Lost among all the discussion about the Federal Reserve is an interesting question: is there a bound on the behavior […]

On this page is an inflation expectations calculator. Using breakeven rates on nominal and inflation adjusted notes in constant maturity […]

We have written about your ideal savings rate.  Today, we follow through on what we promised to you - a […]

Below is a crude oil price return calculator for the price return on crude oil between any dates since 1987. […]

On this page is a daily inflation calculator for the United States.  It uses Consumer Price Index data from the […]

Remember a few weeks back when we discussed stock market investing using the Kelly Criterion to determine asset allocations? Today we're going to go in a different direction and use Kelly for what it was intended - betting!

The Kelly Criterion is a formula you can use to determine the proper size of a bet when there are known odds and a definite payout. With a little hand waving and some basic math (as I proved a few weeks back), you can also use it to help guide your investment decisions - namely when determining the size of a position you should take. Let's hop into some calculators.

Calculate the total return on the S&P 500 between two dates including reinvested dividends and inflation.

The Kelly Criterion is the brilliant summation of a betting strategy first discovered by Information Theorist John Kelly. Kelly came up with a betting system, his criterion, which optimizes bankroll growth based upon known odds and a definite payout. Roughly, if you can find an exploitable, repeatable edge... Kelly's system tells the maximum you should bet based upon that criteria.

I know, this is a topic we here at DQYDJ have covered before... specifically back on July 2nd, 2009 when gas was averaging the incredible price of $2.63.  This specific article was inspired by the recent comeback gas prices have made - gas today average $3.33 a gallon nationwide, according to Fuel Gauge Report from AAA.  However, today we're going to give you the opportunity to calculate what it would take for you to hedge your gas prices with our nifty gas price hedging calculator!