نتایج جستجو برای: nasdaq
تعداد نتایج: 590 فیلتر نتایج به سال:
A dealer needs access to order flow and information to make a market profitably in a Nasdaq stock. Several variables that proxy for the stocks that an individual market maker’s brokerage customers trade, including volume, location, underwriting participation and analyst coverage, are significant determinants of market making activity. Informational advantages may also factor in the market makin...
This paper disentangles direct spillovers and common factors as sources of correlations in simultaneous heteroscedastic systems. While these different components are not identifiable by standard means without restrictions, it is shown that they can be pinned down by specifying the variances of the latent idiosyncratic and common shocks as ARCH-type processes. Applying an adapted Kalman filter e...
We examine the forecast quality of Chicago Board Options Exchange (CBOE) implied volatility indexes based on the Nasdaq 100 and Standard and Poor’s 100 and 500 stock indexes. We find that the forecast quality of CBOE implied volatilities for the S&P 100 (VXO) and S&P 500 (VIX) has improved since 1995. Implied volatilities for the Nasdaq 100 (VXN) appear to provide even higher quality forecasts ...
با توجه به تاکید کمیته بال بر لزوم استفاده از مدلهای داخلی ارزش در معرض خطر (VaR) دهروزه، به-منظور مشخصکردن حداقل سرمایه پشتیبان ریسک بازار و کاستیهای قاعده جذر زمان، در این پژوهش هدف ارائه برآوردهای دقیقتر از VaR چند دورهای با استفاده از شانزده روش، برای شاخص کل بورس اوراق بهادار تهران (TEPIX)، NASDAQ و FTSE می باشد. نتایج براساس مجموع معیارهای تابع زیان و کارایی نشان میدهد، مدل شبیه...
Isaac Saias, and others for their valuable comments and suggestions. We thank Paula Lozar for editing help. We acknowledge Nasdaq's financial support in working on this project. Usual disclaimer applies.
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