# Tag Info

22

Here are some pointers. First of all: What you list as a Reuters RIC, RSF.ANY.AAPL.OQ, is not really a RIC, only the AAPL.OQ is. The initial part is some stuff which is essentially site specific and tells me that you are working on a site that has a legacy RTIC infrastructure (some Reuters/TIBCO technology which is quite old these days and for all ...

11

We use Node for reporting but not as part of our main signal generating trading system. To be honest the answer will almost certainly be yes for every common programming technology as it just takes one person to use it somewhere to make the answer yes. Just look at OCaml, before Jane street, most techno logiest on the street had never heard of it and now ...

8

OpenTSDB is good for large-scale time series storage. metrilyx/opentsdb-pandas and wiktorski/opentsdb_pandas seems to provide the interface with pandas. OpenTSDB and HBase rough performance test | MoreDevs provides a benchmark, may not exactly match your requirements but you can try.

8

Question 1. Actually, the assumption of trade data format is that you have timestamp, size and price (not bid/ask) of trade. Sometimes, trades(ticks) are included to Level 1 data (also called BBO) which assumes bid and ask information. However, bars are constructed on trades, not quotes. Question 2. Yes, T value is derived from equation 3. The process is ...

7

In any finite sample, it is always possible for the Zhou estimator to return a negative number, even though we know the unobservable parameter being estimated is non-negative. This is a well known issue in the academic literature. There are several approaches to dealing with this problem: 1) Ignore it. (I don't like this one). It is particularly nefarious ...

7

Dukascopy offers historical tick data. Through their historical data website you can download what you want, but registration is required, and lots of manual clicking. However if you are comfortable with scripting, you can directly download the tick data yourself. The URL pattern is http://www.dukascopy.com/datafeed/{currency}/{year}/{month}/{day}/{hour}...

7

As someone who has contributed to literature, I am purposefully vague with the use of mid price. Not that I don't define it but that it is difficult to state which definition is the best in which context. Here are an example of a few definitions of mid price: Last Trade: The physical price at which the most recent trade physically took place. This is ...

6

Cloud9Trader uses Node.js on the back end and JavaScript across its technology stack, including for writing the trading algorithms themselves. https://www.cloud9trader.com

5

Obviously merging two streams is harmless and it should be done. But it's hard to advise you regarding the "interpolation" methods you can use to generate the ticks without knowing why you need this. The reason is that any method will introduce a certain bias to the data. Therefore, it very much depends on what are you going to do with your altered data on ...

5

If you're missing ticks, then no technique will get those ticks back. If you have two sources, then designate one source as the primary feed and then fill-in gaps from the secondary feed. Of course, you'll have to mind the timestamps when determining whether the secondary feed can be used properly.

5

Each vendor has their own symbology universe and each exchange, market, or country may have their own standard identifiers. To date the majority of identifiers have also been dynamic, i.e. when a company renames, merges, relocates, the identifier may change. Some symbology systems operate on different levels of granularity whereby prices can be filtered to ...

5

I think the best choice for technical analysis with node is node-talib, a wrapper around TA-Lib. We're using it for some projects and it works ok so far. Here's a list of the indicators you get out of the box: AD Chaikin A/D Line ADOSC Chaikin A/D Oscillator ADX Average Directional Movement Index ADXR ...

5

check this out Arctic. It's a Man AHL developed Mango DB for store their financial time series. Claimed to be really good. But i haven't try myself.

5

Outside of ETFs, corporate bond markets are driven by institutional flows. Over the course of a single day, multiple dealers will send multiple "runs" messages to their institutional clients. These "runs" contain markets on corporate bonds. The information from these is text scraped and stored. You can buy this information from someone like Bloomberg or ...

4

Bloomberg equity codes are usually quite easy to derive if you know the ticker (though you may have to replace dashes/spaces/slashes for preferred and multi-class shares). This is just for equities though and this is definitely not the case for futures. RICs are a different story. In the US, you need to know on what exchange the ticker is listed to get the ...

4

I use Yhang Zhang measure for intraday volatility for timeseries with a rolling 5 or 10 day window. I wrote a C++ and vba implementation which I'm happy to share if you wish. Takes olhc data and gives an 'estimate' of the volatility. For intraday trading (gamma hedging), I found it is a fairly good estimator of the days range. But I would caution on whether ...

