THE EFFECTS OF THE ANNOUNCEMENTS OF DIVIDEND INCREASES ON STOCK RETURN VOLATILITY: THE EVIDENCE FROM THE OPTIONS MARKET

This paper examines the impact of the announcements of dividend increases on the volatility of underlying stock returns implied by option prices, and analyses whether the impact is related to the label associated with the dividend increase. The results suggest that the announcements of labelled dividend increases are accompanied by a decrease in implied volatility, while the announcements of unlabelled increases in dividends are associated with no change in implied volatility. These results are consistent with the hypothesis that signal implicit in the announcements of dividend increases provides noisy information about the firm's volatility.     

Interim dividend cuts and omissions in the UK

UK firms that cut or omit interim dividends during the period 1986–1993 are studied. Price reactions to cuts and omissions were found to be significantly negative and stronger for initial reductions. Future earnings variables were found to be predictable from interim dividend reductions. Gearing, company size and interim earnings change variables were found to have explanatory power for the decision to determine whether to cut or omit an interim dividend.     

Stock Return Volatility and Dividend Announcements

This paper is based on models presented in Kim and Verrecchia (1991a, 1991b) relating to share price volatility and the quality of announcements. It investigates the differences in informational quality between dividend cuts and dividend rises, and between interim and final dividend announcements. The results indicate that when dividends are cut, the interim announcement is perceived as being more significant than the final, whereas the reverse is true when dividends are increased. Implied standard deviations suggest that volatility is expected to peak on the day of final announcements. A peak is also expected after interim announcements of a cut in dividend, but not after announcements of an increase.     

Do dividend initiations signal a reduction in risk? Evidence from the option market

We investigate whether dividends convey information about the risk of a company by examining the reaction of implied volatility in the option market to the announcement of a dividend initiation. Implied volatility decreases after the announcement and the magnitude of the decline in volatility is positively related to both the magnitude of cumulative abnormal returns (CAR) in the equity markets and the size of the dividend. Additionally, firms with weaker (stronger) corporate governance experience larger (smaller) declines in implied volatility. Cross sectional analysis shows that a one-standard deviation decline in measures of risk increases the 2-day CAR by 74–137 basis points. Our results suggest that dividend initiations signal declining firm risk.     

An empirical investigation of the factors that determine the pricing of Dutch index warrants

This paper investigates the pricing of Dutch index warrants. It is found that when using the historical standard deviation as an estimate for the volatility, the Black and Scholes model underprices all put warrants and call warrants on the FT-SE 100 and the CAC 40, while it overprices the call warrants on the DAX. When the implied volatility of the previous day is used the model prices the index warrants fairly well. When the historical standard deviation is used the mispricing of the call and the put warrants depends in a strong way on the mispricing of the previous trading day, and on the moneyness (in a non-linear way), the volatility, and the dividend yield. When the implied standard deviation of the previous trading day is used the mispricing of the call warrants is only related to the moneyness and to the estimated volatility, while the mispricing of put index warrants depends in a strong way on the moneyness, the volatility, the dividend yield and the remaining time to maturity.     

金融危机对公司现金股利政策的影响研究——基于股权结构的视角

论文分析了金融危机对上市公司现金股利政策的影响。研究发现,在金融危机期间,上市公司会降低现金股利支付水平,以应对未来的不确定性。但是,相比非流通股比率低的公司,非流通股比率高的公司在金融危机期间更有可能支付更多的现金股利,以满足非流通股股东对于现金的需求。研究还发现,如果公司在金融危机期间发放现金股利,则市场反应更积极,这说明公司通过股利政策向市场传递了积极的信号。但是,非流通股比率高的公司支付现金股利的市场反应要显著小于非流通股比率低的公司,这可能是市场担心非流通股股东利用现金股利侵害中小股东利益。本文研究结论为完善上市公司的现金股利政策和保护中小投资者利益提供了现实启示。     

S&P 100 Index Option Volatility

Using transaction data on the S&P 100 index options, we study the effect of valuation simplifications that are commonplace in previous research on the timeseries properties of implied market volatility. Using an American-style algorithm that accounts for the discrete nature of the dividends on the S&P 100 index, we find that spurious negative serial correlation in implied volatility changes is induced by nonsimultaneously observing the option price and the index level. Negative serial correlation is also induced by a bid/ask price effect if a single option is used to estimate implied volatility. In addition, we find that these same effects induce spurious (and unreasonable) negative cross-correlations between the changes in call and put implied volatility.     

Stock Volatility during the Recent Financial Crisis

This paper uses monthly returns from 1802 to 2010, daily returns from 1885 to 2010, and intraday returns from 1982 to 2010 in the USA to show how stock volatility has changed over time. It also uses various measures of volatility implied by option prices to infer what the market was expecting to happen in the months following the financial crisis in late 2008. This episode was associated with historically high levels of stock market volatility, particularly among financial sector stocks, but the market did not expect volatility to remain high for long and it did not. This is in sharp contrast to the prolonged periods of high volatility during the Great Depression. Similar analysis of stock volatility in the United Kingdom and Japan reinforces the notion that the volatility seen in the 2008 crisis was relatively short‐lived. While there is a link between stock volatility and real economic activity, such as unemployment rates, it can be misleading.     

