect to trading on or through the facilities of the Exchange.

(b) In the event that an extreme market volatility condition is declared with respect to trading on or through the facilities of the Exchange, a qualified Exchange officer shall be empowered to suspend (i) the need for prior Floor Official or prior NYSE Floor operations approval to open a security at the Exchange and/or (ii) applicable requirements to make pre-opening indications in a security. Such suspension is subject to the following provisions:

(1)(a) Before declaring an extreme market volatility condition, the qualified Exchange officer shall consider the facts and circumstances that are likely to have Floor-wide impact for a particular trading session, including volatility in the previous day's trading session, trading in foreign markets before the open, substantial activity in the futures market before the open, the volume of pre-opening indications of interest, evidence of pre-opening significant order imbalances across the market, government announcements, news and corporate events, and such other market conditions that could impact Floor-wide trading conditions.

(b) Such review shall be undertaken in consultation with relevant officials of NYSE Market and NYSE Regulation, as appropriate. Following the review, the qualified Exchange officer or his or her designee shall document the basis for declaring an extreme market volatility condition.

(2) The qualified Exchange officer will make a reasonable effort to consult with the staff of the Securities and Exchange Commission before declaring an extreme market volatility condition and granting a suspension of the NYSE rules or procedures. In the event that the qualified Exchange officer cannot reach the Commission staff, the qualified Exchange officer will, as promptly as practicable in the circumstances, inform the Commission staff of such declaration, the basis for such declaration, and what relief has been granted.

(3) An extreme market volatility condition may only be declared before the scheduled opening or reopening following a market-wide halt of securities at the Exchange.

(4) A declaration of an extreme market volatility condition shall be in effect only for the trading session on the particular day that the extreme market volatility condition is determined to exist. The Exchange may declare a separate extreme market volatility condition on subsequent days subject to sections (b)(1) through (b)(3) above.

(5) A declaration of extreme market volatility shall not relieve specialists from the obligation to make pre-opening indications in situations where the opening of a security is delayed for reasons unrelated to the extreme market volatility condition.

(c) For purposes of this Rule, a "qualified Exchange officer" means the Chief Executive Officer of NYSE Euronext, Inc., or his or her designee, or the Chief Executive Officer of NYSE Regulation, Inc., or his or her designee.

Adopted 
 

Vh Björta