Questions tagged [fx]

The foreign exchange market (forex, FX, or currency market) is a global, worldwide-decentralized financial market for trading currencies. Commonly traded instruments include spot, forward, swaps, futures, and options. The FX market is the most liquid financial market in the world. There is no unified or centrally cleared market.

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FX Options price vs implied vol

From the screenshot below, what is the difference between the option price by strike in the table versus the implied volatilities by delta in the chart at the bottom? https://www.investing.com/...
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FX Option pricing on Forward vs. Spot

In a GBM world with riskless domestic and foreign interest rates, what would be the correct model for a FX plain vanilla option given the statement that this option is priced on the forward? I guess ...
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Garman-Kohlhagen (Black-Scholes) Formula vs. Bloomberg OVML Calculator

I'm trying to price a European call option on USDJPY. We have that $S = 112.79, K = 112.24, \sigma = 6.887\%, r_d = 1.422\%, r_f = -0.519\%, T = 0.25$. My model, based on Black-Scholes, returns the ...
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FX Delta Conventions

I'm currently reading Iain Clark's book Foreign Exchange Option Pricing and I got stuck at one sentence in the beginning of Section 3.3 that I feel is important to understand. He writes: FX ...
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Spot/Next and Tom/Next FX forward swaps

could somebody please tell me what is the main difference between Spot/Next and Tom/Next FX forward swaps? I know that both are used to roll spot FX position settlement to 1 day forward but I really ...
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Cross Currency Swap Pricing in nowadays environment

Multicurve setting has now become the new paradigm for vanilla swap valuation. For the record I give here (without getting into too much details) the methodoloy for pricing Euribor3M swaps in this ...
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How to generate synthetic FX data for backtesting?

I want to generate synthetic forex data for the purpose of backtesting my trading algorithms. I have some rough ideas in mind on how to do this: Start with a curve representing a trend, then randomly ...
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FX forward with stochastic interest rates pricing

I would like to extend the following question about FX Forward rates in stochastic interest rate setup: "Expectation" of a FX Forward We consider a FX process $X_t = X_0 \exp( \int_0^t(r^...
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Pricing an fx option in the same currency

Let imagine we have an option from EUR to USD priced in EUR, therefore the payoff for a call is: $$\frac{(S - K)^{+}}{S} = K (1/K - 1/S)^{+}$$ This is basically the payoff of a price of a put on 1/S ...
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Inflation effect on FX rates

With UK's inflation surging to 3.2% as per the published figures today reported by the FT, it is interesting to ponder the effect of rising inflation on FX rates. The article linked above points out ...
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FX Forward pricing with correlation between FX and Zero-Cupon

I would like to extend my question about about FX Forward rates in stochastic interest rate setup: FX forward with stochastic interest rates pricing We consider a FX process $X_t = X_0 \exp( \int_0^t(...
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FX option trading questions

Are all FX trades ( RR, BF, ATM)quoted in implied vol term delta neutral trades? If trades are not delta neutral at the initiation does that mean it is speculative trading? Why/ why not?
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FX Option Pricing Under Basis Adjustment

Given money market rates such as USD LIBOR and EURIBOR and in the context of FX options valuation, I have been reading about the importance to include a so called basis adjustment to one of the ...
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Premium Currency and Volatility

Does the volatility of a Currency Pair depend on the currency in which the premium is paid? For example- will the Volatility of USDJPY change if the premium is paid in USD instead of JPY. Is there any ...
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FX Rate dynamics

Let's suppose USD/EUR price in USD follows a GBM with $$ dS_t = rS_tdt + \sigma S_tdW_t $$ What process does EUR/USD follow in EUR?
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Currency exchange rate

I'm working with monthly data and I need to use FX rate in my model. I have daily data for exchange rate and not sure how to average it over the month. Should I compute simple arithmetic average over ...
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Strange Delta for FX Down And Out Call, Strike below Barrier

Based on this text about FX options on pages 139, 141 and 145 I'm trying to compute the delta of a down and out call with the strike below the barrier. Here is a quick and dirty Python code (I assume ...
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How is historical data for forex collected or computed?

I'm looking at four sources of forex data, as compiled in the question, What data sources are available online? And I think I must be misunderstanding something, perhaps something fundamental, but I'm ...
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where can i get data for foreign exchange order flow

I need data for my thesis research on liquidity of foriegn exchange for order flow (aggregated daily) per currency traded for a period over the last 10-15 years. help!!
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Cross Currency Swap pricing

I have seen two methods for calculating the value of a xccy swap - 1) Convert the future foreign payments to the base currency using forward FX rates, net with the base currency payments and ...
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10 votes
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Why FX Vanilla Options are quoted in volatility

I've been curious why vanilla options are quoted (and traded) in terms of volatility. Considering that every financial institution has its own options pricing model, volatility as an input would cause ...
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6 votes
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Why do we usually use normal distribution and not Laplace distribution to generate stochastic process?

When working with a stochastic process based on brownian motion, the increments have normal (gaussian) distribution. However, it seems that a Laplace distribution, with density: $$f(t) = \frac{\...
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LSV model calibration with only few quotes per maturity

At this link I have asked what is the market standard when pricing options in different asset classes. Based on the answers, the standard for FX and equities seems to be the local-stochastic ...
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What is Toxic FX Flow debate?

So, basically I want to debate and find out the real reason behind being flag by ECNs and venues as "toxic". How to avoid being flagged? What kind of strategies are toxic and why? Below is an article ...
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16 votes
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Why using 3 months forward to hedge fx risk on a fund of funds portfolio?

