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An Application of Volatility Estimators

Posted on August 3, 2021 By 
Volatility estimators are a useful tool in volatility trading and risk management. We have discussed several types of volatility estimators, ranging from the simple Close-to-Close Historical Volatility to more complex ones like the Garman-Klass-Yang-Zhang volatility. As discussed in Reference , volatility estimators can also be used directly in delta-one trading …
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Are Accounting Numbers Useful?

Posted on July 31, 2021 By 
Accounting numbers are prevalent in financial reporting, business valuation, and investment management. They’re so frequently used that the practitioners rarely asked pragmatic questions such as: are they useful, do they account for some meaningful risks, can they be used to price assets. A recent article attempts to bring some …
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Pricing Convertible Bonds Using Monte-Carlo Simulations

Posted on July 28, 2021 By 
Convertible bonds are complex securities that are part debt, part equity. The main feature of a convertible bond is the conversion that allows the bondholder to convert debt to equity. In addition, there can be many other “exotic” features such as callable, puttable, forced conversion, soft call, contingent conversion, etc. …
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Are Index Options Markets Efficient?

Posted on July 25, 2021 By 
Options market efficiency is a topic of interest not only to academics but also to practitioners. There is a body of research focusing on market inefficiency. For example, we recently highlighted a research paper dealing with sector ETFs’ implied volatilities and correlations. The research result implies that the options market …
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Can Dividend Yield Be Negative?

Posted on July 14, 2021 By 
We previously discussed implied dividend yield and how to extract it from traded financial instruments. Given that dividend is considered a cash payment the shareholder receives when holding a stock, naturally one would think that dividend yield can only be zero or positive. We recently, however,  worked with a client …
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Volatility Term Structure of the DAX Index

Posted on June 20, 2021 By 
Volatility term structure is believed to be a common phenomenon across asset classes. In equity indices, it’s well-known that implied volatility (IV) is generally greater than realized volatility (RV) (i.e. there exists a so-called volatility risk premium), and out-of-the-money (OTM) IV is greater than at-the-money (ATM) IV (i.e. there exists …
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Does Intraday Momentum Exist in Stock Indices?

Posted on June 14, 2021 By 
Most of the studies on time-series momentum have been performed in the daily, weekly, and monthly timeframes. Relatively less research has been conducted in the intraday timeframe. So naturally, we would ask the question: Does the momentum exist intraday? Reference answers this question. It examined the time-series momentum of …
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Does Trend Following Work on Single-Name Stocks?

Posted on June 9, 2021 By 
Trend following is a popular trading strategy used by Commodity Trading Advisors (CTA) and Hedge Funds around the world. The traded assets are often futures on commodities, FX, fixed-income, and equity indices. We previously demonstrated that stock indices exhibit trending property in the long term, i.e. their returns are positively …
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