This paper examines the price dynamics in the S&P 500 and Nasdaq-100 index futures contracts. By utilizing transactions data with attached trader type identification codes, we are able to analyze price dynamics for trades initiated by exchange locals and off-exchange customers. The empirical results show that price discovery appears to be initiated in the E-mini index futures contracts and that trades initiated by exchange locals seem to be more informative than those initiated by off-exchange traders. Furthermore, results show that exchange locals appear to make informed trades on the E-mini contracts around large trades that occur on the open outcry floor. We maintain that the exchange locals' ability to observe pit dynamics may contribute toward explaining the price leadership of the Emini contracts. Overall, the results are consistent with the notion that exchange locals are informed traders who derive their informational advantage from the proximity to order flow.

This paper examines the impact of the introduction of the Nasdaq‐100 Index Tracking Stock (referred to as Cubes) on the pricing relationship between Nasdaq‐100 futures and the underlying index. Observations obtained from tick‐by‐tick Nasdaq‐100 futures transactions and index value data support the hypothesis that the introduction of Cubes in March 1999 has led to improvements in the Nasdaq‐100 index futures pricing efficiency. Both the size and frequency of violations in futures price boundaries appear to be reduced. Furthermore, there appears to be an increase in the speed of the market response to observed violations. These results are attributed to the increased ease in establishing a spot Nasdaq‐100 index position after the introduction of the tracking stock. © 2002 John Wiley & Sons, Inc. Jrl Fut Mark 22: 197–218, 2002

Although managers frequently release earnings forecasts, little is known about how this information affects investor beliefs. This study compares changes in analyst earnings forecasts following the release of management forecasts: (1) to changes in analyst forecasts of a control sample of nonforecasting firms; and (2) between management forecasts with differing degrees of accuracy. The forecasting error of analyst estimates for firms releasing management forecasts decreases more rapidly than the errors associated with the control firms, which implies that management forecasts are useful. Analysts apparently are capable of determining which management forecasts are most accurate and responding appropriately.

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New evidence is presented on the nature of the Monday effect in stock market returns. Using stock returns for the years 1962‐1986, the Monday effect is found to be confined to periods of negative market returns. Monday's returns are no different from other weekday returns in periods of positive returns. In addition, trading volume and the Monday effect are related. Monday's volume is lower than the other weekdays. When returns are compared controlling for trading volume, we find that the Monday effect is confined to negative return periods with above normal volume, which represent only two per cent of the sample period.