We model the behavior of Nasdaq momentum traders, also known as SOES bandits. We show, all things being equal, that the profitability of SOES bandits decreases in the bid-ask spread, but increases in the effective tick size. The patterns we observe in the data provide support for the model. We then discuss the plausibility of odd-eighth tick avoidance by market makers as a defense against SOES ...

In this study we examine the evolution of price, volume, and the bid-ask spread after extreme 15 minute intraday price changes on the NYSE and the NASDAQ. We find that due to strong behavioral trading there is an overreaction. Furthermore we find that volatility which increases sharply at the event decays according to a power law with an exponent of ≈ 0.4, i.e., much faster than the autocorrela...

This paper develops a smooth transition GARCH model with an asymmetric transition function, which allows for an asymmetric response of volatility to the size and sign of shocks, and an asymmetric transition dynamics for positive and negative shocks. We apply our model to the empirical financial data: the NASDAQ index and the individual stock IBM daily returns. The empirical evidence shows that ...

We have applied the Zipf method to extract the ζ ′ exponent for seven financial indices (DAX, FTSE; DJIA, NASDAQ, S&P500; Hang-Seng and Nikkei 225), after having translated the signals into a text based on two letters. We follow considerations based on the signal Hurst exponent and the notion of a time dependent Zipf law and exponent in order to implement two simple investment strategies for su...

Community structure detection is an important and valuable task in financial network studies as it forms the basis of many statistical applications such prediction, risk analysis, recommendation. Financial networks have a natural multi-grained that leads to different community structures at levels. However, few pay attention these multi-part features networks. In this study, we present geometri...

Traditional odd lot trades (i.e., involving fewer than 100 shares) now comprise over half of all equity on U.S. exchanges. Under Regulation National Market System, however, these are excluded from a market center’s trade execution statistics. In addition, while brokers required to consider quotes as part their duty best execution, formally the calculation national bid and offer. This Article, w...

Based on GARCH-MIDAS model and its five extend models, this paper studies the effect of asymmetric jump stock volatility. According to research NASDAQ, we find that can be beneficial in-sample fitting out-of-sample forecasting, especially short-term long-term effect. Regulators investors use forecast

CAMBRIDGE, Mass.--(BUSINESS WIRE [2])--The U.S. Food and Drug Administrat ion (FDA) approved Biogen’s [3] (NASDAQ: BIIB) SPINRAZATM (nusinersen) under Priority Review for the treatment of spinal muscular atrophy (SMA) in pediatric and adult patients. SPINRAZA is the first and only treatment approved in the U.S. for SMA, a leading genetic cause of death in infants and toddlers that is marked by ...

CAMBRIDGE, Mass.--(BUSINESS WIRE [2])--The U.S. Food and Drug Administrat ion (FDA) approved Biogen’s [3] (NASDAQ: BIIB) SPINRAZATM (nusinersen) under Priority Review for the treatment of spinal muscular atrophy (SMA) in pediatric and adult patients. SPINRAZA is the first and only treatment approved in the U.S. for SMA, a leading genetic cause of death in infants and toddlers that is marked by ...

Boston, MA, April 29, 2016 --Immunomedics, Inc. (Nasdaq: IMMU) today announced that objective durable responses have been achieved with sacituzumab govitecan, its lead antibodydrug conjugate (ADC), in a number of patients with advanced, metastatic solid cancers, after failing multiple prior therapies, some including checkpoint inhibitors (CPIs). The ADC has previously been granted Breakthrough ...