Online stock screener to find stocks that are negatively correlated to another stock/index?
Finviz can be screened by beta which is an index of correlation. Finviz covers all major North American exchanges and some others. There are lists with Top 1,000 Most and Less correlated stocks for different markets, I think you'll find the solution here:  https://unicornbay.com/tools/most-less-correlated-assets SeekingAlpha has a section dedicated to Short ETFs as well as others. In there you will find SH, and SDS.  Both of which are inverse to the S&P 500.  Edit: I linked to charts that compare SH and SDS to SPY. You may want to have a look at DiversifyPortfolio which will give you the info you want plus quite a bit more. They offer various tools all related to stock correlation and diversification. You'll be able to create heatmaps and various other charts showing stock correlations. It also has several scans which allow you to search for stocks that meet your requirements in terms of correlation to existing positions in your portfolio or to specific stocks / ETF's.
I'm actually building a UK stock screener right now. It's more of an exercise in finding out how to work out technical things like MACD and EMA calculations, but if those are the things you're interested in, it's at  http://www.pifflevalve.co.uk/screen-builder/ As I say, it's more of a personal project than anything commercial, but it's fun to play with. "It sounds like this is an entirely unsettled question, unfortunately.  In the examples you provide, I think it is safe to say that none of those are 'substantially identical'; a small overlap or no overlap certainly should not be considered such by a reasonable interpretation of the rule. This article on Kitces goes into some detail on the topic.  A few specifics. First, Former publication 564 explains: Ordinarily, shares issued by one mutual fund are not considered to be substantially identical to shares issued by another mutual fund. Of course, what ""ordinarily"" means is unspecified (and this is no longer a current publication, so, who knows). The Kitces article goes on to explain that the IRS hasn't really gone after wash sales for mutual funds: Over the years, the IRS has not pursued wash sale abuses against mutual funds, perhaps because it just wasn’t very feasible to crack down on them, or perhaps because it just wasn’t perceived as that big of an abuse. After all, while the rules might allow you to loss-harvest a particular stock you couldn’t have otherwise, it also limits you from harvesting ANY losses if the overall fund is up in the aggregate, since losses on individual stocks can’t pass through to the mutual fund shareholders. But then goes to explain about ETFs being very different: sell SPY, buy IVV or VTI, and you're basically buying/selling the identical thing (99% or so correlation in stocks owned).   The recommendation by the article is to look at the correlation in owned stocks, and stay away from things over 95%; that seems reasonable in my book as well. Ultimately, there will no doubt be a large number of “grey” and murky situations, but I suspect that until the IRS provides better guidance (or Congress rewrites/updates the wash sale rules altogether!), in the near term the easiest “red flag” warning is simply to look at the correlation between the original investment being loss-harvested, and the replacement security; at correlations above 0.95, and especially at 0.99+, it’s difficult to argue that the securities are not ”substantially identical” to each other in performance. Basically - use common sense, and don't do anything you think would be hard to defend in an audit, but otherwise you should be okay." "This answer is somewhat incomplete as I don't have definitive conclusions about some parts of your question.  Your question includes some very specific subquestions that may best be answered by contacting the investment companies you're considering. I don't see any explicit statement of fees for TIAA-CREF either.  I suggest you contact them and ask. There is mention on the site of no-transaction-fee funds (NTF), but I wasn't able to find a list of such funds.  Again, you might have to ask. Vanguard also offers some non-Vanguard funds without transaction fees.  If you go the Vanguard page on other mutual funds you can use the dropdown on the right to select other fund companies.  Those with ""NTF"" by the name have no transaction fees. Scottrade also offers NTF funds.  You can use their screener and select ""no load"" and ""no transaction fee"" as some of your filters. You are correct that you want to choose an option that will offer a good lineup of funds that you can buy without transaction fees.  However, as the links above show, Vanguard and TIAA-CREF are not the only such options.  My impression is that almost any firm that has their own funds will sell them (or at least some of them) to you without a transaction fee.  Also, as shown above, many places will sell you other companies' funds for free too.  You have plenty of options as far as free trades, so it really depends on what funds you like. If you google for IRA providers you will find more than you can shake a stick at.  If you're interested in low-cost index funds, Vanguard is pretty clearly the leader in that area as their entire business is built around that concept.  TIAA-CREF is another option, as is Fideltiy (which you didn't mention), and innumerable others.  Realistically, though, you probably don't need a gigantic lineup of funds.  If you're juggling money between more than a handful of funds, your investment scheme is probably needlessly complex.  The standard advice is to decide on a broad allocation of money into different asset classes (e.g., US stocks, US bonds, international stocks, international bonds), find a place that offers funds in those areas with low fees and forget about all the other funds." "when the index is altered to include new players/exclude old ones, the fund also adjusts The largest and (I would say) most important index funds are whole-market funds, like ""all-world-ex-US"", or VT ""Total World Stock"", or ""All Japan"".  (And similarly for bonds, REITS, etc.)  So companies don't leave or enter these indexes very often, and when they do (by an initial offering or bankruptcy) it is often at a pretty small value. Some older indices like the DJIA are a bit more arbitrary but these are generally not things that index funds would try to match. More narrow sector or country indices can have more of this effect, and I believe some investors have made a living from index arbitrage.  However well run index funds don't need to just blindly play along with this. You need to remember that an index fund doesn't need to hold precisely every company in the index, they just need to sample such that they will perform very similarly to the index.  The 500th-largest company in the S&P 500 is not likely to have all that much of an effect on the overall performance of the index, and it's likely to be fairly correlated to other companies in similar sectors, which are also covered by the index.  So if there is a bit of churn around the bottom of the index, it doesn't necessarily mean the fund needs to be buying and selling on each transition.  If I recall correctly it's been shown that holding about 250 stocks gives you a very good match with the entire US stock market." I had the same problem and was looking for a software that would give me easy access to historical financial statements of a company, preferably in a chart. So that I could easily compare earnings per share or other data between competitors. Have a look at Stockdance this might be what you are looking for.  Reuters Terminal is way out of my league (price and complexity) and Yahoo and Google Finance just don't offer the features I want, especially on financials. Stockdance offers a sort of stock selection check list on which you can define your own criterion’s. Hence it makes no investment suggestions but let's you implement your own investing strategy. I've looked into Thinkorswim; my father uses it. Although better than eTrade, it wasn't quite what I was looking for. Interactive Brokers is a name I had heard a long time ago but forgotten. Thank you for that, it seems to be just what I need. "http://finance.yahoo.com/stock-alerts/stock-watch/add/?.done=/stock-alerts/ You will have to have a yahoo account. If you want to provide an alternative delivery email address, visit the URL above. Click ""Stocks Watch"", enter ticker(s) and price(s) at which you want alerts, then at the bottom select the ""email"" radio button. If your preferred email address is not listed, click the ""Add an email address"" link and follow the instructions. I don't know what their limit is, but I currently have three addresses set up -- two to non-@yahoo addresses -- and it works fine." This is from Google Finance right now.