How and where to get the time series of the values USDEUR?
The Federal Reserve Bank publishes exchange rate data in their H.10 release. It is daily, not minute by minute. The Fed says this about their data: About the Release The H.10 weekly release contains daily rates of   exchange of major currencies against the U.S. dollar. The data are   noon buying rates in New York for cable transfers payable in the   listed currencies. The rates have been certified by the Federal   Reserve Bank of New York for customs purposes as required by section   522 of the amended Tariff Act of 1930. The historical EURUSD rates for the value of 1 EURO in US$ are at: http://www.federalreserve.gov/releases/h10/hist/dat00_eu.htm If you need to know USDEUR the value of 1 US$ in EUROS use division 1.0/EURUSD.
This depends on a combination of factors: What are you charged (call it margin interest) to hold the position? How does this reduce your buying power and what are the opportunity costs? What are the transaction costs alternative ways to close the position? What are your risks (exposure while legging out) for alternative ways to close? Finally, where is the asset closing relative to the strike? Generally, If asset price is below the put strike then the call expires worthless and you need to exercise the put. If asset is above the call strike then put expires worthless and you'll likely get assigned.  Given this framework:  If margin interest is eating up your profit faster than you're earning theta (a convenient way to represent the time value) then you have some urgency and you need to exit that position before expiry. I would not exit the stock until the call is covered. Keep minimal risk at all times. If you are limited by the position's impact on your buying power and probable value of available opportunities is greater than the time decay you're earning then once again, you have some urgency about closing instead of unwinding at expiry. Same as above. Cover that call, before you ditch your hedge in the long stock. Playing the tradeoff game of expiration/exercise cost against open market transactions is tough. You need sub-penny commissions on stock (and I would say a lot of leverage) and most importantly you need options charges much lower than IB to make that kind of trading work. IB is the cheapest in the retail brokerage game, but those commissions aren't even close to what the traders are getting who are more than likely on the other side of your options trades. &gt; Ideas have no inherit value, so they can't be cheap or expensive  I really don't know where you get this idea. This comment shows some ignorance of how business works, and doesn't give me much confidence in the value of your upcoming suggestions. The safest investment in the United States is Treasures. The Federal Reserve just increased the short term rate for the first time in about seven years. But the banks are under no obligation to increase the rate they pay. So you (or rather they) can loan money directly to the United States Government by buying Bills, Notes, or Bonds. To do this you set up an account with Treasury Direct. You print off a form (available at the website) and take the filled out form to the bank. At the bank their identity and citizenship will be verified and the bank will complete the form. The form is then mailed into Treasury Direct.  There are at least two investments you can make at Treasury Direct that guarantee a rate of return better than the inflation rate. They are I-series bonds and Treasury Inflation Protected Securities (TIPS). Personally, I prefer the I-series bonds to TIPS.  Here is a link to the Treasury Direct website for information on I-series bonds. this link takes you to information on TIPS.  Edit: To the best of my understanding, the Federal Reserve has no ability to set the rate for notes and bonds. It is my understanding that they can only directly control the overnight rate. Which is the rate the banks get for parking their money with the Fed overnight. I believe that the rates for longer term instruments are set by the market and are not mandated by the Fed (or anyone else in government). It is only by indirect influence that the Fed tries to change long term rates. "A junk bond is, broadly, a bond with a non-negligible risk of default.  (""Bond"" ought to be defined elsewhere, but broadly it's a financial instrument you buy from a company or government, where they promise to pay you back the principal and some interest over time, on a particular schedule.) The name ""junk"" is a bit exaggerated: many of them are issued by respectable and reasonably stable businesses. junk bonds were required to do large leveraged buyouts.  This means: the company issued fairly risky, fairly high-yield debt, to buy out equity holders.  They have to pay a high rate on the debt because the company's now fairly highly geared (ie has a lot of debt relative to its value) and it may have to pay out a large fraction of its earnings as interest. What is a junk bond and how does it differ from a regular bond?  It's only a matter of degree and nomenclature.  A bond that has a credit rating below a particular level (eg S&P BBB-) is called junk, or more politely ""non-investment grade"" or ""speculative"".  It's possible for an existing bond to be reclassified from one side to another, or for a single issuer to have different series some of which are more risky than others.  The higher the perceived risk, the more interest the bond must pay offer in order to attract lenders. Why is there higher risk/chance of default? Well, why would a company be considered at higher risk of failing to repay its debt?  Basically it comes down to doubt about the company's future earnings being sufficient to repay its debt, which could be for example:" I use and recommend barchart.com. Again you have to register but it's free. Although it's a US system it has a full listing of UK stocks and ETFs under International > London. The big advantage of barchart.com is that you can do advanced technical screening with Stochastics and RS, new highs and lows, moving averages etc. You're not stuck with just fundamentals, which in my opinion belong to a previous era. Even if you don't share that opinion you'd still find barchart.com useful for UK stocks. You'd have to buy that information. Quoting from this page, Commercial Historical Data Higher resolution and more complete datasets are generally not available for free. Below is a list of vendors which have passed our quality screening (in total, we screened over a dozen vendors). To qualify, the vendor must aggregate data from all US national/regional exchanges as only complete datasets are suitable for research use. The last point is especially important as there are many vendors who just get data from a couple sources and is missing important information such as dark pool trades. They offer some alternatives for free data: Daily Resolution Data 1) Yahoo! Finance– Daily resolution data, with split/dividend adjustments can be downloaded from here. The download procedure can be automated using this tool. Note, Yahoo quite frequently has errors in its database and does not contain data for delisted symbols. 2) QuantQuote Free Data– QuantQuote offers free daily resolution data for the S&P500 at this web page under the Free Data tab. The data accounts for symbol changes, splits, and dividends, and is largely free of the errors found in the Yahoo data. Note, only 500 symbols are available unlike Yahoo which provides all listed symbols. And they list recommendations about who to buy the data from. This would be a nice Raspberry Pi project for Mathematica, which comes bundled free on the Raspbian OS. You can program it up and leave it running.  It's not expensive and doesn't use much power. A program to monitor stock prices or volume could be written as simply as :-  This checks the volume of trades of Oct 2014 US crude oil futures every 30 seconds and sends an email if the volume jumps by more than 100. The financial data in this example is curated from Yahoo.  If specific data is not available or not updated frequently enough, if you can find an alternative online data source it's usually possible read the data in.  For example, this is apparently real-time data :- {Crude Oil, 92.79, -0.67, -0.71%} After leaving the above program running while writing this the volume of trades has risen like so :-  Edit I just set this running on a Raspberry Pi.  I had to use gmail for the email setup as described in this post: Configuring Mathematica to send email from a notebook.  Anyway, it's working.  Hope I don't get inundated with emails. ;-) Fairly straightforward to match the result from the calculator soup link.  There is a formula to calculate n from the future value s (using natural logs) In Excel This was derived as shown  To calculate n from the inflation-adjusted future value si requires using a solver since an algebraic formula cannot be formulated.  As demonstrated  Calculations done using Mathematica 7.