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Diary of a Quant

Ninja Quant

Sharing thoughts and ideas about Quantitative trading

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Substack
PricingOnly free issuesPublishesWeekly
Issues6Founded3 years agoLast Issue2 years ago
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Latest Issues

A thought on alpha discovery

Imagine millions of alphas as particles in a chaotic environment. Moving up and down, their correlation windows as well as their respective coefficients are ever changing. Sometimes there are patterns sometimes is just noise.

This reminds...

2 years ago
29

One of the oldest HFT alphas

The best alphas are usually the ones backed up by common sense. If I tell you that a buy order will probably push the price higher and a sell order lower you wouldn't be surprised. And if you are surprised, imagine you own an ice cream cart...

3 years ago
87
1

Get your alphas right

People generally confuse raw signals with alphas, and trade raw signals as if they were trading in a discretionary way. Nothing wrong with that, you can make money sure, but it isn’t probably the most efficient way to manage your strategies...

3 years ago
26
1

Your backtest is probably wrong

So you have decided you want to become a quant trader. You have been reading a lot of articles, and exchanging some tweets with X (twitter) quant-influencers, think Python is just too slow and only use R for its libraries.

Because you’re a...

3 years ago
35
2

Algorithmic trading terrorism

The definition of High-frequency trading varies depending on who you ask. However, all definitions share the following baseline: "HFT refers to the usage of automated strategies that place large quantities of orders very quickly."

Now, wha...

3 years ago
36

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    Sharing thoughts and ideas about quant trading

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