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How I Became a Quant (2007) [pdf]

https://engineering.nyu.edu/sites/default/files/2021-10/How_I_Became_a_Quant%20%281%29.pdf
62•sonabinu•5d ago

Comments

djoldman•1h ago
(2007)

MUCH has changed since then.

keiferski•1h ago
I came across this guide (dated 2025) a couple years ago and thought it was interesting. Not a quant or even in finance though, so I don’t know how accurate it is:

https://www.dropbox.com/scl/fi/da7zfjj2rplwzf2sfiriz/Buy-Sid...

apt-apt-apt-apt•1h ago
What's a convenient and safe way to open PDFs safely?

Some options seem to be: Upload to google drive (inconvenient), use some open-source tool (LLM suggests DangerZone), use a VM (very inconvenient)

nebezb•1h ago
I use markitdown[0] religiously. You’ll lose fidelity for anything complex (math equations, images), but it does a great job 95% of the time in my experience.

I’m assuming the attack surface is reduced. I invoke it through a docker container. But this might be a misplaced sense of safety.

[0] https://github.com/microsoft/markitdown

qwertox•1h ago
Dropbox is rendering that pdf as html, so using that link should be safer than downloading the pdf.
philipkglass•48m ago
Open it with Firefox. The Firefox PDF renderer is implemented in Javascript and sandbox-restricted like any unknown web site.
bormaj•56m ago
Gappy is one of the more decorated, public figures in the space. That PDF gives a candid overview of what it's like to interview/work in the industry.
r_lee•1h ago
Should be added to the title.....
altmanaltman•1h ago
Don't think it's a guide like "Hey here's how YOU can BECOME A QUANT!" bs, more about the stories/history of 25 different quants. So more of a personal story/history doc. I think it's an interesting read if you are a finance nerd
dang•49m ago
Year added above. Thanks!
b00ty4breakfast•1h ago
that's a whole-ass book! I nearly crashed my poor little box, she barely has the ram to open 400+ page PDFs without my browser also being open.
neko_ranger•1h ago
I wonder how fun being a modern quant really is. It seems like one of those things that sounds more fun in your head, but the reality is different. Kinda like "studying physics", going pro in a sport, or becoming a rockstar. People see the end result and don't see how much work it takes to get there or what the day to day is really like
mathisfun123•53m ago
i don't know what the point of this book is - there's nothing rockstar about being a quant. not only do not all quants "generate alpha", even the ones that do are just overworked data scientists. ask anyone that actually works in the industry - fancy math is no longer a thing ("exotic option pricing"). so would "how i became an accountant" be just as interesting? how about (more accurately) would "how i became a data scientist"?
609venezia•45m ago
> ask anyone that actually works in the industry - fancy math is no longer a thing

Huh? What happened? This is a very interesting claim I would love to hear elaborated

sharifhsn•22m ago
The “fancy math” associated with quant usually refers to pricing derivatives like options.

The thing is that there isn’t really strong institutional demand for exotic derivatives, people are happy using existing methods and just applying those to current markets.

The other type of fancy math has to do with deriving alpha, which is also not that complex, from a statistics perspective you’re mostly using linear regression or other basic forms of regression.

The hard part of quant is implementation, making sure your data is right, hunting through poorly understood markets, and managing risks carefully and understanding them.

There’s also ML but that’s equally complex in quant as it is anywhere else.

kccqzy•16m ago
> The hard part of quant is implementation, making sure your data is right, hunting through poorly understood markets, and managing risks carefully and understanding them.

In my experience I have seen far more division of labor than you describe. Real quants don’t do work like making sure your data is right or even much of implementation; they delegate that to software engineers. But a cheap quant shop might be too cheap to hire SWEs so quants end up doing this work instead. The real quant work is just hunting through poorly understood markets.

7777777phil•47m ago
I always wanted to be a quant, until I actually was a quant (internship). The division of labour in modern banks / market markets is so high that the scope of an individual’s work becomes much less than you would expect.
highfrequency•44m ago
Good instinct. A lot of the day to day is debugging nitty things, reconciling small differences in results, trying not to make dumb mistakes. Almost all attempts to do very smart theoretical novel work fail, often because of extremely mundane engineering and data issues.
Agingcoder•30m ago
Im reasonably familiar with the exotics quant space.

It’s essentially IT/data work - the days of sophisticated maths are mostly gone. There always was a lot of code, but these days for most people there’s little to no new maths.

From what I’ve seen, post-2008 the job changed significantly, with more IT, less maths, more standardization - basically the job moved from bespoke everything to super industrialized. You’ll be able to have your model work for one underlying and one product, but what’s really useful is for lots of underlyings and many products - and that’s very hard.

That being said, and that’s important, you must understand the maths behind, otherwise you won’t be able to do anything useful.

credit_guy•12m ago
> but these days for most people there’s little to no new maths.

You are right. For most people there's little to no new maths.

But not for all. There's still plenty of good quality math to be done in the exotics space. However, there's a bit of Catch 22 that prevents people from doing new math: all the big shops have had exotics libraries since before 2008, and because of the exotics hiatus between about 2008 and maybe 2013, the research momentum was lost. After that, most quants in the space were happy to find ways to use the old stuff, and apply small tweaks at the margins. Most small shops use vendor models (Numerix, Murex) or open source (QuantLib), and people who use vendor solutions or open source are not looking for cutting edge stuff.

But there's still good math left out there.

mikert89•10m ago
theres math, its mostly about pulling in obscure data sources, rank and file in alot of hedge funds dont even get to see what actually makes money
conformist•17m ago
Imo the fun quant stuff these days is about predicting returns and not pricing derivatives. As others have said here, the pricing part is mostly commoditised and more about managing software.
nrclark•38m ago
Kind of reads 25 people's stories about "How I became a parasite". Why not create new things, instead of making a career out of leeching the wealth created by others?
fragmede•31m ago
Did you actually read them?

I didn't go to NYC, but Money is fungible so it's a simple math problem.

How much non-parasite good can you do making $50k/year * 10 years? Even if we ignore taxes and you donated your entire salary, that tops out at $500k worth. If instead you could make, say, $500k/year * 10 years, and then quit and form your own non-profit for $2,000,000 and do 4x as much good.

stevenhuang•26m ago
Everyone benefits with more efficient markets.

It is easy to fall into the trap of thinking HFT/low frequency quant firms "leech wealth".

You can get out of the trap by learning about what they do and the essential role they play in the proper functioning of our markets.

goodmythical•25m ago
Why not practice compassion instead of critiquing others?
keiferski•7m ago
This isn’t really a good angle to critique finance IMO, because it is indeed a necessary part of the modern economy.

A better angle is how finance tends to acquire a ton of smart young people that could/would otherwise be doing work that has more benefits to society. It’s hard to blame the individual here, because the salaries are orders of magnitude larger in finance vs. say, aerospace engineering. Would I turn down $700k at a hedge fund to earn $90k at a science lab? Probably not, unless I was already independently wealthy.

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How I Became a Quant (2007) [pdf]

https://engineering.nyu.edu/sites/default/files/2021-10/How_I_Became_a_Quant%20%281%29.pdf
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