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
RAROC compares risk-adjusted return with economic capital, making it a risk-based measure of profitability. The document asks whether a target RAROC can be used to solve directly for the capital required, but the response does not provide a calculation…
The document distinguishes LCDX and CDX High Yield by the credit exposure represented in each index. CDX High Yield tracks companies classified as higher risk under credit measures, while LCDX references loans. It notes that these loans are generally…
The document examines when a European call under stochastic interest rates can be valued by averaging Black–Scholes prices using the path’s average short rate. It explains that this conditioning argument works when the stock and rate processes are…
A defaulted bond can continue trading after its stated maturity because default changes the nature of the instrument. The document explains that the bond represents a claim connected to accelerated repayment of principal, while its original maturity date and…
The document considers whether a bank would apply a negative interest rate to reduce a customer’s overdraft. Its answer distinguishes the central bank’s deposit facility rate from its marginal lending rate: negative deposit rates may charge banks for holding…
The document asks whether QuantLib can support valuation of Israeli Telbor swaps when it does not provide a dedicated Telbor index class. The response explains that predefined index classes are convenience wrappers and that users can construct a suitable…
The document asks how traders can exploit changes in the difference between futures prices and the underlying cash asset, including how futures roll and carry costs affect the strategy. The response suggests framing this as carry or roll trading, with…
The document explains how SONIA fixing dates relate to accrual dates in sterling overnight indexed swaps. Following a 2018 change to transaction-based benchmark publication, SONIA is published in arrears: the fixing dated for a day is available the next day…
The document explains how to infer a three-month LIBOR forward rate from six-month swap rates and a known later three-month forward rate. It defines forward rates using discount bonds and expresses a swap rate as a discount-weighted average of its underlying…
The document explains cross-currency basis through the mechanics of funded swaps, in which counterparties exchange notionals at the start and return them at maturity. It distinguishes these transactions from a hypothetical unfunded swap, where coupon…
The document explains how a floating-rate loan's value responds to changes in its projection and discounting curves. It distinguishes the curve used to set future floating coupons from the funding or discount curve used to value cash flows. For an…
The document considers deriving the stochastic differential of a fixed-maturity yield in a Heath-Jarrow-Morton interest-rate model. Its central mathematical tool is a stochastic version of differentiation under the integral sign: for an integral of a…
The document considers accrued interest on a reverse floater whose coupon is linked inversely to a reference rate, subject to a floor at zero. It checks a calculation based on the rate fixed for the next coupon period and the fraction of that period elapsed.…
The document sets out a calibration question for the Cox-Ingersoll-Ross short-rate model. It begins with mean-reverting interest-rate dynamics under the physical probability measure and describes a change to risk-neutral dynamics in which the mean-reversion…
The question concerns how to differentiate a bond-price expression in a single-factor Heath–Jarrow–Morton interest-rate model. The expression includes a time-indexed stochastic integral whose upper integration boundary also depends on the Brownian…
The document examines whether forward rates derived from a risky discount curve can be interpreted like forwards from a risk-free curve. It distinguishes using a curve to value instruments from treating its implied forwards as an arbitrage-free forecast of…
The example describes a euro-based investor buying US Treasuries while hedging the dollar exposure with short-term FX swaps. At the outset, the investor purchases the Treasury and enters a one-year swap: dollars are received and euros paid at the near date,…
The note discusses loan-level modeling of mortgage prepayment rates when observations vary across loans and over time. It presents multinomial logistic regression as an established academic approach for modeling prepayment outcomes. Time-related variation…
The document describes a relative performance total return swap as a position combining two partly offsetting swap legs. In a bond example, an investor sells a total return swap on a safer bond and buys one on a riskier bond with a similar maturity. The bond…
The document explains how to measure a floating-rate note’s sensitivity when both its discount curve and coupon curve move together. It models the curves as a shared market level plus separate baselines, so the price sensitivity to that level is the sum of…
The document considers pricing a zero-coupon bond as the expected exponential of the negative accumulated short rate under the Cox-Ingersoll-Ross model. It contrasts the model’s analytic forward curve and bond price with estimates from Euler-Maruyama path…
The document defines DV01 as the change in a fixed-income portfolio’s value for a one-basis-point change in interest rates. Active DV01 describes that sensitivity relative to a benchmark. A negative active DV01 of the stated size means the portfolio is…
The discussion considers whether quantitative finance methods can help value neighborhoods or individual properties using prices, rents, taxes, and interest rates. One response recommends starting with regression and using prices of more liquid, comparable…
The document addresses discrepancies when using on-the-run Treasury yields and coupon-strip yields to build discount curves and price a Treasury bond. The response identifies the coupon-strip curve in the example as likely erroneous because its yields sit…