Are Dividends Disappearing or Shrinking? Evidence from the Istanbul Stock Exchange

This paper examines the dividend payment decision of publicly owned firms listed on the Istanbul Stock Exchange (ISE) from 1991 through 2006. There is a decline in the percentage of net dividend payers, accompanied by a decline in the aggregate level of net real dividends paid. Contrary to the situation in developed markets, earnings and dividends concentration have declined over the sample period. The first mandatory dividend payment regulation pushed some firms to collect the distributed dividends back through rights issues and this resulted in low net dividend payments. One of the striking findings of this paper reveals that a majority of ISE firms prefer dividend omissions rather than dividend reductions. Once a firm keeps paying dividends, it puts much effort into increasing dividend payments rather than reducing them. Further, dividend payment and reduction decisions are affected by the current earnings of the firm and financial crisis significantly explains both the dividend payment and dividend reduction decisions.     

Value relevance of earnings,book value and dividends in an emerging capital market: Kuwait evidence

This study examines the value relevance of book value, earnings and dividends for a sample of all non-financial firms listed on the Kuwait Stock Exchange (KSE) over the period 2003–2009. After controlling for the impact of the global financial crisis, empirical results provide evidence on the value relevance of book value and earnings in the KSE. The results indicate that dividends are not a value-relevant in the presence of earnings in the valuation model. However, when dividends are used as a substitute for earnings they become value-relevant. The explanatory power of the model including both book value and earnings is almost indistinguishable from that of book value and dividends. Furthermore, splitting earnings into dividends declared (or paid) and earnings retained results in each of the two variables becoming value-relevant. The average dividend pay-out ratio tends to increase over time, indicating that dividend policies do matter in the KSE and that dividends in Kuwait are used to boost investors' confidence and support share price, noticeably during the global financial crisis period.     

The Determinants of Implied Volatility: A Test Using LIFFE Option Prices

This paper presents and tests a model of the volatility of individual companies' stocks, using implied volatilities derived from option prices. The data comes from traded options quoted on the London International Financial Futures Exchange. The model relates equity volatilities to corporate earnings announcements, interest-rate volatility and to four determining variables representing leverage, the degree of fixed-rate debt, asset duration and cash flow inflation indexation. The model predicts that equity volatility is positively related to duration and leverage and negatively related to the degree of inflation indexation and the proportion of fixed-rate debt in the capital structure. Empirical results suggest that duration, the proportion of fixed-rate debt, and leverage are significantly related to implied volatility. Regressions using all four determining variables explain approximately 30% of the cross-sectional variation in volatility. Time series tests confirm an expected drop in volatility shortly after the earnings announcement and in most cases a positive relationship between the volatility of the stock and the volatility of interest rates.     

Dividend policy and the global financial crisis: empirical evidence from the Italian insurance industry

The financial crisis has led to controversial discussions about the capital base of the insurance industry. Dividend cuts and capital increases have been suggested to counter diminishing equity. However, some observers seem to fear that investors could interpret a reduction of dividends as a sign for future problems. The empirical evidence from the Italian insurance sector reported here does indeed indicate that dividend smoothing is a relevant economic phenomenon. Therefore, Italian insurance companies should rethink dividend policy rather carefully due to the possible negative consequences of dividend cuts.     

Elective stock and scrip dividends

We investigate firms' decisions to pay elective stock dividends, known in the UK as scrip dividends. Scrip dividends give investors the choice between receiving new shares or the equivalent value as a cash dividend. UK firms paying scrip dividends are more likely to be financially constrained, and scrip dividends are used more when access to external financing is costly. Our results are robust to using the 2008 financial crisis as an exogenous shock to credit supply. Cash preservation is the most important corporate incentive to use scrip dividends as they tend to be distributed in combination with dividend cuts and with major corporate investments such as debt-financed mergers and acquisitions. Analysis of US dividend reinvestment plans by which investors purchase new shares confirms firms' cash-preservation motives.     

The dynamics of dividends,earnings and prices: evidence and implications for dividend smoothing and signaling

This paper examines the dynamic relations among corporate dividends, earnings and prices, and the implications of these relations for dividend signaling and smoothing. A multiple hypotheses testing method is employed to identify causal relations among the three financial variables and to test the empirical implications of dividend smoothing and signaling models. The results show that dynamic relations exist among dividends, earnings and prices. Empirical evidence is consistent with the contention that dividend changes are often driven by both signaling and smoothing motives. Additional tests are developed to differentiate between the dividend signaling and smoothing models. These tests impose restrictions on the dynamics of the financial variables and information signaling. It is found that dividend changes frequently provide information about unexpected changes in future earnings for a little more than a year.     

