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https://www.linkedin.com/pulse/flash-crash-brings-out-worse-pontificating-pundits-robert-carver?trk=hp-feed-article-title-publish I was short a couple of GBP contracts, overall up about 3% since yesterdays close. So not a spectacular day but better than the other way round. GAT

That's the whole account. GAT

Just to add two points to this: Firstly at least using the kinds of technical rules that I use (trend following rules which can be systematically tested rather than magic charting voodoo which cannot) the efficacy of these starts to fall off once you have holding periods of less than a couple...

Oh sure it's definitely an emerging trend and plenty of people are doing it (UBS O'Conner for decades, AHL since 2007). But people aren't writing about it. Office politics play a part of it, but also I don't want to commute anymore, and I bluntly value my time more than the extra money. GAT

Oh believe me they've tried. But I'm resisting manfully. Doing nothing is best (I think you knew that from the way you phrased the question - had we been in court you would have been in trouble for leading the witness). Having said that if you are bored it's might be worth looking at something...

That's pretty accurate. And yes, about a quarter of the trading is done by humans. I'm happy to answer questions on AHL but bear in mind (a) my information might be 3 years out of date and (b) I signed an NDA about 3 inches thick which I'm not planning to break. GAT

Sourced from man.com Use at your own risk, bear in mind local regulatory restrictions etc. GAT

Most hedge funds centralise their execution regardless of how many decision makers there are. Would be crazy if one desk was selling whilst another was buying. There are some other efficiencies involved as well. Same at banks - when I was working on interest rate options desk we had to do our...

Nope, not any more (I used to be in my old job). That was one of the reasons I said no to OPM. I have no interest in the hassle of being regulated. GAT

Sorry for late reply to this old thread. Must have missed it. I think there are a two key problems with this 'industry'. The first is that a lot of these platforms are rubbish. Just in terms of design they're missing key components or overcomplicated in others. You often have to use their...

Yes they have approached me. But I said no. GAT

I'm a trader. If you go to the leaderboard, that's me at the top :-) [for today at least!] GAT

No it's not there. This is something that keeps popping in and out of Beta testing. When I first registered they had trade level data then it vanished; then I recently logged on via my smartphone and there was trade level data there (which was incorrect incidentally!) and then it vanished again...

I think your arguments apply mainly to higher frequency trading where the models decay quickly and have a huge appetite for data. As a smart arse who has a holding period of ~1 month on average I can say that I don't work hard building algos, spend about 10 minutes a day monitoring my trading...

I don't live in the 'land of the free' (I assume you mean the US). Not that any of this is going to help the OP. GAT

You're right. If your personal right to privacy is more important than not breaking the law, if it's so vital that you don't mind going to jail or paying a massive fine, if it trumps your job security and your future income and wealth, if it's more important than the legal and regulatory system...

You've clearly never had a job in the industry. When you sign your employment contract one of the clauses will say you have to follow the firms personal dealing rules. At a minimum these will require all trades to be disclosed to the firm. If you don't do and you get caught you'll be fired. You...

Based on my experience on both the buy side and the sell side: 1- Probably depends on where they are working. Someone working as a bank teller for BoA with no exposure to price sensitive information is probably fine. Someone in a senior position close to, or in, an investment banking role will...

It's true I've been very, very lucky. Trend following sucks because you spend most of your time in a drawdown. Because I've been in this business since 2006 I've got used to that. I think there are two key things. The first is to ensure that the swings in your p&l aren't so big that they...

If you're worried about robustness use equal weights. On the second point, I don't do any forcing of any kind. All the grouping means is that all equities will have the same forecast for that particular rule on a given day. But I don't force them all to have a 5% forecast weight to that rule...