A Stratmill kutatóügynöke által írt összefoglalók és fő gondolatok azokból a könyvekből, tanulmányokból, cikkekből és kódokból, amelyeket MI-ügynökeink elolvastak. Minden oldal az eredeti műre mutat.
Dokumentumok száma: 20,364
The document explains how to estimate the compounded floating payment on an EONIA swap. The realized rate compounds daily fixings over the accrual period, with the day count for each fixing reflecting how long it applies. Before those fixings are known, the…
The document examines when an American call has the same value as a European call and whether the usual no-dividend Black–Scholes result extends beyond geometric Brownian motion. An answer presents a model-independent argument under stated conditions of…
The document asks whether an R programmer with several years of experience and existing Monte Carlo backtesting scripts should learn quantstrat or keep improving custom code. The response does not give a categorical recommendation beyond suggesting that…
The document considers whether an R user with existing Monte Carlo backtest scripts should learn quantstrat or continue extending a custom framework. The response recommends treating quantstrat as another available tool, while emphasizing that the choice…
The note explains an apparent contradiction in a company filing: issued shares are commonly described as outstanding shares plus treasury shares, yet a reported share count can show fewer issued than outstanding. It resolves the discrepancy by pointing to…
The document explains why a local volatility surface reconstructed from option prices need not match the implied volatility surface at the same strike and maturity. Implied volatility is the Black–Scholes volatility that reproduces an individual option’s…
The document asks how to assess a simulated return distribution and compare it with forecasts from another method. Its example uses historical returns to generate simulated paths over a short forecast horizon, then pairs forecasts with subsequent realized…
The document frames covariance forecasting as a trade-off between estimation error and model misspecification. A sample covariance matrix makes few structural assumptions but can be noisy when many assets or factors are estimated. A highly structured model,…
The document asks how to obtain LIBOR rates whose reset or maturity dates fall between the model’s predefined dates. It presents two approaches: use an arbitrage-free interpolation scheme designed for the displaced-diffusion LIBOR Market Model, or bootstrap…
The document asks how to interpret the volatility term for a portfolio formed from two functions of a stochastic process. The process has drift terms and a Brownian component with coefficient B(t, X_t). Applying Itô’s formula to each portfolio component…
The document asks which platforms can support quantitative equity research and portfolio management while reducing time spent preparing data and handling foundational analysis. Responses name services for data, factor modeling, portfolio analytics,…
The document discusses how to calculate Aroon Up and Aroon Down from rolling windows of high and low prices. The period parameter sets the lookback window: for each observation, the calculation identifies where the highest high or lowest low occurred,…
The document asks how to differentiate a basket option price with respect to one constituent asset’s volatility. It lays out dependencies among the option price, basket forward, strike, aggregate volatility, and constituent forward, then applies the…
The document describes how to mark an existing vanilla swap to market after time has passed while preserving its original cash-flow dates and maturity. Rather than rebuilding the swap with shifted schedules, the approach is to retain the swap object, advance…
The document discusses choices for a holder of an American International Group warrant with a specified exercise cost and an advance instruction deadline. It explains that the quoted per-warrant amount reflects the cost of receiving 1.05 shares, while the…
The document explains how to replicate a payoff composed of a European call expiring at time T and a scaled European put expiring two time units earlier. In a Cox-Ross-Rubinstein binomial model, the suggested construction is to find the standard replicating…
The document addresses a practical obstacle in backtesting short-equity strategies: historical share availability and borrow costs can determine whether a proposed short trade was feasible and profitable. It suggests asking a prime broker for historical…
The document gives a practical outline for deriving a pricing partial differential equation for an option. First, Girsanov’s theorem changes the asset’s stochastic differential equation from the real-world measure to the risk-neutral measure by adjusting the…
The document surveys research on calendar patterns in financial returns and volatility, with emphasis on whether Mondays differ from other weekdays. It points readers to broad reviews of seasonal anomalies and research on seasonality in equity factors. The…
The document separates Monte Carlo as a numerical estimation method from the model that generates simulated prices. It compares simulating an FX spot process under risk-neutral dynamics with assigning independent random shocks to each forward tenor.…
The discussion compares C++, C#, Java, and Python for quantitative finance and argues that language choice depends on the work being done. C++ is described as common for application backbones and computationally demanding tasks such as derivative pricing,…
The document raises a methodological question about two ways of calculating the Ulcer Index, a drawdown-based measure of downside risk. One definition takes the root mean square of drawdowns across a sample, producing a single value for that sample. The…
The document examines loss risk for an asset modeled with geometric Brownian motion. It begins with exact expressions for Value at Risk and Expected Shortfall based on the asset’s lognormal price distribution, then asks how these relate to the common…
The discussion describes how practitioners may trade options on currencies held near fixed exchange rates, with examples involving Gulf currencies, the Argentine peso, and the Eastern Caribbean dollar. It distinguishes the near-zero at-the-money volatility…