{"title":"现在是表演时间!短期销售价格测试和市场质量","authors":"Karl B. Diether, Kuan-Hui Lee, Ingrid M. Werner","doi":"10.2139/ssrn.910614","DOIUrl":null,"url":null,"abstract":"We examine the effects of the SEC mandated temporary suspension of short-sale price-tests for a set of Pilot securities. While short-selling activity increased both for NYSE and NASDAQ-listed Pilot stocks, returns and volatility at the daily level are unaffected. NYSE-listed Pilot stocks experience more symmetric trading patterns and a slight increase in spreads and intraday volatility after the suspension while there is a smaller effect on market quality for NASDAQ listed Pilot stocks. The results suggest that the effect of the price-tests on market quality can largely be attributed to the distortions in order flow created by the price-tests in the first place. Therefore, we believe that the price-tests can safely be permanently suspended.","PeriodicalId":142706,"journal":{"name":"Fisher: Dice Center for Financial Economics/Finance (Topic)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"395","resultStr":"{\"title\":\"It's Sho Time! Short-Sale Price-Tests and Market Quality\",\"authors\":\"Karl B. Diether, Kuan-Hui Lee, Ingrid M. Werner\",\"doi\":\"10.2139/ssrn.910614\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We examine the effects of the SEC mandated temporary suspension of short-sale price-tests for a set of Pilot securities. While short-selling activity increased both for NYSE and NASDAQ-listed Pilot stocks, returns and volatility at the daily level are unaffected. NYSE-listed Pilot stocks experience more symmetric trading patterns and a slight increase in spreads and intraday volatility after the suspension while there is a smaller effect on market quality for NASDAQ listed Pilot stocks. The results suggest that the effect of the price-tests on market quality can largely be attributed to the distortions in order flow created by the price-tests in the first place. Therefore, we believe that the price-tests can safely be permanently suspended.\",\"PeriodicalId\":142706,\"journal\":{\"name\":\"Fisher: Dice Center for Financial Economics/Finance (Topic)\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-08-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"395\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fisher: Dice Center for Financial Economics/Finance (Topic)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.910614\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fisher: Dice Center for Financial Economics/Finance (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.910614","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
It's Sho Time! Short-Sale Price-Tests and Market Quality
We examine the effects of the SEC mandated temporary suspension of short-sale price-tests for a set of Pilot securities. While short-selling activity increased both for NYSE and NASDAQ-listed Pilot stocks, returns and volatility at the daily level are unaffected. NYSE-listed Pilot stocks experience more symmetric trading patterns and a slight increase in spreads and intraday volatility after the suspension while there is a smaller effect on market quality for NASDAQ listed Pilot stocks. The results suggest that the effect of the price-tests on market quality can largely be attributed to the distortions in order flow created by the price-tests in the first place. Therefore, we believe that the price-tests can safely be permanently suspended.