S.A.P.R.M. Systems (we pronounce it "sap-ram") is:
Statistical Arbitrage Portfolio & Risk Management Systems
1. SAPRM Systems will monitor an index or sector's individual components to locate the top 15 healthy gainers and bottom 15 healthy losers. "Healthy" in this case is defined as daily price movements which largely follow a normal distribution, e.g., if a stocks price movements over the entire timeframe of the analysis has not gone outside of 3 standard deviations. Conversely, if over the timeframe of analysis (6 Months) a stock has gone up 45%, and 38% of that move happened in 2 days, it will not be seen as healthy and will be ignored by the unique, built-in relative strength/weakness indicator. Using this example, the stock which gained 45% in 6 Months would almost certainly not make the highest gainers list.
2. Once these 30 stocks (15 long and 15 short) have been identified, they will constantly be monitored by 2 calculators. One will calculate and display how the trader can construct a portfolio of the 30 stocks to achieve beta neutrality. The other calculator will display how many shares (likely shown as a ratio) of each stock is necessary to produce dollar neutrality.
3. SAPRM Systems has the unique feature of vacillating between momentum signals and mean reversion signals (always' structured as long/short). It does not assume the industry held belief in 9% confidence bands, and is therefore not subject to large draw-downsbased on the assumption that stocks must at some point revert. However, if a 95% or 99.7% confidence band holds and the prices reverse, the system will identify this movement and assume a touch of the arithmetic mean.
4. Std. dev. of all stocks, ETF's, et cetera are individually displayed. The std. dev. of the 15 longs collectively are displayed, and the std. dev. of the 15 collective shorts are also displayed.
5. Beta on all individual stocks is displayed.
*One version of Saprams will have a group of dividend paying stocks. 50% of the portfolio will be eligible for the dividend payout at all times and the other 50% will be invested to mitigate risk (specifically market and event risk). The current out-performers will have the greater probability of paying the dividend and those are the very ones Saprams will hold long positions in. And the under-performers which will be less likely to issue the dividend will be held short.