纳斯达克100指数跟踪股的产品与运作解析

本文深入分析了Nasdaq100指数跟踪股(简称QQQ)这只美国著名的交易所交易基金(ETFs)的产品设计、基本特征、组织架构及其双重交易模式和由此而生的独特的套利机制,总结了Nasdaq100指数跟踪股的独到的金融创新之处,为理解和借鉴国外ETFs的产品创新和成功运作的经验提供了一个有益的帮助。     

竞争力、市场微观结构与证券交易所变革

纽约证券交易所和纳斯达克实施的重大并购行动标志着全球证券交易所新一轮并购浪潮的兴起,证券交易所之间的竞争再度趋于白热化.交易所之间的竞争已演变为市场微观结构的竞争.本文对纽约证券交易所和纳斯达克的交易成本进行了比较,无论是上市成本还是交易成本,新兴的纳斯达克都比传统的纽约证交所更胜一筹.因而本文认为有效降低交易成本应是提高交易所核心竞争力的关键所在,而改进交易机制、拓展产品服务以及调整组织架构,可以作为降低交易成本、提高交易所竞争力的具体竞争策略.     

Trading frequency and event study test specification

We examine the effects of thin trading on the specification of event study tests. Simulations of upper and lower tail tests are reported with and without variance increases on the event date across levels of trading volume. The traditional standardized test is misspecified for thinly traded samples. If return variance is unlikely to increase, then Corrado's rank test provides the best specification and power. With variance increases, the rank test is misspecified. The Boehmer et al. standardized cross-sectional test (Event-study methodology under conditions of event-induced variance, Journal of Financial Economics 30, pp. 253–272) is properly specified, but not powerful, for upper-tailed tests. Lower-tailed alternative hypotheses can best be evaluated using the generalized sign test.     

Price discovery in tick time

This paper develops a tick time model for the quote setting dynamics on Nasdaq. The model decomposes quotes into an efficient price, asymmetric information and noise. Both the evolution of the efficient price and the information contents of quotes depend on quote durations. New measures for the contribution to price discovery are defined within this model. When aggregated to fixed calendar time intervals, they relate closely to Hasbrouck [Hasbrouck, Joel, 1995, One security, many markets: determining the contribution to price discovery, Journal of Finance 50, 1175–1199] information shares. Empirical results for 20 Nasdaq stocks indicate that ECNs, in particular Island, contribute most to price discovery for active stocks. For less active stocks, wholesale market makers contribute most.     

Filter Tests In Nasdaq Stocks

This study examines the performance of filter and dual moving-average crossover trading rules applied to Nasdaq stocks. We find that trading rules conditioned on a stock's past price history perform poorly, but those based on past movements in the overall Nasdaq Index tend to earn statistically significant abnormal returns. Since there is a high level of transaction costs in this market, these abnormal returns are generally not economically significant. However, there are indications that pursuing some of these strategies can be worthwhile in carefully selected subsets of stocks.     

An Empirical Examination of The Nasdaq/CHX Dual-Trading Experiment

We analyze the effects of the SEC's experimental Nasdaq/CHX dual-trading program. The program, which began in 1987 and continues to the present, establishes an experiment in which the costs and benefits of competition between dealer and specialist market structures can be observed directly. Our primary finding is that the program led to significantly reduced mean quoted and percentage spreads for the dual-traded issues. Further, even though the CHX specialists quote lower spreads, they are not able to garner a significant number of trades from Nasdaq.     

Market structure and bid-ask spreads: IBIS vs Nasdaq

A comparison is made between the bid-ask spreads of 30 high volume German stocks traded on IBIS and 30 high volume US stocks traded on Nasdaq. IBIS and Nasdaq are best described as agency and dealer auction markets, respectively. On average, the market spread for these IBIS and Nasdaq stocks is the same, but for the 10 most active stocks in each market, IBIS spreads are considerably lower. For these latter stocks, IBIS spreads change in a predictable manner throughout the day. Nasdaq spreads do not. The critical factor appears to be the unrestricted access of suppliers of immediacy that is distinctive for agency auction markets.     

基于CCK模翟的中美创业板市场羊群效应比较

羊群效应是近年来金融研究的热点,被认为是引起金融市场混乱的原因之一。本文运用CCK模型分别对我国创业板及美国纳斯达克市场的羊群效应进行了实证研究。通过研究发现,在所选数据期间内（2011年7月1日至2012年9月30日）,我国创业板存在较为明显的羊群效应,而美国纳斯达克市场则没有出现。本文分析了上述现象产生的原因,并提出相应的政策建议。     

Nasdaq and The Chicago Stock Exchange: An Analysis of Multiple Market Trading

We analyze a set of 97 NASD-listed securities that trade on both the Nasdaq and Chicago Stock Exchange (CHX) to determine if trading costs and price improvement differ between the two markets. We find that order execution costs, which we define by the traded spread and the signed effective half-spread, are significantly lower on the CHX. This difference is consistent over trade types and for trades of at least 1,000 shares. Also, we find that trades occurring on the CHX receive more price improvement than do those occurring on Nasdaq.