Nicholas Valerio designed and teaches two advanced elective courses on Derivative Financial Assets. In addition, he teaches or has taught courses on Fixed Income Securities, Corporate Finance, Advanced Financial Topics, and an undergraduate Finance Honors Seminar. Prior to entering academia Nicholas worked in the Capital Markets group of Citibank in the sales and trading area of the Money Market Division. He combines academic theory and his professional experience for a pragmatic view of the financial markets in his research and teaching. Nicholas has also been a Visiting Professor at The Wharton School of the University of Pennsylvania where he taught a Derivative Financial Assets course.
PhD in Financial EconomicsThe Wharton School, University of Pennsylvania
MA in Financial EconomicsThe Wharton School, University of Pennsylvania
BS in Operations Research, concentration in Applied EconomicsSchool of Engineering and Applied Science, Columbia University
BS in Mathematics and ScienceProvidence College
The effects of trading halts on price discovery for NYSE stocks
Taylor & Francis Ltd.
January 10, 2003
This article uses intraday data for the year 1992 to investigate the effect of trading halts on price discovery for stocks traded on the New York Stock Exchange. The results show that the degree of benefits from trading halts depends on the types of halts and significance of the news items. It is found that trading halts reduce price dispersion when trading is halted due to imbalance in order flows. Such a positive effect is robust to the significance of news items. Trading halts can help price discovery when trading is halted due to the fact that some significant news items already hit the market and investors need more time to digest the impacts on price. In contrast, when officials call for the halt due to the pending news release with little significance, trading halts actually inject more noise into the prices and undermine the price discovery process. Overall, the results are consistent with the argument by exchanges that trading halts help dissipate information and facilitate the price discovery process.
The Market for Equity Options in the 1870s
American Finance Association
September 1, 1997
The introduction of exchange-traded options in 1973 led to explosive growth in the stock options market, but put and call options on equity securities have existed for more than a century. Prior to the listing of option contracts, trading was conducted in an order-driven over-the-counter market. From 1873 to 1875, quotes for options contracts were published weekly in The Commercial and Financial Chronicle during a period that saw extensive marketing efforts by a number of brokerage firms. In this article we examine these quotes to determine why this seemingly sophisticated market existed for only a brief period in financial history.