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Dokumentumok száma: 20,364
The document explains what happens when a trader sells a futures contract after previously buying one. It clarifies that a closing sale offsets the trader’s existing long position, leaving the trader with no open position in that contract. The exchange…
The document examines a present value formula for an Australian Commonwealth Treasury bond with semiannual coupons. It asks how to interpret the fractional discount factor applied before the first coupon and the coupon term that appears separately from the…
The discussion concerns differences between futures option quotes shown in a broker's trading platform and those delivered through its Excel interface. A user reports that the displayed ES quote can diverge from the API feed and then align again after…
The question challenges the interpretation of annualized volatility as a normal range for a stock price, especially when volatility reaches or exceeds 100%. Applying a symmetric normal distribution directly to the price can imply negative outcomes, which…
The document considers how to target a desired portfolio volatility when optimizing a dollar-neutral long-short portfolio with leverage and per-asset weight limits. Scaling optimized weights afterward by the ratio of target volatility to recent realized…
The document explains why some options markets, especially over-the-counter foreign exchange, quote implied volatility by delta rather than by strike. In these markets, available strikes are not fixed and prices may not be directly quoted. Delta provides a…
The document outlines several ways to assess whether a candidate signal adds useful return information. Suggested checks include risk-adjusted performance and tail risk, regression against established factor models to examine the intercept, trading costs and…
The document asks which market benchmark Yahoo Finance uses when calculating beta for stocks listed in foreign markets, and whether the benchmark is local or the US S&P 500. The response offers a methodological recommendation rather than a confirmed…
The document considers vendors for global equity trade bars at intraday frequencies, with the goal of researching short-horizon market patterns and using live data to trade resulting strategies. It identifies historical coverage, a real-time feed, and access…
The document presents a question about annualizing volatility from a fitted GARCH(1,1) model for stock returns. The example uses daily percentage returns, fits a normal-error GARCH model with rescaling enabled, forecasts variance several days ahead, reverses…
The document discusses where to obtain daily European value factor returns and why a single universal definition of a factor does not exist. Commercial risk models can provide factor breakdowns, but their factor definitions differ. A researcher seeking a…
For a regression relating stock trading volume to news volume, the document recommends using observations from market-open periods and excluding closed-market intervals. Adding closed hours as zero-volume observations can create a misleading relationship:…
The document explains why the product of infinitesimal increments of two independent Poisson processes is zero in Itô calculus. It applies the polarization identity to express the cross product in terms of squared increments of each process and of their sum.…
Commodity producers can use cash-settled futures to hedge benchmark price exposure without delivering their goods through the exchange. They continue to sell through their usual supply chain, where buyers handle the commodity’s grade, location, and physical…
A step-up coupon bond can be valued by discounting each scheduled coupon and principal cash flow using a trial yield, then comparing the total present value with the bond’s price. The changing coupon amounts are entered for their respective periods, with…
The document explores whether sovereign default probabilities, potentially inferred from credit default swap prices, can help estimate a country's probability of hyperinflation. Its central response is that markets in countries with substantial…
The document outlines a practitioner’s framework for pricing FX forwards and swaps using spot, interest-rate curves for both currencies, and a cross-currency basis curve. The proposed construction uses overnight-indexed swap curves from market instruments…
The document asks how to picture an integral of a function against Brownian motion. It explains that an ordinary integral can be drawn as areas in two dimensions, while an integral against a varying integrator is more revealing in three dimensions, with a…
The answer treats a future implied volatility surface as a conditional modeling problem. In the direct approach, simulate outer paths under a calibrated model; at a future state, launch an inner Monte Carlo from that state, price options across strikes and…
The document outlines the Daniel, Grinblatt, Titman, and Wermers approach to evaluating stock strategies or funds against characteristic-matched benchmarks. It describes forming 125 portfolios sorted by size, book-to-market, and momentum, then assigning…
The document points readers seeking current research on foreign-exchange market microstructure toward high-frequency trading studies. It argues that faster trading has changed how participants trade, how markets are organized, and how liquidity and price…
The discussion explains why the payoff of a payer swaption cannot generally be inferred from the terminal swap rate alone. If the swaption finishes in the money, its value is the present value of the fixed leg annuity, whose payments must each be discounted…
The document seeks an accessible but mathematically rigorous introduction to investment concepts for teaching. It lists return measures, including logarithmic and geometric returns; arithmetic and geometric expected returns; volatility and annualization; the…
The document distinguishes a forward rate over a future period from the fixed rate on a swap that begins in the future and spans the same tenor. The forward rate is derived from discount factors at the period’s endpoints, while a forward starting swap rate…