Show HN: Bateman, a stock trading system I'm working on • Hacker News Board

Re: Show HN: Bateman, a stock trading system I'm working on

#51

Post by fawce » Sun, Mar 24, 2013, 11:52 PM UTC

henning wrote: post #41

minimax wrote: post #39

"And, in fact, every single one of our simulated trades was profitable, even while the stock overall was going up and down." This is a huge red flag with respect to the simulation results. You show some trades like this one > 2013-03-05 6:41,2013-03-05 7:15,14.47,14.48,LONG,5192,75145.75,52.85,100237.47 where you enter the trade and exit a penny higher. It sounds like you're just looking at the trade print and assumi…

Thanks for this. I hadn't looked at that carefully enough and need to think more about it.

If you are up for porting Bateman to python, over at https://www.quantopian.com we let you backtest with high quality intraday data for free. You can also reference our opensource backtesting engine, http://zipline.io, to see how we handled modeling slippage and order simulation.

Re: Show HN: Bateman, a stock trading system I'm working on

#52

Post by pnathan » Mon, Mar 25, 2013, 3:24 PM UTC

random42 wrote: post #17

pnathan wrote: post #16

Spiffy! A buddy and I have been working on a similar thing (not open sourced (yet?)) for a while off and on. The model we're going to shoot for is to look at online opinion on the stock as a base for estimating rise/fall.

Since stock prices are all about speculation and market psychology, it is an interesting approach. I'd be very interested to know about how you implement. How do you define and track the "online" world though?

> How do you define and track the "online" world though?

Wink wink, nudge nudge, that's the secret sauce. ;-)

But more seriously, the plan of attack right now is just to scrape newsfeeds from news sources via rss.

While of course this is susceptible to bias in the media, my hypothesis is that so are the stocks. A rising tide lifts all ships as has been said: so long as you buy lowish and sell highish you'll do all right[1]

Other routes might be:

- twitter

- stock trading forums

- industry news sites

[1] bear markets demand some kind of shorting strategy I believe.

Re: Show HN: Bateman, a stock trading system I'm working on

#53

Post by pnathan » Mon, Mar 25, 2013, 3:31 PM UTC

niggler wrote: post #18

pnathan wrote: post #16

Spiffy! A buddy and I have been working on a similar thing (not open sourced (yet?)) for a while off and on. The model we're going to shoot for is to look at online opinion on the stock as a base for estimating rise/fall.

Derwent Capital Markets (website down now) tried to do this with twitter, but ultimately collapsed: http://www.idsnews.com/news/story.aspx?id=80469 http://venturebeat.com/2012/05/28/twitter-fueled-hedge-fund-...

Interesting. The venturebeat story suggests that the strategy works, but the company's web presence is dead. Hmm.