This study aims to see the effect of variable positive confirmed cases covid 19, death return on assets (ROA), leverage, liquidity and company size (size) cumulative abnormal returns (CAR) during Covid 19 pandemic. Samples used in this research is purposive sampling. was conducted LQ45 companies listed IDX 2020 COVID The results hypothesis testing showed that Positive Cases for Return (ROA) Com...

Penelitian ini bertujuan mengetahui dan menganalisis perbedaan abnormal return saham pada masa tidak pandemi covid 19. Kondisi 19 ditandai dengan pengumuman sebagai global sampai new normal. Sedangkan pembanding akan dibuat secara matching atau mengikuti data dilakukan perusahaan sub sektor telekomunikasi farmasi yang listing diBursa Efek Indonesia. Variabel diukur adalah menggunakan harian. Ab...

The COVID-19 outbreak has severely affected equity markets and most stock index around the world. Indonesia is no exception, social restriction policy (PSBB) imposed by government caused IHSG to be corrected negatively. One of sectors that was at beginning pandemic property sector. This study aims see reaction sector stocks due Covid-19 incident abnormal returns occurred during early days pande...

This study was designed to evaluate the degree of placenta share discordance in relation to the betamethasone-induced return of positive end-diastolic flow in monochorionic twin pregnancies with selective intrauterine growth restriction (sIUGR) and abnormal umbilical artery Doppler. Monochorionic twins with sIUGR was defined as one twin having an estimated fetal weight below the 10th percentile...

We find large overnight returns with no abnormal variance before nonfarm payrolls, ISM, and GDP announcements, similar to the pre-FOMC returns. To explain this common pattern, we propose a two-risk model uncertainty about magnitude of impending news’ market impact as an additional risk, link pre-announcement return directly accumulation heightened its later resolution prior announcement. empiri...

We report simulations of abnormal buy-and-hold stock return tests. Using benchmark portfolios purged of new-listings and rebalancing biases, we find severe misspecification of parametric tests, due in part to skewness. We document a negative relation between skewness bias and sample size, and an overlapping-horizons bias. Both biases become more severe as the holding period lengthens. The biase...

What percentage of their portfolio should investors allocate to alternative investment vehicles? The only available answers to the above question are set in a static meanvariance framework, with no explicit accounting for uncertainty on the active manager’s ability to generate abnormal return. In this paper we consider the problem of an investor who can choose between the riskfree security and ...

This paper examines the impact of RFID investment announcements on the market value of the firms and explores industry effects of the positive abnormal returns to firms making the announcements. Drawing upon the efficient market theory, market signaling hypothesis, and prior empirical studies, we employ event study methodology to analyze RFID investment announcements over a six-year period from...

Managers can decide to reduce a warrant’s exercise price. A reduction in exercise price can induce exercise (a conversion-forcing reduction) or not (a long-term reduction). Conversionforcing firms show an abnormal return of -1.53% on the announcement day but they perform well over the three years following the announcement. This finding suggests that the funds raised from warrant exercise are i...

This study investigates whether the information content of insider transactions, with a focus on sell transactions, is different for high growth, high volatility Internet-based firms. Prior research on more “traditional” firms has found a small, but significant negative abnormal return with insider sells, which points to an association of insider sells with negative information about the firm b...