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I received a message from IB that for each execution, my API sends 261 orders+modifications+cancellations. If I can not improve it, it will close my account. My account has generated tens of hundreds of commissions per year for IB. I have no way to reduce that ratio under 10 as suggested by IB...

if the strategy is reverse engineered, the broker front- runs you.

I think we are talking about the exceptional strategy, not the every-day strategy the brokers have seen with hundreds of traders, like moving average crossover etc.

it may be true for a system that only works for a specific market inefficiency. so go ahead to exploit the inefficiency before it goes away. sometimes, for a system that exploits human behavior, and we know the human behavior won't go away even if 100 years later, such system worth every...

even we agree that a "novel" at least is known by few traders, thus it is not truly novel in terms of scientific discovery, it is still important for the traders to guard those systems so that fewer people know it the better. regarding the difficulty of reverse engineering the system, as...

there is no secret that they do not know about? It is not true. who knows how james simon trades? we are talking about the case where the trader has a real exceptional strategy, not the one that is based on MA or RSI with different parameters.

that may be because your strategy is still within the text book and needs lots of discretion. for a high profitable mechanical system, that could be different.

I am still puzzled how you protect your trading strategy. can you describe it in a few words?

one way to protect your strategy is to use multiple brokers, and open and close the position in different brokers. this works pretty well if the position is a basket of a few stocks, thus diverse the stocks among different brokers. I am curious how James simon protects his strategy? does his...

they can steal your password of the sever. even secure login can not protect you.

if I were Chinese leader, i would impose a tax exporting to US, thus reducing the the trade imbalance with US while average Americans pay more for everday life. the surplus from trading with US is useless for china now when china has 2.4 T dollars in balance, most of them invested in US bonds...

i agree it is difficult, but it is possible to do it, especially for the strategies that work for standalone instruments. for example, most of us on this forum choose a broker and enter and exit positions on a few instruments, while the instruments traded are all independent. if the...

system that is based on mass behavior will work forever, because, as livemore once said, there is no new stuff on wall street.

why do you think a strategy is impossible to be reverse engineered? if you can not do it, it does not mean others can not either.

if anyone thinks that it is impossible to reverse engineer a trader's strategy, i am an example to prove it untrue. I once spent 18 months to crack a guru's strategy, which significantly shorted the time i needed to learn how to trade if ever i could be able to learn by myself. I still think...

is trend following system much harder to automate than mean-reversion system? especially for the trend system that is based on bar by bar analysis? I heard few firms on wall street trade on the candlesticks. Btw, does James simon trade on trend following?

I met a guy who exclusively uses candlesticks with high precision. it is apparent candlestick works, but like any strategy in trading, very few can grasp how it works, otherwise, the market would not exist. regarding academic paper, if the author finds out a candlestick pattern that works, do...

China government is very stupid to ship so much cheap products to USA for paper money and then lend the paper money to USA government to feed those umemployed.

allocate more time to the posts by the better traders.

he is great but does not come to this forum.