# All Questions

3answers
243 views

### Determining optimal trading signals (buy/sell) from past data

Let's say we have a stock which our only actions are buy, sell and hold (with or without shorting). If we have sufficient past data of the stock, how can you determine the optimal trading action ...
2answers
67 views

### IMM Swaps vs. Forward Swaps

Could we think of IMM dated swaps as forward swaps (since they trade only on specified dates and they might not be the current date)? For example, today is June 2nd, the next IMM swap is June 14 (not ...
1answer
89 views

### How do I do a mean variance optimization with constraints?

I am using python and the cvxopt library to calculate an efficient frontier, per the docs: http://cvxopt.org/examples/book/portfolio.html However, I cannot figure out how to add a constraint so that ...
0answers
101 views

### trading strategy outperforms passive strategy in absolute terms, but in returns vice versa. how could this be?

Background: I want to compare two trading strategies in term of profitability. The red one is an active trading strategy, which involves many entry and exit to a specific market. The blue one is a ...
2answers
84 views

### Modelling driftless stock price with geometric Brownian motion

I wish to understand some basic fact about the (primitive) simulation of stock prices with geometric Brownian motion. If $S(t)$ is the stock price at time $t$, and the stock price follows geometric ...
1answer
131 views

### Simulating state space model with AR(1) dynamics

I asked a question similar to this previously: https://dsp.stackexchange.com/questions/16341/simulating-a-state-space-model However I think I have a better handle on it now and want to re-ask it: I ...
1answer
62 views

### Sample size and historical correlation matrices

I was wondering whether any literatures existed on how to properly estimate correlation matrices from historical data. Obviously the entire procedures allows a lot of leeway. The frequency of ...
0answers
37 views

### Properties of a Symmetric Copula

I am working with the following copula, and have a few questions about it: $C(x,y) = xy + \theta (1-x)(1-y)xy$ Here $\theta \in [-1,1]$ and $x,y \in [0,1]$ First, I am trying to show this copula is ...
1answer
52 views

### Regression of TAQ half-hourly stock volume data against news volume

I am planning to run regression of half-hourly stock volume against the half-hourly news volume for that particular stock. I am looking at 2 years of data for my analysis. However, I am stuck thinking ...
3answers
154 views

### Hedge fund database with daily data

I am looking for a hedge fund database that provides returns daily. Is there any data provider that gives daily data?
1answer
86 views

### What is the Rho of an option on a futures contract priced using the Black 76 model?

I wanted to quickly confirm some simple calculations for the Black 76 greeks and was making use of the formulas on this website: http://riskencyclopedia.com/articles/black_1976/ I have an issue with ...
1answer
50 views

### meaning of discount term in FRA value

Consider a forward rate agreement on LIBOR (say), which starts 2 months from now, expires after 3 months and has strike $K$, and is based on $3M$ LIBOR -- $FRA_{2\times 5}$. Now the present value of ...
1answer
48 views

### Best performing stocks in given year

Is there a function in Bloomberg that allows the user to search the best performing stocks for a given year, say 2011, in any given stock exchange? For example, I want to see the best performing ...
0answers
40 views

1answer
131 views

### What is PCA and how does it relate to eigenvectors and eigenvalues?

What are the principal components? How they are calculated? What is their relationship with eigenvalues and eigenvectors? This is a lead-in question to explain PCA basics. EDIT: PCA is implemented ...
0answers
41 views

### How to the compute the formula of Kendall's tau (please see this formula)

I am trying to compute the kendall's tau, but when facing the formula below, I don't know why the second line is this. Could anybody help me to interpret the reason to me? Thanks very much!
1answer
50 views

### Forex Fundamental Data Sources [duplicate]

What are the best sources to find free Forex historical Fundamental Data in a .csv format?
2answers
56 views

### Implied Correlation using market quotes

Is there a way to retrieve the implied correlation between stock price and zero coupon bonds?

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