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.
5,701 documents
The document discusses how to handle missing observations in short-term interbank rate data, motivated by a goal of predicting customer behavior. Its suggested first step is to seek a more complete, higher-quality source and use it to repair gaps where…
The document describes ways traders may act on information before it is fully reflected in prices. A trader expecting an asset’s fair value to rise can buy while the market price remains below that estimate, then unwind as the market incorporates the…
The document explains how to solve the time-dependent Hull–White short-rate stochastic differential equation using an integrating factor. Applying Itô’s lemma to the short rate multiplied by the exponential of the integrated mean-reversion coefficient…
The document outlines a theoretical way one country could fund another country’s borrowing at a lower apparent rate. An intermediary country could borrow in its own currency at a low rate, lend to the borrower at a somewhat higher rate, and use a…
The document questions whether vendor risk models with hundreds or thousands of correlated factors can estimate covariance reliably when they have only hundreds to about a thousand observations. Exponential weighting can reduce the effective sample further,…
The discussion distinguishes the mechanical calculation of yield to maturity from the risks reflected in a risky bond’s market price. Yield to maturity is derived from price and promised cash flows; it does not explicitly insert a default probability into…
This document asks why yield curve construction may interpolate the logarithm of discount factors and what robustness means in that context. It relays a documentation claim that linear interpolation of log discount factors keeps instantaneous forward rates…
The document asks how modified duration translates a yield change into a bond price change when the quoted price is expressed as a percentage of face value. Its example uses a bond quoted at 103 with modified duration of 4.62 years and a one percentage point…
The document answers a narrow question about whether CUSIP identifiers distinguish between uppercase and lowercase letters. It states that CUSIPs are not case sensitive and that letters in the identifier are written in uppercase. This is a practical point…
The document addresses how to discount a corporate loan issued by a US entity when the borrowing is denominated in euros. Its central guidance is to select a curve consistent with the debt’s currency and associated interest-rate risk. For a euro-denominated…
The document describes fitting a one-factor Vasicek short-rate model to at-the-money cap volatilities across several maturities. It reports the input volatility term structure and the fitted mean-reversion speed, long-run rate, volatility, and starting rate,…
The document explains how a firm can hedge counterparty credit risk embedded in a derivative portfolio and how CVA relates to the hedge. In a simplified example with zero recovery, a nonnegative derivative value is paired with a credit default swap on the…
The document addresses a QuantLib change affecting construction of cross-currency basis swap curves for collateral posted in a currency different from the asset currency. It identifies ConstNotionalCrossCurrencyBasisSwapRateHelper as the apparent replacement…
The document discusses the rate sensitivity of a receive-fixed interest rate swap, using a two-year swap as context. One response characterizes the position as long delta: receiving fixed benefits when rates fall. It also argues that the position has…
The document derives the sensitivity of a forward rate agreement’s payoff to its reference rate. Starting from a payoff expressed in terms of notional, accrual period, contractual rate, and observed forward rate, it differentiates with respect to the forward…
The document explains why a riskless money-market account is often written differently in discrete-time and continuous-time models. With a nominal annual rate compounded over n periods, one unit invested for t years grows according to the discrete…
The document explains the labels in a German government bond description. DBR refers to the Federal Republic of Germany, while “4” identifies a 4% coupon. The January 4, 2037 date is the bond’s maturity, as the questioner already understood. The answer…
The document explains how to combine multiple percentage discounts applied one after another. Each discount reduces the price remaining after the previous discount, so the rates are not added directly. The example uses discounts of 50%, 20%, and 20%; the…
The document considers how to distinguish a bond’s underlying value from liquidity and funding components, especially when corporate bond and credit default swap spreads diverge. It frames the problem as relevant to stress risk modeling and asks how…
The document asks how to value a fixed-for-floating swap between coupon dates when available market rates are quoted at standard tenors. The responses distinguish simple interpolation from curve construction. One recommends bootstrapping a forecast curve…
The post compares the risk exposures of floating-floating and fixed-fixed cross-currency swaps with an FX swap. It distinguishes exposure to spot foreign exchange, each currency’s interest-rate curves, and the cross-currency basis. The answer illustrates the…
The document asks what physical settlement means for single-currency fixed-floating interest rate swaps, using Brazilian real swaps as an example. The answers distinguish delivery of currency from cash settlement, where payment amounts are converted or…
The document asks whether an FX forward and a float-to-float cross-currency swap can be treated as equivalent for hedge-effectiveness checks immediately after repricing. It contrasts a forward’s value, based on the difference between current and contracted…
The document explains bond carry as the return expected when time passes and market conditions otherwise stay unchanged. For a bond, pure carry can be estimated from coupon income less repo financing costs, expressed relative to DV01, or approximated through…