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abwillingham
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I've read a lot of older posts that mention the "dynamic universe" and I assume its a custom universe that changes throughout a backtest. But how do you set one up? |
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SpacemanJones
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Hi Andreas, I don't know if this will work going forward, but I've stopped buying biopharma. I'd noticed some bad blowups in some of those stocks, and I think it's because my models like fcf, but biopharma that looks attractive with alot of fcf might often be milking a cash cow and might be approaching the end of patent protection. |
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judgetrade
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"dynamic" universe in terms of two volumne buy rules and one volumne sell rulle e.g. you take for exampmple the volume of the last 50 days and set buy rules (above 100k below 500k) in the sell rule for example belwo 1000k I am agnostic to industries (besides financials, them I exclude and I exclude stocks from china). Also FCF needs to be generated from the profit loss statement (and then feed the balance sheet), e.g. if there is no money the company makes, there is no free cash flow (exceptions are selling assets that move from the balance sheet to profit loss, but that itself can be a signal for restructuring which can (combined with other factors) be a positive. Have not checked, but I think my main models do not pick biotech stocks. Got another strategy I am working on which is mostly discreationary in the nano cap space, that captures stock promotions, the screen of p123 scans for stocks that are prone for promotions (mostly junk) and those stocks run (about 60-120 times a year depending on the screen that results in a port) over a 100% in one day (and you have to sell then intraday). But I am still reasearching, have to do the backtest by hand and will take a year. (there will be another tread on this) Had some converstations with traders that take the other side of the trade after the spike shorting those promotion runner stocks (wich is an even better strat, but not possible if you can not lend those stocks, you need to be in a prop shop for this that provides those stocks to be lended)... The underlying portfolio itself even has an upward trift (about 10% ann.), so its you treat those stocks like option (that might run) and they itself have generally an upwarad thrift (with high vola though). The strat itself needs screen time (stocks run mostly after or before trading hours and you have to sell fast when the run occours, bc. after the run they decay usually fast (thats how the short seller make money on the other side)... The strat itself has it seasons, e.g. the big money is made in 6-12 weeks of a year. Will keep you posted... If I got more results, will share here... Best Regards Andreas P.S. Any stuff to share with the new Data and new functions you all have been successfull lately? |
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Edit 1 times,
last edit by
judgetrade
at Oct 31, 2020 4:54:31 AM
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geov
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I don't know if this will work going forward, but I've stopped buying biopharma. I'd noticed some bad blowups in some of those stocks, and I think it's because my models like fcf, but biopharma that looks attractive with alot of fcf might often be milking a cash cow and might be approaching the end of patent protection. My healthcare strategy only buys biopharma if yield is high: RBICS(BIOPHARMA)&Yield>ema(3,0,getseries("S&P500Yield"))+2.0 |
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abwillingham
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How are you calculating S&P500Yield? |
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