Questions tagged [price]

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12k 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 ...
3k views

Negative price of oil

Yesterday and today, some kinds of oil have been traded for negative prices. Does it mean that I can take oil from seller and at the same time I get money? Or is the negative price connected only ...
440 views

local price return and volume relationship

I wanted to see how the stock price and volume relationship is locally. So I tried ranking both the daily return (at day t) and volume (at day t) base on a 30 day rolling window with historical daily ...
2k views

Threshold calculation for buying a mean-reverting asset

I am trying to figure-out an optimal policy for buying a unit when its price follows a mean-reverting price process (Ornstein–Uhlenbeck), when I have a finite time deadline for buying the unit. I ...
6k views

Probability of stock closing over a certain price

A stock has beta of 2.0 and stock specific daily volatility of 0.02. Suppose that yesterday's closing price was 100 and today the market goes up by 1%. What's the probability of today's closing price ...
386 views

Relation between price changes and trading volume (market impact)

It is quite a well-know phenomenon that trading volume has an impact on a stock price: the more you buy the higher is a price because of demand increment. I'm wondering about models that can describe ...
1k views

Are there any standards for the precision of stocks prices, amount of stocks etc.?

I am currently developing a software that needs to store stock prices and the amount of stocks (sold/purchased) of a given company. Now I am wondering which data types I need to use to store this data....
219 views

Nelson Siegel Model calculation of the zero bound price at time zero that expires in 2 years

I am somewhat stuck and not sure how to proceed, so any help would be appreciated. I got the Nelson Siegel model with all parameters for the real data. The curve that is produced is yield vs maturity. ...
358 views

Does margin trading affect market price?

Does supply and demand in CFD trading affect the actual price of financial market?
660 views

The Dog That Did Not Bark?

I've been reading Cochrane's 2006 paper "The Dog that did not bark: A Defense of Return Predictability", but i am still struggling to understand what the dog was, and why it wasn't barking? If anyone ...
189 views

How to simulate one-minute bars data from one-day bars?

I need to generate one-minute bars out of one-day bars to test the performance of an algorithm (speed, memory usage, etc). I don't need them to resemble real data, but they should be consistent with ...
159 views

Resources to learn the applications of SVD in quant finance?

I have been searching for quite a while on how singular value decomposition is used in analyzing stock price behavior. I know how to perform it on a matrix of stock prices, have the results in python ...
666 views

What does implied volatility means for different call and put strike prices?

Why there different implied volatility for different strike prices?, Can plz someone explain to me? I am pretty new to options. Thanks in advance
251 views

Why is it more accurate to simulate ln(S) rather than S?

Let's take a process $S$ that satisfies: $$dS = \mu S dt + \sigma S dz$$ with $dz$ a Wiener process, $\sigma$ the volatility of $S$, $\mu$ the expected return of $S$. From ...
230 views

Interpretation of Risk Premium for Schwartz one-factor model

I have to deal with this one-factor model: \begin{equation*} \begin{cases} dS_t = \alpha \bigl(\mu - \log(S_t) \bigr)S_t \, dt + \sigma S_{t} \, dW_t \, , t \geq 0,\\ S|_{t=0} = S_0 > 0, \end{...
47 views

Does convexity in the IV space means convexity in the price space?

Let's assume that we only look at OTM options to construct a Risk Neutral Density (RND). As the RND is the second derivative of the price of the option with respect to the strike, we would expect ...
129 views

Replication of "A model of competitive stock trading volume"

I am replicating the paper "A model of competitive stock trading volume" by Jiang Wang http://web.mit.edu/wangj/www/pap/Wang94.pdf for a research project . I realize this is a very specific question ...
2k views

Scale prices in multiple stocks for comparison

I have a chart with prices of multiple stocks. The problem is that some prices are below 100 while others are above 1000, so the chart is really ugly. How do I compare historical in multiple stocks, ...
148 views

Art market specificities

I am looking for some reference on the art market in light of quantitative finance. I am interested in some things: The market in general, how is it compared to financial market ? What about common ...
2k views

Clean vs. Dirty Price and its impact on duration

When calculating duration would you use the clean price or the dirty price? why for either?
471 views

Normalizing SPY ETF time series data with its sector ETFs?

I am looking to compare the returns of a sector rotation strategy between the various SPDR sector ETFs XLY, XLP, XLE, XLF, XLV, XLI, XLB, XLK, XLU vs. the ...
3k views

What is the order flow imbalance?

The price impact of order book event is an arxiv article which shows that, over short time intervals, price changes are mainly driven by the order flow imbalance, defined as the imbalance between the ...
995 views

Correlation: Use Price or Return? Return doesn't make sense [closed]

I am trying to find the correlation between the returns of two indices over a long period of time (10 years+) . Should I be using the index daily price level or the index daily total return? Most ...
665 views

Strategies to merge bid, offer and trade price time series into a single price time series?

I'm doing intraday analysis on low volume stocks. There are just a few trades every day, but a whole host of bids and offers. In order to reduce the sparsity of the time series data I'd like to ...
204 views

Commodity market. Why would actual sellers / buyers bother about speculative price?

