The Jonathan Coulton song Mandelbrot Set is a tribute to both the fractal itself and to its father Benoit Mandelbrot. The second book of the Mode series by Piers Anthony, Fractal Mode, describes a world that is a perfect 3D model of the set.
Bloomberg Dollar Spot Index. The Bloomberg Dollar Spot Index (BBDXY) tracks the performance of a basket of 10 leading global currencies versus the U.S. Dollar. It has a dynamically updated composition and represents a diverse set of currencies that are important from trade and liquidity perspectives.
CBOE Volatility Index. A mathematical measure of the implied volatility of options trading on the S&P 500 index. That is, the CBOE Volatility Index attempts to measure the likelihood of option prices to vary unpredictably in the context of a particular pricing model in this case, the Black-Scholes model. A higher number on the index represents greater volatility, while a lower number represents lower volatility.