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Questions tagged [market-data]

Market-data includes all questions relative to data acquisition for the different financial products. It can also include questions about how market data are computed.

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109 votes
7 answers
201k views

Where to download list of all common stocks traded on NYSE, NASDAQ and AMEX?

I have a very basic data question: how to get a list of all common stocks traded on NYSE, NASDAQ and AMEX? I would need to be able to get the approximate list of common stocks as is available in ...
Samo's user avatar
  • 1,091
59 votes
14 answers
170k views

Where to get long time historical intraday data?

I am looking for long time historical intraday day data on the S&P500 composite for a time horizon like 10 years with a - for example 10-minutes tick - or prices for call/put options on the S&...
user190080's user avatar
38 votes
11 answers
136k views

Mapping symbols between tickers, Reuters RICs and Bloomberg tickers

Is there any known solution (preferably open source) to map between ticker symbols, Reuters and Bloomberg symbols. For example: Ticker: AAPL Reuters: AAPL.O (may be prefixed with RSF.ANY. dependent ...
Datageek's user avatar
  • 521
31 votes
9 answers
40k views

What is the best data structure/implementation for representing a time series?

I was wondering what is best practice for representing elements in a time series, especially with large amounts of data. The focus/context is in a back testing engine and comparing multiple series. ...
dizzy's user avatar
  • 571
25 votes
1 answer
45k views

Difference between the two Bloomberg codes

Bloomberg always have two codes for the same instruments. For example, for Apple, Bloomberg has AAPL US and AAPL UW. I am wondering what is the difference between these two codes? As far as I can ...
Xinchao's user avatar
  • 365
23 votes
20 answers
26k views

Is "eoddata" a good data source?

Not sure if this is a relevant question for site, but I am looking to move to www.eoddata.com as my data source. If anyone has used it, can you tell me how the data quality is ? I am currently ...
silencer's user avatar
  • 1,553
20 votes
6 answers
23k views

Historical Level 2 Data (Market Depth)

I'm currently looking to hone a system using market depth however I am looking for a good source of historical level 2 data. As of right now the best source of historical I have found is automated ...
Dylan's user avatar
  • 301
19 votes
2 answers
4k views

Do you have historical tick data you want to donate?

Do you have historical market/pricing ticket data that you would like to donate to the Open Source Trader project (OST)?? Please: upload your files! Once we gather some data, we'll do our best to ...
jordan.baucke's user avatar
18 votes
9 answers
14k views

Has spectrum analysis ever been used successfully to analyse historical price data?

Spectrum analysis is often used to analyse waveforms. A common configuration, for example, is to create a graph where X is time, Y is frequency, and the brightness of each position represents ...
alan2here's user avatar
  • 313
18 votes
1 answer
14k views

What is the best live options data API?

What is the best/cheapest service to get real-time (as real-time as you can get) on stock options? I'm looking for the fastest update on the ENTIRE market, with a few stocks prioritized, so I need ...
David Menard's user avatar
16 votes
9 answers
39k views

Data source for historical Share Outstanding totals for individual stocks?

Data is normally adjusted for splits/reverse splits, etc. The current shares outstanding is usually available. Is there a data repository that captures the shares outstanding for any point in the ...
Rage With The Machine's user avatar
16 votes
3 answers
6k views

Free market data (delayed or snapshot)

I know there are similar questions but I don't think there are any identical ones. Basically, I'm looking for one of these two things. Delayed market data feed. A tick by tick feed, but delayed by ...
Andrew Rasmussen's user avatar
14 votes
3 answers
2k views

Literature on generating synthetic time series for testing

I have some market data (daily time series) for bond prices and CDS indices and I would like to generate synthetic versions of these which are statistically "similar" for testing trading strategies. ...
mathman's user avatar
  • 241
14 votes
6 answers
10k views

Earnings and valuation data sources online

Are there any free/cheap sources for historical data on company earnings and valuations? I can get historical price data from Google and Yahoo, and it looks like I can get about five years of ...
Zach's user avatar
  • 1,381
13 votes
3 answers
2k views

Data for the Tulip mania

The Tulip mania is considered to be one of the first recorded examples of a speculative bubble in modern history. Long story short, the newly introduced tulip plant in the United Provinces, combined ...
Raskolnikov's user avatar
  • 1,527
13 votes
1 answer
2k views

Where can I find data on the interbank lending market?

Where can I find disaggregated interbank lending data (i.e. bank A lends to bank B x money at y rate)? I could only find data on interest rates. I would accept LIBOR market data as well as any ...
Max Li's user avatar
  • 562
12 votes
7 answers
4k views

Which data sources are available for cryptocurrencies?