4

It turns out that the Bloomberg Terminal QR function, when adjusting the timezone from Exchange/UTC to your timezone, will convert the time but not the day. Trades displayed via IntradayTickRequest API are correct in UTC time, trades displayed via Bloomberg Terminal QR may be incorrect due to failure to adjust the stated date for timezone adjustments.

4

I tried out Alphavantage a while ago. I was looking at it as a source of data for US and Canadian stocks. They use IEX for US stock data. There are a few other international symbols that do work because they seem to pass-through the request to Yahoo (or other free sources) and return that data back to you. I think they may also use that as a fall-back if ...

3

We use node.js at alta5. The event-driven, non-blocking I/O model performs well in data-intensive real-time applications like a trading platform. http://alta5.com/

3

To construct best bid/ask from ITCH you must build a book incrementally from the messages in the data. Every message, except for system oriented messages, and non-displayed Trades, represent an order or an action on an order. Process the data, build a book, and you will naturally be left with the best bid/ask at the top of each side.

3

I have a little experience with this. First, NASDAQ has shared a dataset with researchers that flags whether an HFT participated in each trade or not but not the actual MPID - probably less granular than what you want. You generally need a professor to "cosign" your request, write a brief project proposal, and sign an NDA to get it. They also have shared ...

3

Market participant ID data is extremely unlikely to be available without the collaboration of regulators and the exchange itself, as it is a closely guarded information. Even "anonymized" data with no reference to a specific firm could reveal private information to informed market participants. If obtained at all, it is likely to come with draconian ...

3

I am using NodeJS for a similar project. There's not a ton of packages on NPM for finance and stocks, so I wrote my own, that might help you get started: Fetching historical stock data, including intraday: https://www.npmjs.org/package/node-activetick Charting, analysing, forecasting the data: https://www.npmjs.org/package/timeseries-analysis You can use ...

3

If you just want to run some simplistic technical analysis on quotes, then select the last quote for each unique timestamp. That will ensure that you don't have duplicate timestamps. If you must have it evenly spaced (i.e. no gaps from one second to another), then you can reuse the previous quote to fill-in the missing value.

3

Here's the SPX & DAX data in CSV format (you can open in Excel): http://real-chart.finance.yahoo.com/table.csv?s=%5EGDAXI&d=11&e=1&f=2014&g=d&a=10&b=26&c=1990&ignore=.csv http://real-chart.finance.yahoo.com/table.csv?s=%5EGSPC&d=11&e=1&f=2014&g=d&a=0&b=3&c=1950&ignore=.csv and this ...

3

Simply put, no, you won't find this. The most basic one-port ITCH feed with no redistribution rights runs \$750/mo. Historical ITCH data which is useful for backtesting is \$1,000/mo. with a 12 month initial minimum contract. Fees for distributors are much, much more expensive (all costs can be found on the NASDAQ OMX website), and the restrictions on ...

3

You could try just the basics: Inversion of bid ask spread (if bid_px >= ask_px) Unusual prints far out (if bid_px - eps_ticks <= trade_px <= ask_px + eps_ticks) Time sequencing (if event_time[0] >= event_time[1], 0 for most recent) Max values (if volume == 2^64-1) There's very few papers out there and I believe all of them are outdated anyway. ...

3

But I am confused about what high/low and open/last mean? The high (low) is the highest (lowest) trade price that occurred within the minute. The open price is the price of the first trade that occurred within the minute. The close price, also known as the last price, is the price of the last trade that occurred within the minute. The concept of open-high-...

3

I would highly suggest Quandl as a great place to start: https://www.quandl.com/tools/excel Has a lot capabilities for stock look ups and works really well once you've gained some familiarities with it. Can really build out a powerful sheet if you don't need tick data or anything like that.

3

If you don't have strict low latency requirements and don't care if the provider is conflating tick data, then I would recommend using a broker's market data feed. Many electronic brokers offer access to connect to streaming market data alongside their other services. This will be the cheapest option in terms of cost, and will also likely be the easiest to ...

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