Theory: with a spread of 0 (and tradecost of 0), if we trade at varied levels (i.e. think two grids intermixed, or think multiple orders allowed), with varied lot sizes, and hedging is allowed, then it is never possible to ensure a profit - however small - provided the number of trades are limited/is finite (i.e. rules out mGrid/Williama).
True or false?
Not financial advice. For testing purposes only. Do not use on live account
With near 100% confidence: for non-varied levels, the statement is true. One can achieve a 75%, even a 81.25% win rate, but the big losses will offset the big winners if enough trades are made.
How about varied levels?
Not financial advice. For testing purposes only. Do not use on live account
With 100% confidence now: for non-varied levels, the statement is true. One can achieve a good win rate %, but the big losses seen (less often) will offset the big winners (more often) if enough trades are made. The end result always hovers towards 0.
Not financial advice. For testing purposes only. Do not use on live account
