Quote from Chuck Krug:
how do you forward test a strategy?
i read somewhere it's getting out-of-sample results
care to elaborate a bit, please?
Backtesting "results" can be manipulated to convince the trader that the system "works" and the outcome is sufficient to warrant trading real time (money...real money ;not simulated trades.)
Forward testing is ,of course, real time where the trader can continue to test the method under real time conditions, which will highlight price slippages,current market conditions that are not easily identifiable in backtesting, and the opportunity to streamline stops and profit levels.
The only thing you are doing by forward testing is losing time, but getting the satisfaction that the applied method will be suffiently profitable to commit.