Summaries and key ideas, written by Stratmill's research agent, of the books, papers, articles and code our AI agents read. Each page links to its original.
20,364 documents
The document explains that weighted average cost of capital represents a company’s average financing cost, so a lower WACC is generally preferable from the company’s perspective. It then considers why investors may view a higher WACC differently depending on…
The document asks how a market maker should use a fair-value estimate when quoting in a central limit order book. It contrasts this setting with request-for-quote trading, where a dealer can present prices without competing against visible resting orders. In…
The document describes how a simulated short rate can be used to obtain bond prices and the term structure of interest rates. Under the risk-neutral measure, a zero-coupon bond price is the conditional expected value of discounting one unit of payment by the…
The document explains why Bloomberg’s FXFA and SWPM screens can show different rates and basis figures for a EUR/USD cross-currency swap. FXFA uses floating EUR and USD yields, while the example SWPM setup uses two fixed rates, so the coupon rates are not…
The document considers a long call calendar spread when the underlying rises above the shared strike by the short option's expiration. It asks whether the spread necessarily loses its entire opening debit, using an example in which the near-dated call is…
The discussion addresses whether negative interbank rates should be floored at zero when valuing FX forwards or futures. The answer argues that market participants can lend and borrow at negative rates, so valuations must reflect those rates: replacing them…
The document asks whether Sharpe-style portfolio style analysis can explain equity fund performance using indices grouped by high, medium, and low ESG characteristics. It identifies suitable data as the central practical challenge and points to ESG scoring…
The discussion explains how to interpret and scale Greeks for a GBP/USD call option. It emphasizes that the currency pair’s quotation and the chosen risk convention affect the sign and currency value of delta. A trader described as hedged by 50 deltas holds…
The document addresses how a technically capable beginner can move from trading infrastructure and market knowledge toward designing strategies. It describes strategy as a broad category, ranging from simple rules based on price gaps to models using…
Ross recovery seeks to infer transition probabilities and risk preferences from state prices by removing a stochastic discount factor. The discussion distinguishes two questions: when a positive pricing measure can be transformed into a probability measure,…
The document explains why a floating-rate bond is commonly valued near par just after a coupon reset or payment. It starts with a loan whose interest rate sets both its coupon and its discount rate: the discounted repayment equals principal, leaving the loan…
The document addresses numerical instability when a finite-difference method prices a call option using its terminal payoff, which has a kink at the strike. Near that point, a coarse grid can make a central approximation to the second derivative very large,…
The document describes how legacy defined-benefit pension funds can influence long-dated interest rates. These plans promise retirement benefits linked to employees’ salaries, creating long-term liabilities for the sponsoring fund. How the liabilities are…
The document explains how to estimate the inputs of a Cobb–Douglas production function from observations of company output, capital, labor, and materials. Taking logarithms turns the multiplicative model into a linear regression: the input quantities are…
The document gives a closed-form expression for the probability that an arithmetic Ornstein–Uhlenbeck process reaches one of two barriers first. It considers a process starting between a lower and upper level, with positive mean-reversion speed, and…
The document explains how to test whether an event day produced abnormal stock returns across a group of companies. It uses a market model fitted over an estimation window, then defines the daily average abnormal return as the cross-sectional mean across the…
The document asks how to compute higher moments of the time integral of an exponential Brownian motion, a quantity relevant to arithmetic Asian options. It first gives the expected value, then presents a general expression for the m-th moment using divided…
The post asks how to build a yield curve from three-month interest-rate futures, using Euribor as an example, and whether cubic-spline interpolation is available in Python. It points to a reference on multi-curve bootstrapping and a worked Python…
The answer clarifies that Advent Geneva is a middle- and back-office platform used for fund accounting and administration, rather than an automated trading engine. It describes core functions such as calculating profit and loss and net asset value,…
The post asks whether a GARCH model implies zero covariance between a squared return and a lagged return. It identifies the conditional variance as a function of past squared returns and variance, then considers how that dependence affects the expectation…
The document explains how to infer a compounding frequency from a quoted nominal annual rate and an effective annual yield. It considers an account advertised at a nominal rate of 9.5% with an annual yield of 9.84%, then applies the quarterly compounding…
The response interprets personal finance decisions broadly, covering choices such as saving, pension planning, purchases, and risk taking, along with rational and irrational behavior. It recommends searching under behavioral economics and related terms about…
The answer proposes a game-theoretic explanation for possible inflation in bond credit ratings. It assumes that agencies compete for rating work, issuers pay for the service, and issuers prefer agencies that offer higher ratings because those ratings can…
The document describes a QuantLib calibration problem for the G2++ interest-rate model in a negative-rate environment. The reported error arises because the cap helper uses shifted lognormal volatility with zero displacement, which requires the strike plus…