Investopedia says: The following are two types of futures traders: hedgers speculators An example of a hedger would be an airline buying oil futures to guard against potential rising prices. An ...
143 views

Quick way to extrapolate call price as function of strike

Let's say I know the price of a call for two different values of strike. Is there a quick way to guess the price for another value of strike ? Actually, I know that C(100)=15 and C(90)=20 and I have ...
226 views

How current prices is formulated in markets?

I can't understand how immediate prices are formulated in stock & currency (Forex) markets. I have been informed that every tick means one new deal that closed in current price, but this can't be ...
2k views

In Yahoo! Finance, what determines the number of decimals for a stock/index quote?

In Yahoo! Finance, we see the following quotes among others: ...
196 views

How to distinguish trending/consolidating market conditions programatically?

Can someone please suggest me a method to programatically identify trending/consolidating market condition by reading ohlc data? Currently I'm thinking of checking the current price within last n ...
43 views

I ask my question here because I want to know more about the cumulative Parisian options introduced by M. Chesney, Mr. Jeanblanc-Picué and Mr. Yor in 1997, then developed by Hugonnier in 1999 and F. ...
76 views

What is the minimum price change required for a trading position increase of 1?

Suppose I have a trading system that calculates the daily risk adjusted position from the annualized risk, that is, the standard deviation of the returns of a stock over an arbitrary period of time. I ...
87 views

Why do leveraged and inverse leveraged WTI ETNs have this price relationship?

UWTI: 3x leveraged exposure to WTI DWTI: 3x leveraged inverse exposure to WTI The inverse relationship between these two symbols seems to trend toward the origin on a log-log plot (using log base 2)....
200 views

Finding relative price strength as defined in CANSLIM stock picking methodology

I am wondering if there is any website that provides relative price strength as is defined in CAN SLIM stock picking methodology. For the CAN SLIM difinition I am looking at this article: http://www....
136 views

Calculating stock weight for SEC13F filers

I am trying to evaluate weight of stocks in portfolio for an investor. For this purpose I use SEC13F filings for particular quarters and historical prices from Yahoo. There are stocks in portfolio ...
588 views

How do I get a good mid-price?

I 'm trying to get a mid price for forex data. This answer by alex suggests that I shouldn't simply take ask minus bid. I am not a high frequency trader or market maker. My purpose for the fx mid ...
192 views

How would a FX price probability distibution function look?

I would like to see how the currency price levels are distributed in a probability function. But I don't even know if there is such a thing or if perhaps its just common knowledge and readily ...
410 views

Why using mid price to compute mark-to-market P&L if it is less accurate than using bid/offer price?

Why using mid price to compute mark-to-market P&L if it is less accurate than using bid/offer price? If spread is wide, mid is really not representative of what you would get by getting rid of ...
314 views

What does it mean by "A one period bond is a claim to a unit payoff." from Cochrane?

In the textbook Asset Pricing by John Cochrane, on p. 19 (corresponding table on p. 18), he claims that A one period bond is of course a claim to a unit payoff." What does he mean by "a unit ...
246 views

Why is volume a totally independent variable from price?

In Martin Pring's book "Technical analysis explained", when talking about volume, he asserts that it is "a totally independent variable from price" Why is this?
107 views

Brownian motion Price and Hedge problem

Let $W_t$ be a Brownian Motion and let $S_t= S_0e^{(rt- \frac{\sigma^2}{3!}t^3 +\int_{0}^{t}\sigma W_s ds )}$ Price and Hedge at time $t=0$ European call with maturity $T$ and strike price $K$, ...
155 views

How to estimate today's closing price?

I'm working on interday trading algorithm and I have a basic question: How can I estimate today's closing price? I need it to predict tomorrow closing price. Should I use the price few moments before ...
36 views

What should basic statistical analysis of different price forecasts contain

we have set of historical data of different price forecasts and the real prices. When assessing "which forecasts are best", what parts of the analysis should one never miss out? We are at a very ...
3k views

How does after-hours trading affect the next session prices? [closed]

I just read about after-hours trading (and here ), but remain unclear as to what happens to the price level of the next open session. In other words, Do the prices change during after-market hours? (...
1k views

Difference in weekly and monthly data

I am confused about the following: I checked daily and weekly prices for Exxon (and also GE). But the values for Open, Low, High, Close, Vol., Adj. Close for both data streams seem to differ from each ...
296 views

Why most of apple stock price since 10years have been gained overnight?

I've been playing with stock data and I've discovered a terrible truth : in 10 years apple stock price passed from roughly 3\$to 100$. However this gain isn't due to intraday price variation ...
70 views

corporate bonds - general questions [closed]

Newbie here and not trading IRL but for a school assignment. I want to buy corporate bonds because they are a safe bet from what I read. I have a few questions though, I hope I will find an answer ...
97 views

Net volume reference for uptick and downtick

I am new to finance and I have been looking at market data in terms of prices, volumes and net volumes. From what I have gathered: Volume - number of transactions (buying-selling) throughout the ...
456 views

Determining the probability of arriving at a price by a time T

A useful calculation for ascertaining the risk of something might be determining the probability of a realization of a set of stock prices $X$ being greater than or equal to some future price $x$. I ...