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 addresses whether standard interest rate option models remain useful as markets move away from LIBOR toward SOFR. Its answer is that SABR and LIBOR Market Model approaches are expected to continue in modified forms, rather than being abandoned…
The document shows how to infer a market-implied probability of a 25-basis-point rate hike from one- and two-month rates, assuming only two possible outcomes: no change or a hike. It compounds the current rate under the unchanged scenario, then compares that…
This question presents a reproducible QuantLib setup for pricing a fixed-rate bond and asks why its calculated clean price differs substantially from a Bloomberg price. It specifies the evaluation date, US Government Bond calendar, settlement lag, semiannual…
The document explains that a negative foreign bond investment figure can represent a net cash flow rather than an investment balance falling below zero. It considers a Japanese foreign bond flow series and suggests that Japanese investors may have been…
The document explains the yield-curve riding strategy: an investor with a fixed holding period buys a bond maturing later, then sells it before maturity. When the curve is upward sloping and remains unchanged, the bond’s yield can fall as its remaining…
The document presents a question about whether changing when QuantLib’s evaluation date is set affects a bond z-spread calculation. The example constructs a yield curve and a fixed-rate bond, then calculates a present value and a z-spread in two test…
This exchange discusses how a repo trader financing a longer-term securities position might manage exposure when term repo funding is difficult to secure. The answer says that repos beyond a few months can tie up a bank’s balance sheet, making them…
This exchange explains how to form the initial replicating portfolio for a European call in the Black–Scholes model. The call’s stock delta gives the number of shares to hold, while the bond position supplies the remaining value needed to match the option…
The document asks whether the weighted average cost of capital (WACC) should apply the tax adjustment twice when the cost of debt is described as an interest rate multiplied by one minus the tax rate. It highlights a notation problem: the standard WACC…
The answer distinguishes Eurodollar futures from the short-term deposit market. A futures contract references a notional amount and interest rate exposure, but entering the contract does not transfer the principal from one bank to another. Instead, buyers…
The answer outlines a valuation path for a European swaption when a short-rate model supplies zero-coupon bond prices. It first describes obtaining bond prices from risk-neutral expected discounting, analytically where the model allows and otherwise through…
The document explains how a bond becoming special in repo can affect its cash price and its forward price. The response first fits a discount curve to several bonds, then represents the temporary repo specialness with a separate curve and combines the curves…
The question asks for an open-source, all-Java implementation of Black–Scholes and related quantitative models, with a preference for code the team can inspect without relying on C++. The replies name finmath-lib as a Java library and describe its broader…
The document addresses how collateral requirements are determined for a cleared inflation swap, focusing on a zero-coupon inflation swap. Its answer says the question is analogous to collateral for an interest rate swap: the margin depends on the contract’s…
The example examines a two-year payment-in-kind bond that may pay its first coupon either in cash or as additional bonds. It compares the bond’s promised payments with zero-coupon borrowing and reinvestment strategies under several possible one-year interest…
The note explains how to express annualized bond yield volatility in basis points. Normal volatility is already an absolute yield change, while Black volatility is relative and can be approximated in yield terms by multiplying it by the forward yield. With…
The document derives a forward interest rate from two annual zero rates. It equates the growth from investing over the full longer maturity with the compounded growth from investing to the shorter maturity and then reinvesting at the forward rate for the…
The document addresses how daily mark-to-market settlement fits into the implied repo rate calculation for a cash-and-carry trade in Treasury futures. The key point in the accepted answer is that the hedge assumes a position of shorting a number of futures…
The document raises a conceptual comparison between bonds and interest rate swaps. It suggests viewing LIBOR on a swap as analogous to a bond’s repo funding rate, and a swap’s fixed payments as comparable to bond coupons. It then asks whether there is a…
The document asks how the Federal Reserve quantifies inflation expectations for monetary policy and questions whether breakeven inflation alone is informative, since it is derived from nominal Treasury yields and inflation-protected Treasury yields. A reply…
The document asks how to calculate forward LIBOR rates from quoted three-, six-, and twelve-month rates, assuming 30/360 day count and equal quarterly periods. It seeks a learning resource and formulas rather than worked answers. The replies point readers…
The document investigates why a standard coupon-bond present-value calculation does not reproduce quoted prices in U.S. Treasury auction examples. It sets out a semiannual coupon formula, accrued-interest calculation, and the relationship between invoice and…
The document explains why marginal credit valuation adjustment (CVA) can help allocate a netting set’s total CVA across existing trades but can misstate the charge for a new transaction. Because each trade’s marginal CVA depends on the other trades in the…
The document explains why the Cox–Ingersoll–Ross (CIR) short-rate process is associated with nonnegative values and why a numerical simulation may still produce negative rates. The Feller condition relates the mean-reversion speed, long-run mean, and…