I am primarily looking for price and market cap histories for cryptocurrencies like Bitcoin, Ethereum, zcash, ... What are some good data sources and APIs where I can download history as well as get ...
snth's user avatar
  • 486
12 votes
1 answer
2k views

What's the most efficient way to store options and time series data for backtesting?

I would like to know what database would you guys use for storing around 500GB-1TB of options and time series tick data. The idea is to use it for backtesting so it would have to be as efficient as ...
edd's user avatar
  • 223
12 votes
3 answers
2k views

Why isn't all market data free?

I am hoping any answers can be threaded somewhere between "don't be naive" and starting a quasi-political flame. Transparency is suppose to be good for markets and also a social good. The market ...
Rage With The Machine's user avatar
11 votes
5 answers
17k views

Quick way to check what 'tape' a stock belongs to?

For the SIP feeds, there is the CTA and the UTP plan and they cover Tapes A,B and Tape C respectively. Is there an easy way to check on google what tape a stock would belong to? Particularly when it ...
Palace Chan's user avatar
  • 1,347
11 votes
2 answers
4k views

Why don't data sources use ISIN instead of symbol?

I've been messing around with stock data off and on for a year or two and just recently found out about the ISIN. Up until I found some data from Siblis Research, none of the other data sources used ...
bstovall's user avatar
  • 111
10 votes
3 answers
4k views

Algorithm to detect the aggressor side of a trade

Most of the exchanges provide aggressor side property of trades (e.g. Tag=5797 AggressorSide on CME) in their raw data. But many data providers do not provide this information via their datafeed API's....
Serg's user avatar
  • 1,022
10 votes
4 answers
12k views

Where can someone get free (or very cheap) high frequency tick forex data?

I am currently working on a large data set (approx 80 million data points over 10 years). I would like another set of data that has one currency in common. Eg, I have EUR/USD and would like USD/CNY or ...
Patty's user avatar
  • 215
10 votes
2 answers
2k views

Implying risk-free rates using Put/Call parity

I recently purchased SPX options data from the CBOE. Normally, if the data is OK and the Put-Call parity holds, one should expect to correctly imply ZC (Zero Coupon bond) prices and forwards by ...
BS.'s user avatar
  • 165
10 votes
2 answers
11k views

API for after and pre market data

Is there an API or APIs similar to the Yahoo! or Quandl APIs, that give the same access to pre and after market data? I know I can scrape the Nasdaq or Yahoo! Finance sites to get a pre/after market ...
BryanK's user avatar
  • 203
10 votes
2 answers
2k views

Mass Market Data Source

My current project requires large amounts of historical and real-time market data (1m or 5m bars for various products, mostly US futures for as far back as available). This data will be analyzed by ...
Matt Bell's user avatar
  • 383
10 votes
4 answers
375 views

When did volatilities start to smile in capital markets?

Glimpsing through literature, I read that volatilities in the equity market started to display a smile after the crash in 1987. But when did volatilities start to smile in capital markets?
user40989's user avatar
  • 203
9 votes
2 answers
4k views

Without Bloomberg, how can retail investors know how many shares have been shorted daily?

Many friends can't afford a Bloomberg terminal, particularly when the pandemic has unemployed some of them. This answer can't assist them. How else can amateur investors determine the number of ...
user avatar
9 votes
2 answers
8k views

Difference between google finance and yahoo finance?

I am wondering about the huge differences of the data provider google finance and yahoo finance. I am interested in the monthly data from adidas listed on xetra. In google: ETR:ADS and in yahoo ...
Ivanov's user avatar
  • 93
9 votes
4 answers
1k views

Efficient Markets Paradox

Basically all Quant Finance theory is build on No-Arbitrage presumption and Efficient Markets Hypothesis. The known Grossman-Stiglitz Paradox says: if one can't make money from trading, one wouldn't ...
emcor's user avatar
  • 5,795
9 votes
4 answers
460 views

Is there data on market participants at a particular moment?

I am looking for data on market participants at a particular moment (or some proxy/approximation). For example, how can I tell whether mostly big players and HFTs are dominating the market in ...
Sam's user avatar
  • 91
9 votes
2 answers
14k views

Market Data Sources Bloomberg Vs Reuter

In my project, we have two version of systems. One version is for derivative trades and other version is for bond trades.For derivatives we get the market data from Reuters and for Bonds we are ...
user1706047's user avatar
9 votes
2 answers
3k views

Which algorithm should I look into to kick off my research in algorithmic trading? [closed]

I have recently undertaken a research into automated algorithmic trading algorithms. The aim of the research is to focus on studying algorithmic trading and trying to improve a basic implementation ...
k9ty's user avatar
  • 191
9 votes
2 answers
528 views

Where can you find data on non-trading stocks?