In my previous job, a fund of funds, they used 3 months forward FX contracts (renewed every 3 months) to protect their portfolio against currency risk. If I do understand why forwards are useful for ...
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9 votes
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Implied interest rate from FX swap

This is not homework. I am trying to calculate the implied interest rate of one currency (C2) using an FX swap and the interest rate of another currency (C1 - base). I have the following: Spot: 7....
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VaR mapping - Forward Foreign Currency Contract

I have a question about VaR mapping for FX forwards. Please bear with me while I outline the problem. Philippe Jorion's book discusses VaR mapping; a means to break down complex instruments into ...
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3 answers
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Are there Python algorithmic trading libraries supporting forex?

I know about zipline and ultrafinance, but as far as I know, they don't support fx trading. Which libraries do?
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Calculating Cross Currency basis swaps

I am trying to calculate cross currency basis swaps for personal use. I generally understand what they are (essentially swapping one currency for another currency on a floating interest rate basis) ...
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2 votes
1 answer
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FX Asian Option Moment-matching in Harmonic case

I need to price a "foreign-paying" fixed-strike Asian (i.e., average) option. Thus, the payoff is: $$\left(\frac{A_T - K}{A_T}\right)^{+} = \left(1 - \frac{K}{A_T}\right)^{+} = K \left(\frac{...
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6 votes
3 answers
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Computing FX forward delivery dates

I'm looking for a precise definition of how FX outright delivery dates are computed. Chapter 1 of the book 'Foreign Exchange Option Pricing: A Practitioners Guide' (this chapter can be found here) ...
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How trading in currency pair works, underlying techniques and mechanisms

I am somewhat experienced in Forex trading, but I have a question which has bothered me for quite some time. If we for instance go back in time four months, to before the beginning of value loss the ...
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Black model: Delta - strike relationship regardless of expiry?

While wandering through some QuantLib experimental classes for FX trading, I've found this Black Delta Calculator. By reading its .cpp, it seems that no use of ...
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How should I convert FX Volatility Surface from one base currency to another?

This might be a very simple question but I wanted to understand how to convert FX volatility surface points which are quoted in one base currency to another currency? Eg I have fx vol quoted in EUR ...
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1 vote
1 answer
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pnl calculation of FX forward

i am trying to clarify the correct method of computing pnl (in base ccy) on an FX forward. let's assume the following notation: S(t) = spot rate at time t df(base,t) = base ccy discount factor (USD ...
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how do you evaluate an FX market EMS?

My firm is investigating FX EMS systems to see if we can reduce execution costs for our trading strategies that involve FX (not low latency). The liquidity providers are a few major banks. We're ...
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7 votes
3 answers
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Valuation of open FX-Forward

So called closed FX-Forwards are well known forward contracts where some amount of foreign currency is bought at a specified date in the future for a price fixed "today". Such contracts can be ...
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5 votes
2 answers
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FX forward curve building

Can someone explain which curves are used to calculate FX forward rates? I have the idea that it involves using the local OIS curves for both currencies, but my calculation shows that it is not the ...
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5 votes
2 answers
665 views

Dynamics of FX rate

I've see a couple of places where a FX rate, denoted $X$, such as EURUSD (quoted as "the number of USD needed to buy 1 EUR") is modeled with a diffusion process / Geometric Brownian Motion ...
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Carry Trade vs synthetic Carry Trade using forward contracts

When it comes to foreign exchange carry trade strategy, the definition is straightforward: an investor borrows 1 US-\$ in the US (low interest country) and invests that \$1 to AU (high interest ...
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3 votes
1 answer
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Quantlib: Greeks of FX option in Python

I'm using Quantlib in Python to price an FX option. I'm comparing the result to Bloomberg, to make sure the code is working correct. I also want to calculate all the Greeks, and eventually use those ...
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2 votes
1 answer
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AUD funding rates

I am looking into into AUD rates and I am a little confused. I tried to summarise below my doubts. FX swap basis (difference between AUD FX swap implied rate and AUD OIS rate). Before covid-19 it has ...
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2 votes
2 answers
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Forex trading scenarios - calculating units

I'm trying to build an automated forex trading system and I'm trying to understand how to calculate the number of units I should specify for each trade in different scenarios. Say for example I have ...
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1 vote
1 answer
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Who influences Forex prices and by how much?

May question is probably stupid, however I cannot find some reasonable explanation who (and to what extent) is influencing the prices at the Forex market. Most of the stuff I found on the Internet ...
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VaR for FX forwards

I am trying to figure out some of the commonly used approaches to deal with FX forwards (in a currency portfolio containing spots, forwards and swaps) that would allow me to calculate the one day VaR ...
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0 votes
3 answers
256 views

How is forex price precision (of the actual floating point number) determined?

I wrote some python code that tries to calculate this by samplying 1000 forex prices using polygon.io's REST api. However, will the precision ever change or is it fixed by something. How do they ...
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0 votes
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Understanding FX forward points and market usage [closed]

I've been trying to make sense of how the FX forward market works. Let's say today is June 13, 2022. And we have the next market info as seen in Bloomberg for the FX cross between USDMXN, assuming mid ...
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4 votes
3 answers
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The relation between exchange rate SDE and respective interest rates

The exchange rate between a domestic currency money market and a foreign currency money market can be expressed as $$ dQ(t) = (r_d - r_f)Q(t)dt + \sigma Q(t)d\tilde{W}(t) $$ where $r_d$ is the ...
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FX Option Price Quotation

I'm trying to replicate the following FX vanilla option pricing exercise (and the conversion between the quote types), taken from Wystup (2006). A call's value today is well-known given by BS / ...
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Is that a good way to work with the ARMA model?

I would like to share with you what I am doing to get your point of view, and to make a better trading system in collaboration. I am working on EURUSD forex, and I am trying to find a way to place ...
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