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Dokumentumok száma: 20,364
The discussion explains why a governance portfolio’s estimated market beta can be below one without implying that its total volatility is proportionately lower than the market’s. Beta measures the portfolio’s covariance with the market relative to market…
The document collects book recommendations for an algorithmic trading programmer who wants to connect basic options theory with the language and practice of volatility trading. Recommendations include introductory treatments that emphasize intuitive option…
The document frames a modeling question about predicting the difference between a bond auction’s yield and its when-issued yield. The data are described as sparse: auctions occur monthly, and the author reports 850 results across maturities over a…
The document offers interview questions for candidates evaluating a quantitative trading group, especially when moving from academia into industry. Suggested topics include the markets traded, how research ideas become production models, constraints on…
The document explains why vanilla calls and puts can show the same asymmetric volga profile, with larger values for in-the-money calls and out-of-the-money puts. It uses the Black–Scholes expression for volga, which combines vega with a term based on d1 and…
The note distinguishes risk-neutral pricing from estimation of the market price of risk for short interest rates. Bond and bond-option prices are used to calibrate risk-neutral dynamics, but those parameters alone do not identify the physical-measure risk…
The note explains how to translate a Eurodollar futures price move into profit or loss. It gives the contract’s dollar value per price point and basis point, then applies the general calculation: value per point multiplied by the price change and number of…
The note discusses how to identify market periods that favor trend-following or mean-reversion strategies. One suggested approach is regime modeling with Hidden Markov Models, with two research papers offered as starting points. The answer also cautions that…
The note explains what can happen when a structured finance deal reaches a call trigger. The SPV manager sells or liquidates the pool assets at a price agreed with a third party or the originator, then uses the sale proceeds to redeem outstanding bonds and…
The document addresses which option maturities to use when replicating a variance swap whose observation period runs from the next day through a later end date. It says the option strip used for static replication should expire on the same date as the…
The document compares price alignment in loosely connected cryptocurrency exchanges with currency markets. In crypto, a trader may buy where an asset is cheaper, transfer it, and sell at a higher-priced venue; delays and limited coin availability can widen…
The document contrasts equilibrium short rate models, such as Vasicek, with no-arbitrage models, such as Hull–White. Vasicek uses a mean-reverting process with fixed parameters, so the model generates the discount curve from those parameters. Hull–White…
The document asks whether the conditional expectation of a payoff process’s maximum over stopping times equals the Snell envelope, which takes the supremum of conditional expected payoffs. It highlights a key distinction: admissible stopping times depend…
The document examines an Actual/Actual AFB year fraction when the date range spans several complete years and leaves a stub around a leap day. It outlines the convention’s approach: count complete years backward from the period end, apply the February 28…
The document describes a way to flag stocks whose cumulative price movement crosses a chosen threshold within a rolling time window, then display those signals alongside price series. The proposed process calculates cumulative returns, tests absolute changes…
The document discusses how to handle the gap between regular trading sessions when analyzing intraday stock bars. The appropriate treatment depends on the strategy: a trader who liquidates before the close should exclude returns they cannot trade, while an…
The discussion asks how to calculate the distributional statistics of the difference or sum of asset prices modeled as geometric Brownian motions, including the effects of drift, volatility, and correlation. It notes that the difference of two GBMs is not…
The discussion explains why adding the vegas of all options in a portfolio can misstate total volatility exposure. A simple sum assumes implied volatility moves in parallel across strikes and maturities, an assumption that may not hold when the volatility…
This discussion asks how to forecast a currency spot rate over a three-month horizon and whether the matching forward rate is the best estimate. It presents the random walk without drift as a difficult benchmark to beat and notes that forward rates can be…
The document examines a proposed arbitrage based on one-year and three-year spot rates and a one-year forward rate for the following two years. It first derives the intermediate spot rate from the relationship between the longer spot investment and the…
The document asks how to obtain ten years of FTSE 100 dividend data to calculate a dividend-price ratio as a time series, including a question about using Thomson Reuters Eikon. The answer distinguishes between needing an index-level dividend yield and…
The document asks how to find the stochastic differential of an integral whose integrand is a conditional expectation of a future Ito process. The proposed answer assumes the filtration is generated by the driving Brownian motion and that the drift and…
The answer addresses why a Bloomberg USD interest-rate swap curve may include a contract classified as a financial commodity future. It explains that the curve setup described is longstanding and points readers to Bloomberg’s curve configuration and…
The document introduces raw SVI, natural SVI, and SVI Jump-Wings parameterizations for a single implied-volatility slice, using log-moneyness and total implied variance. It then asks how these choices relate to direct volatility fitting, what maturity…