# Questions tagged [volatility]

For questions related to measurements of the range of returns for a given equity, bond, or market index.

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### Is Implied- and Historical Volatility based on solely Business days?

I'm trying to compare historical and implied volatility for different stocks. Still, since I can't tell what these numbers are based on (for historical volatility) and referring to (for Implied), I'm ...
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### confusion about gamma and gamma portfolios

Generally, a long gamma portfolio will make money when the underlying: (a) out-realizes the historical volatility (measured close to close) (b) out-realizes the implied volatility (more than making ...
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### Duration required for stock beta calculation

I am using stock beta as a parameter for calculating intrinsic value of a stock using DCF method. I know how to calculate beta of stock, but I want to know what should be length of historical data (...
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### Volatility cost of buying Vanguard ETFs before market open on e-trade

I am buying Vanguard ETFs on e-trade. For the purposes of this question, suppose I am buying VO (a multi-sector mid-cap fund). It is a popular symbol (share class total net assets: 51B). I typically ...
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### What is the real return of a portfolio? Markowitz vs "real" return

I am working with mean variance optimization (MVO) and as such after "training" my model I test the results on a test dataset. Markowitz states that the return of a portfolio is the "...
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### General formula to understand standard deviation of a stock price over a time horizon?

A book that I'm reading (Paul Wilmott, Derivatives) states the following: The standard deviation of the stock price over this time horizon is $$\sigma S = \sqrt(1/52)$$ where, the time horizon is ...
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### Who is counter party to leveraged ETF e.g TQQQ

I was looking at return of TQQQ, and was surprised with result. I understand that, it is not equity based ETF, and is using derivatives. But I could not understand who is acting as counter party of ...
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### Why would long-term investor care about volatility? [duplicate]

I'm 35 and I want to start investing for my retirement. My question is, why would you care about volatility if your investment horizon is 30+ years? In order to get a more clear picture of volatility ...
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### Why have some stocks spiked then crashed, all within 30 days?

I'm referring to stocks that peaked like a mountain than crashed, but that weren't short squeezes. Is this Irrational Exuberance? If you know more examples, just edit this post please. I know little ...
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### How do stock volatility halts work?

I was watching GME stock on Feb 24, 2021, and it halted twice: once at 3:38pm ET, and it resumed trading at 3:43pm ET again at 3:46pm ET, and it did not resume trading until after 4:00pm ET This is ...
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### Why isn't "everyone" short VXX?

I'm going to attempt to keep this question short instead of providing some rambling, and very likely, wrong explanation of the question. As far as I can tell from my novice research the VXX note is ...
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### For a mutual fund - if jensen's alpha keeps increasing with time, then how does beta of the mutual fund get impacted with time?

I am building an excel model to calculate rolling alpha at a monthly level to analyze different equity mutual funds. Along with the rolling alpha, I am also calculating rolling absolute returns and ...
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### What possible reasons are behind the GBP -> EUR rate being the same for a few days?

The GBP -> EUR exchange rate has been stuck at a value of 1.11 since Saturday 7 of September, up from 1.10 since the day before. This seems to me highly irregular, as if all trading activity has ...
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### Can ETF be short-squeezed?

Can ETFs be short-squeezed? I'm not familiar with how they work. For ETFs like SPY, it seems it buys and sells stocks in the portfolio. For ETFs like UVXY, it seems it has no real stocks. How does ...
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### What's the difference between a variance swap and a long straddle option trade?

A long straddle is when one is anticipating a swing in stock price, but you’re not sure which direction it will go. And a variance swap is a financial derivative used to hedge or speculate on the ...
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### Why did SPVXSPIT drop 95% in February?

In February 2018, SPVXSPIT (S&P 500 VIX Short Term Futures Inverse Daily Index) seems to have dropped about 95%, but after much googling, there does not seem to be any discussion about this. The ...
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### Where can I find Bitcoin Misery Index?

There has been a lot written about Bitcoin Misery Index: The index is called the Bitcoin Misery Index (BMI) and was designed as a trading tool for investors to take advantage of volatility in BTC ...
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### Why do large price stocks have larger price fluctuations?

Amazon stock can handily have 40 dollar intraday price fluctuations, but if that happened to Snap or Fitbit, those stocks would go bankrupt. Is there a fundamental reason why price fluctuation sizes ...
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### Do stock prices go up and down by percentage or by dollar?

I am studying the term volatility drag. The common example is that I invest $1000 in a company stock. Say, the stock goes down 50% and than goes up 50%. This would result in$250 loss. I would only ...
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### Do Stop Loss orders make sense even though they increase volatility?

If most people add Stop Loss orders to their portfolios, then when the market "corrects", then all these SL triggers will fire, but there won't be enough buyers, so prices will fall further, and ...
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### Volatility indicator

Is there an indicator for the volatility of a stock? When I say indicator I mean like P/E ration, book value etc. If yes, where can I find it? I follow yahoo finance by the way.
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### When using the VIX index, is it similar to calculating volatility?

Im trying to understand the VIX Index, it gives the implied volatility of the S&P500. Now if I was to calculate the volatility of the S&P500 using standard deviations of the returns over a ...
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I have a covered call that is going to expire in 15 minutes. It's $1.30 in the money. I'd expect with no time value left, the price to equal the intrinsic value ($1.30). However, it's still valued at \$...