# All Questions

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### Matlab Neural Network data organization

I'm trying to train a NARX network using time series data. I've got 80 sets of data I'd like to train the network with. For clarification, one set of data comprises of 6 financial indicators of X ...
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### Determining discount factors for non-standard maturities

Let's say we'd like to find a par rate for a 1 month forward starting 20-year interest rate swap. In this case, we'd need to discount cash flows for the payment periods shifted +1 month from standard ...
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I am looking for an API to request intraday data for the London stock exchange. I have seen products like eSignal but this seems to include a lot more than the simple data as XML or JSON and is fairly ...
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### What data sources are available online?

What sources of financial and economic data are available online? Which ones are free or cheap? What has your experience been like with these data sources?
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### VAR FPCA analysis paper replication

I've been trying to replicate the following publication: toronto.edu/sjaimung/papers/VAR-FPCA.pdf but I havent been able to get the same results estimating the $\beta_{k}$ parameters. First, I got ...
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### Calculate the 0.50 Beta of an Index

I am trying to come up with a benchmark 0.50 Beta S&P 500 Index. I have 1 year time series data of 500 constituents of the S&P 500 Index. Using the standard stock beta calculation method, ...
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### Where can I get two to four years worth of historic data news for companies included in DJ and S&P?

Where can I get two to four years worth of historic data news for companies included in DJ and S&P? I mean not just prices historic data but also news. Preferably for free and in CSV or any ...
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### Options order “logs” - how is it named? And is it somewhere online?

I try to find somewhere "logs" of options orders. I mean - when which order was posted for which option and what size. AFAIK, it is named "ticker tape" for stocks; or level-2.. But is there such ...
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### How can you find change in working capital and capital expenditures without a balance sheet?

I'm working with the following information trying to work through a valuation exercise and I'm absolutely stuck. How can I find ∆WC and CAPX with this information?
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### EM for conditional Gaussian model

Let $$X_1\sim N(\mu_{X_1},\sigma_{X_2}^2)$$ $$X_2\sim N(\mu_{X_2}, \sigma_{X_2}^2)$$ where $\mu_{X_2}=c+aX_1$. Also, I have data $D$ (with missing values on $X_1,X_2$). How can I update/estimate the ...
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### ARIMA prediction for currencies

I was browsing TradingEconomics.com and I came across their forecast models which immediately captivated my interest. They describe them as "projected using an autoregressive integrated moving average ...
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### Send TRAIL STOP order when price hits a certain level, with IB TWS

Posting here after searching around and not finding any responses to basically the same question that I saw on EliteTrader, with another variant posted 10 years ago (update: the same question on Money)...
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### Nasdaq 100 Index Liberty Media Tracking Stocks

Having trouble getting the exact changes to Nasdaq 100 Index for Liberty Media split. What were the Liberty Media related stocks in Nasdaq 100 before April 18th 2016 and then after April 18th 2016 ? ...
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### Can I use PyAlgoTrade for Forex?

Is it possible to use PyAlgoTrade for Forex related algorithms? If it is, please point me in the right direction on how to get PyAlgoTrade to work on Forex data.
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### Can someone check this boundary condition for me?

At the moment I'm comparing plots between the implicit numerical Black-Scholes PDE and the Monte-Carlo Method for the Black-Scholes equation. However, for the particular boundary condition I'm using I'...
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### Forex Market Timezones

I need to store OHLC data from the Forex Market. I live in the UK which is presently in British Summer Time +1. The Forex Market EST, which is normally -5 from GMT. I'm not sure how Eastern ...