THE INTRADAY INTERDEPENDENCE STRUCTURE BETWEEN U.S. AND JAPANESE EQUITY MARKETS

Contrary to the efficient market hypothesis, previous research documents a significant correlation between lagged U.S. close-to-close stock market returns and current open-to-close Japanese equity market returns. We find that the significant correlation is limited to the first hour of Japanese trading, with subsequent hourly returns independent of lagged U.S. returns. This evidence suggests that the documented significant correlation is attributable to a sticky Japanese opening value associated with the use of nonsynchronous index data.     

CO-MOVEMENTS IN INTERNATIONAL EQUITY MARKETS

We examine the co-movements of equity returns in four major international markets by characterizing the time-varying cross-country covariances and correlations. Using a generalized positive definite multivariate GARCH model, we find that the Japanese and U.S. stock markets have significant transitory covariance, but zero permanent covariance. The other pairs of markets examined display significant permanent and transitory covariance. We also find that, while conditional correlations between returns are generally small, they change considerably over time. An event analysis suggests that basing diversification strategies on these conditional correlations is potentially beneficial.     

INTRADAY VARIATIONS IN TRADING ACTIVITY,PRICE VARIABILITY,AND THE BID-ASK SPREAD

In this paper intraday variations in trading activity and the bid-ask spread are examined. Intraday variations in volume and price variability demonstrate a U-shaped pattern as in previous studies. However, I find a U-shaped pattern for a measure of the spread component that is related to the degree of information asymmetry between the specialist and informed traders and an inverted U-shaped pattern for the other spread component related to inventory and order costs. Two alternative explanations are given.     

PRIVATE EQUITY INVESTING IN EMERGING MARKETS

After a proliferation of emerging market funds in the 1990s, growth has slowed drastically due to disappointing preliminary results. Private sector funds initially appeared promising because of the burgeoning demand for capital in emerging markets, the new receptivity of governments to foreign investors, and the prospect of high returns. But in many cases, the regulatory and legal frameworks did not provide adequate investor protection, and dramatic differences in accounting standards, corporate governance, and exit potential created problems. These problems are often accentuated because local owners are adept at navigating the legal and accounting systems, placing investors at a disadvantage.
As global competition intensifies, local policies, regulations, and business practices are becoming increasingly important in attracting investors. Local governments must institute the reforms necessary to improve the investment environment, including the strengthening of shareholder rights and corporate governance standards and improving access to public equity markets. Development finance institutions must provide direction and leadership in these areas. And fund managers must align their business models more closely with emerging market realities by establishing a local presence, adopting a more hands-on approach to monitoring their investments, and developing creative exit strategies.     

INFORMATION ASYMMETRY AND OPTIONS TRADING

This paper demonstrates that options trading does not have a uniform impact on the volatility of underlying stocks. Although uninformed traders are able to hedge the risk of underlying stocks by maintaining opposite positions in the options market, informed traders hold outright options positions to capitalize on their information. This hedging behavior tends to reduce noise in the stock market, whereas the speculating behavior tends to generate noise in the stock market. As a result, stocks that were originally volatile, i.e., traded primarily by uninformed traders, will be stabilized by the introduction of options. Conversely, stocks that were more stable become destabilized by options trading.     

TRADING TIME EFFECTS IN FINANCIAL AND COMMODITY FUTURES MARKETS

Through the examination of one commodity contract, soybeans, and one financial contract, U.S. Treasury bonds, the authors test to determine (1) whether mean rates of return during trading times differ from mean rates of return during nontrading times; (2) whether mean returns during trading times and nontrading times differ by day of the week; (3) whether trading time returns differ significantly from previous nontrading time returns; and (4) the extent to which trading and previous nontrading returns are correlated. In addition, the authors empirically examine a possible explanation for the results obtained.     

THE CHOICE OF TRADING VENUE AND RELATIVE PRICE IMPACT OF INSTITUTIONAL TRADING: ADRs VERSUS THE UNDERLYING SECURITIES IN THEIR LOCAL MARKETS

We address two important themes associated with institutions’ trading in foreign markets: (1) the choice of trading venues (between a company's listing in its home market and that in the United States as an American Depositary Receipt [ADR]) and (2) the comparison of trading costs across the two venues. We identify institutional trading in both venues using proprietary institutional trading data. Overall, our research underscores the intuition that the choice of institutional trading in a stock's local market or as an ADR is a complex process that embodies variables that measure the relative adverse selection and liquidity at order, stock, and country levels. Institutions route a higher percentage of trades to more liquid markets, and these trades are associated with higher cumulative abnormal returns. We also find that institutional trading costs are generally lower for trading cross‐listed stocks on home exchanges even after controlling for selection bias.     

A TRANSACTION DATA STUDY OF DAY-OF-THE-WEEK AND INTRADAY PATTERNS IN OPTION RETURNS

In this study common stock, call, and put option returns from 1983 to 1985 are examined by day of the week and time of day. Stock and call return patterns generally are similar, both having relatively low weekend returns and relatively high returns late in the trading day. Put options have high weekend returns, but do not have low returns late in the trading day.     

USING EXCHANGE-TRADED EQUITY FLEX PUT OPTIONS IN CORPORATE STOCK REPURCHASE PROGRAMS

Casual evidence suggests that as many as 10% of the companies repurchasing their stock over the past decade have used the sale of puts on the company's stock as part of the repurchase program. This article describes a new instrument for such corporate stock buybacks recently introduced by the American Stock Exchange: Equity Flex puts on the issuer's stock. When and if the puts are exercised, the company's shares are retired—often on better terms and with better cash flow timing than the company could achieve with a conventional stock repurchase program.
To date, such stock repurchase programs have been conducted primarily using over-the-counter put options. The new Equity Flex puts promise to eliminate the relative advantages of OTC transactions and offer stock repurchasers better pricing and increased liquidity. Use of exchange markets can also help overcome any reluctance a financial officer might have to rely on prices offered by a single dealer.     

PRICE PRESSURE OF TRADING AND EQUITY PRICES IN HEDGE FUND ACTIVISM

In this article, I offer and examine a price pressure hypothesis, which states that stock prices of activism targets temporarily deviate from fundamentals. Increased demand for target stocks upon the formation of activist positions exerts upward pressure on targets’ stock prices in the short term. Such effects are driven by illiquid stocks whose prices are sensitive to order-flow imbalances. When activists use private transactions, price pressure effects are muted. As buying pressure subsides and reverses over the long run, targets’ stock prices decline proportionately to predisclosure accumulations, driven again by illiquid stocks. These price dynamics have important implications for activists’ block-formation strategies and, more generally, shareholder activism.