Rule 10a-1

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Rule 10a-1

An SEC rule that formerly prohibited a short sale except on a plus tick or a zero plus tick. That is, Rule 10a-1 disallowed short sales at a price below the price at which the security traded most recently. This rule was intended to prevent short sellers from artificially deflating a security's price so that it harmed other investors. It was also called the uptick rule. It was replaced by Regulation SHO in 2007. Some have argued for its reintroduction.

Rule 10a-1

A 1939 SEC rule that prohibits the short sale of a security at or below the last price at which that security was traded, unless the last price was higher than the previous different price. Rule 10a-1 was instituted to keep short sellers from battering down the price of a stock.

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short sale Uptick Rule			The first Short Sale Rule, Rule 10a-1 of the 1934 Exchange Act was approved by the SEC in 1938 in response to a sharp market decline in the fall of 1937. Regional Investment Bankers Association Works With NASD To Establish ... by Business Wire			Royal Mint royalty Royalty Income Trust Royalty Interest Royalty Trust RP RPIX RPPP RRM RRSP RSA RSD RSI Rt RTS RTS Index RU RUB Rubber Band Effect Rubber Check Rubber Stamp Ruido Rule 104 Rule 105 Rule 105b-1 Rule 10a-1 Rule 10b-10 Rule 10b-13 Rule 10b-16 Rule 10b-2 Rule 10b-4 Rule 10b-6 Rule 10b-7 Rule 10b-8 Rule 10b5-1 Rule 11A Rule 13-d Rule 13d Rule 13e Rule 14-d Rule 144 Rule 144A Rule 145 Rule 14a Rule 14e-3b Rule 156 Rule 15c2-1 Rule 15c3-1 Rule 15c3-2 Rule 15c3-3 Rule 17f-1			RUL RUL RULA rulable rulable rulable rulable rulable Rúlái Ruland Rulang Primary School Rular Rular Rular Rulbus Device Class Library RULC rule rule rule rule rule rule rule Rule (measurement tool) Rule (measurement tool) Rule (measurement tool) Rule 104 Rule 105 Rule 105b-1 Rule 105b1 Rule 10a-1 Rule 10a1 Rule 10b-10 Rule 10b-13 Rule 10b-16 Rule 10b-2 Rule 10b-4 Rule 10b-6 Rule 10b-7 Rule 10b-8 Rule 10b10 Rule 10b13 Rule 10b16 Rule 10b2 Rule 10b4 Rule 10b5-1 Rule 10b51 Rule 10b6 Rule 10b7 Rule 11A Rule 13-d Rule 13-e Rule 13D Rule 13e Rule 14-a

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