Investor ambiguity,systemic banking risk and economic activity: The case of too-big-to-fail

This paper examines the relationship between investors' ambiguity in the financial options market and systemic banks' risk. Eliciting ambiguity information from option pricing data on the twelve major U.S. banks between 2003 and 2010, we show that higher behavioral deviations from risk-neutral and Bayesian valuation (i.e., investor ambiguity) are associated with higher systemic banks' downside, market and credit risks. Consistent with behavioral explanations, we confirm the detrimental effect of ambiguity on financial market outcomes and find strong evidence of ambiguity among call and put option holders. Variance decomposition indicates that such a pattern of behavior explains a significant proportion of U.S. banking risk variance. This effect is more pronounced during periods of economic turbulence and bank stress (i.e., the 2007–2009 crisis), and holds after controlling for size, tail risk, implied volatility, and volatility of volatility dynamics. We also document that ambiguity from the financial market has a depressing impact on real economic activity, including capacity utilization, non-farm payrolls and overall economic performance. Our findings are robust to alternative specifications of ambiguity such as multiple priors and expected utilities with uncertain probabilities.     

Fictitious dividend cuts in the CRSP data

We compare CRSP dividend data to data from firms' financial statements in the SEC's EDGAR database. Data screens typically used in the extant literature produce a sample in which about half of the apparent reductions in dividends per share are not actually dividend cuts. Many of the fictitious cuts are due to CRSP misclassifying special dividends as regular dividends. We demonstrate that the fictitious cuts can affect point estimates and inferences in studies of the information content of dividends. We provide a simple filter that eliminates most of the fictitious cuts in our sample – remove dividend cuts from the sample that are preceded by a dividend increase in the prior quarter. This filter produces empirical results that are similar to our sample of true cuts.     

运用Matlab基于LSM方法对羹式期权定价的新探究

传统期权定价方法是通过主观假定初始价格、执行价格、期限、波动率、无风险利率等条件来对期权进行定价,很少联系实际的期权市场报价对期权进行定价。本文根据股票期权市场报价,通过Matlab快速方便地求解出隐含的波动率和无风险利率,并在此基础上运用Matlab基于最／bZ．乘蒙特卡洛模拟（LSM）方法对该股票的美式期权进行定价。本文揭示了如何根据期权市场报价实现隐含波动率和无风险利率的求解,进而结合LSM方法对美式期权进行定价的一种新方法。此外,本文对LSM方法的改进技术也进行了探讨。     

Risk appetite and option prices: Evidence from the Chinese SSE50 options market

This paper studies the relationship between risk appetite and the shape of the implied volatility function for SSE 50ETF options, and examines whether the effects of risk appetite differ on that of call and put options. We propose a new measure of risk appetite using high-frequency data in the stock market. Empirical results show that risk appetite has a significant impact on the level and slope of the implied volatility function, with significant differences between call and put options. In addition, we also find that risk appetite has an obvious asymmetric impact on option prices under the leverage effect.     

Can negative interest rates really affect option pricing? Empirical evidence from an explicitly solvable stochastic volatility model

The profound financial crisis generated by the collapse of Lehman Brothers and the European sovereign debt crisis in 2011 have caused negative values of government bond yields both in the USA and in the EURO area. This paper investigates whether the use of models which allow for negative interest rates can improve option pricing and implied volatility forecasting. This is done with special attention to foreign exchange and index options. To this end, we carried out an empirical analysis on the prices of call and put options on the US S&P 500 index and Eurodollar futures using a generalization of the Heston model in the stochastic interest rate framework. Specifically, the dynamics of the option’s underlying asset is described by two factors: a stochastic variance and a stochastic interest rate. The volatility is not allowed to be negative, but the interest rate is. Explicit formulas for the transition probability density function and moments are derived. These formulas are used to estimate the model parameters efficiently. Three empirical analyses are illustrated. The first two show that the use of models which allow for negative interest rates can efficiently reproduce implied volatility and forecast option prices (i.e. S&P index and foreign exchange options). The last studies how the US three-month government bond yield affects the US S&P 500 index.     

Short-term asymptotics for the implied volatility skew under a stochastic volatility model with Lévy jumps

The implied volatility skew has received relatively little attention in the literature on short-term asymptotics for financial models with jumps, despite its importance in model selection and calibration. We rectify this by providing high order asymptotic expansions for the at-the-money implied volatility skew, under a rich class of stochastic volatility models with independent stable-like jumps of infinite variation. The case of a pure-jump stable-like Lévy model is also considered under the minimal possible conditions for the resulting expansion to be well defined. Unlike recent results for “near-the-money” option prices and implied volatility, the results herein aid in understanding how the implied volatility smile near expiry is affected by important features of the continuous component, such as the leverage and vol-of-vol parameters. As intermediary results, we obtain high order expansions for at-the-money digital call option prices, which furthermore allow us to infer analogous results for the delta of at-the-money options. Simulation results indicate that our asymptotic expansions give good fits for options with maturities up to one month, underpinning their relevance in practical applications, and an analysis of the implied volatility skew in recent S&P 500 options data shows it to be consistent with the infinite variation jump component of our models.