My data source for end of day prices only gives the prices of the trades during the day. If a stock stops trading/goes out/moves to another exchange|changes symbol. I never hear about this. My ...
monksy's user avatar
  • 766
9 votes
2 answers
10k views

Getting ETF data from google finance

I hope this is on-topic. I want to set-up a set of investment rules and back-test it on a mix of asset-classes. Thus I thought that using ETFs for the back-test would be a good idea (time series could ...
Richi Wa's user avatar
  • 13.7k
8 votes
3 answers
1k views

How to account for jumps in intraday data when calculating beta?

I am calculating betas on intraday trade data at 15-minute intervals. For simplicity sake, let's assume I am modeling \begin{equation} Y = \beta * X + c \end{equation} where $Y$ is the return of XLF ...
silencer's user avatar
  • 1,553
8 votes
1 answer
3k views

When does the Epps effect start?

Wikipedia defines the Epps effect as follows: In econometrics and time series analysis, the Epps effect, named after T. W. Epps, is the phenomenon that the empirical correlation between the returns ...
vanguard2k's user avatar
  • 2,925
8 votes
2 answers
1k views

How can one determine approximately what percentage of options trades are buyer-initiated vs. seller-initiated?

How can one determine approximately what percentage of options trades are buyer-initiated vs. seller-initiated? What measures of order flow are available specifically for options, preferably for ...
user avatar
8 votes
3 answers
546 views

What is an acceptable error on implied volatility?

Given an implied volatility surface (on equity indexes) and a calibrated model, what is the range of error on implied volatility a trader would accept ? This obviously depends on the model used to ...
vanna's user avatar
  • 545
7 votes
4 answers
43k views

Where to get price data on Credit Default Swaps?

I trust market-driven CDS more than credit ratings. Where can one get the CDS of corporate bonds of major companies? Are there any good internet links? If charts on the historical end-of-day prices ...
curious's user avatar
  • 1,037
7 votes
6 answers
2k views

What sources would you recommend for Real Time Market Data other than Bloomberg/Reuters?

I am dealing with a strategy that is not high-frequency based. The strategy consumes normalized data from Bloomberg and Reuters. For US equity market, can someone recommend some real-time data ...
7 votes
2 answers
358 views

What close price to assume for thinly traded stocks?

If a thinly traded stock has not traded for the last few days (volume=0), is it better to use the last known trade price (i.e. roll over last non-missing trade price) or use last known bid/ask/...
Raj's user avatar
  • 71
7 votes
1 answer
2k views

Can anyone give me a practical example of pricing and calculating IV on equity index options? (i.e. using real market data)

I have been trading (mostly equity and equity index) options for a while now and I want to apply a slightly more quantitative approach to my trading - specifically, by calculating IV and incorporating ...
traderJoe's user avatar
  • 173
7 votes
1 answer
1k views

Historical Hedge Fund Index Data

Can anyone point me to some Hedge Fund index data - daily levels of the HFRX or something similar, that is available for free and has history back to 2007? The data available through my broker seems ...
evanrsparks's user avatar
7 votes
3 answers
5k views

Equity short Interest data source

I'm looking for short interest data (those disclosed on 15 days basis to FINRA) As far as I know FINRA publishes only OTC data (http://otce.finra.org/ESI). Nasdaq.com contains only nasdaq traded ...
yety's user avatar
  • 201
6 votes
2 answers
4k views

Cap/Floor ATM Rate

This is a question on cap volatility market data. The quotes usually include volatilities for different strike (1%, 2%, ... 5%) and maturities (1Y,2Y,...20Y). One volatility for each combination of ...
rokeby's user avatar
  • 61
6 votes
1 answer
3k views

What are the known flaws and limitations of OptionMetrics data?

Several researchers are skeptical about the database quality, but their argumentation is somewhat unclear to me. For instance, Constantinides, Jackwerth and Perrakis (2008) (link): [...] we were ...
Igor Pozdeev's user avatar
6 votes
3 answers
920 views

What is the correct / expected behavior for a market order sent to an empty book?

Should it stick around until liquidity shows up? (GTC) Should it cancel any size for which there is no liquidity? (IOC) Is there such a thing as Market GTC or Market Orders must always be IOC?
chrisapotek's user avatar
6 votes
1 answer
478 views

What are some quantitative method behind etf vs cash arbitrage?

Has there been any studies done on the correlation between etf vs cash (i.e. GLD vs GD) for example and how they should theoretically move together, and what fundamental reasons could cause them to ...
DKM's user avatar
  • 498
6 votes
5 answers
3k views

CAC40 components historical data

I'm looking for historical data of the CAC40 components. I looked at these previously asked questions: What data sources are available online? Finding historical data for indices as well as Yahoo ...
m_vdbeek's user avatar

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