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> Don't discount the knowledge you have from being deep into an industry. [...] diverse portfolio

It's worth emphasizing that investing in the same sector that you are employed-in is actually a kind of anti-diversification, and it won't usually show up using "rate my portfolio" tools.

The archetypal example that comes to mind--unusually extreme but illustrative--would be all those Enron employees who invested their 401(k) funds straight into their own employer.

Consider these three scenarios:

1. If your investments plummet but you keep getting wages from you job, you can try riding it out until they recover.

2. If you become long-term unemployed but your investments stay normal, you can sell a little to cover the gap.

3. But if you can't work and your investments plummet, you may be forced to "sell low" quite a lot to cover immediate expenses, and the long-term outcome is much worse.




> investing in the same sector that you are employed-in is actually a kind of anti-diversification

You can reduce your microeconomic risks by making investments in and around your sector of occupation. Especially when betting against yourself.

For example, someone who works in the electric vehicle space could reduce their risk by making personal investments in ICE companies, just in case EV adoption is slower than expected. A person who works in a payment processor could invest in visa/mastercard, to protect from the risk of fee rises. A privacy tech investor could put money into adtech, so they can make money whoever wins.


> For example, someone who works in the electric vehicle space could reduce their risk by making personal investments in ICE companies, just in case EV adoption is slower than expected.

This works well if the EV industry slows and ICEs are poised to dominate the future. This works very very badly if the vehicle industry as a whole slows and the entire sector tanks.


It may work in the actual case: EVs are the future, but the longer term future, and the market irrationally decides a company that makes 1% of the cars is worth 50% of the industry because they greatly overestimate how fast the transition will occur and the legacy auto makers (whose stocks have underperformed due to the same bad prediction) have plenty of time to use their substantial advantages to compete.


Yeah it only works well for narrowly defined microeconomic risks.

However, in sectors like vehicles there's a relatively low risk people will stop car purchases altogether but a very very high risk they'll buy from another manufacturer instead of yours.


> You can reduce your microeconomic risks by making investments in and around your sector of occupation. Especially when betting against yourself.

Or I can just put my money in something like VTI (total US stock market) or VT (total world stock). Effectively does the same thing with almost zero effort. One thing I don't really like about the comments here is how insistent people are in doing something specific as opposed to picking the simplest thing and then sticking to it. Most of the power of investing comes from time.

Admittedly, though, I have been putting new money into a leveraged ETF, RSSB, which is a 2x leveraged 50/50 global stocks and bonds fund (so 100/100). Existing money is still in VT. The only reason why I'm pursuing this is because of Cliff Asness's great article [1], which argues against going 100% stocks (which I used to do) and instead prefers using something like leverage on a 60/40 portfolio.

[1] https://www.aqr.com/Insights/Perspectives/Why-Not-100-Equiti...


1. It's normal in the tech industry to own a lot of stock in the company you work for. Investing in a vendor (in Nvidia's case) or another adjacent company is lower risk. You cannot avoid risk in investing, it's a natural part of the situation.

2. You can avoid the sell low situation by having 3-6 months of expenses saved in an emergency savings account. With all the layoffs in the last few years everyone should have gotten the message to do this. Even in a large downturn six months of expenses in a savings account is enough for you to re-skill and find new employment.


> It's normal in the tech industry to own a lot of stock in the company you work for.

For certain companies, but misleading: Most of that is stock which their employer structured into compensation, and sometimes they only kinda-maybe-potentially own it because it's an unvested RSU or un-exercised stock-option etc.

That's not the same as taking your paycheck and then choosing to spend part of it on shares from the open market.


Just because everybody is doing it, doesn’t mean it’s rational.

The people who held onto their RSUs from being hired at Zoom during the height of the pandemic might not be so happy they chose to double down on their employment risk with investor risk.


> Just because everybody is doing it, doesn’t mean it’s rational.

Also, an agenda that is rational for one party may be irrational for the other.

Many employers would be overjoyed if their workers agreed to be paid 100% in deferred-vesting RSUs and converted all their private savings into pure company stock. It would both drive the price up and shackle workers to certain company interests.

But if an employee sought the same outcome, we'd question their sanity.


Owning a lot of stock in the company you work for is another good reason not to concentrate more of your portfolio in the same industry.


Man, I'd be comfortably retired now if I had held my GOOG GSUs and sold (at peak) when I quit rather than selling them as I got them.

Same, my wife, worked for Apple from 2003-2010. We had Apple stock back in 2004/2005, for just a few $ a share... oh man.

But that went against most most financial advice, and we needed the money as it came.


> You cannot avoid risk in investing, it's a natural part of the situation.

You can, and should, diversify risk. You should invest outside the industry.


> You can avoid the sell low situation by having 3-6 months of expenses saved in an emergency savings account.

Maybe. You can also just be trying to catch a falling knife. Sometimes it's sensible to cut your losses but, of course, it's often not clear when (or if) that's the case.


    > You can avoid the sell low situation by having 3-6 months of expenses saved in an emergency savings account.
I see this (3-6 mos savings) constantly quoted in basic personal mgmt blog posts, but it seems unrealistic for most. Seriously, what percentage of people in OECD can do this? Surely, less than 5%. I am not sure it is great advice because it is discouragingly unrealistic for most. The average person has out of control expenses and 632 reasons why they cannot change anything. If you read any personal finance Q&A, they all eventually descend into this pattern. It gets boring. And most people who do save a lot have a much higher income than is average in their area.


Most people can without much trouble. Income follows a statistical distribution. It follows that most people could choose to live the lifestyle of someone earning 10% less than them and save 10% of their income per month, building a buffer that grows by about one month per year.

You are right in that they have 632 reasons they couldn't possibly do that, but they are clearly wrong since other people are. The correct thing to do is to realise that having a little bit of financial stability is a higher priority than those reasons in the majority of cases.

Or option B, which is figure out a way to earn more and keep lifestyle inflation in check. In theory, everyone should be able to take that path.

> And most people who do save a lot have a much higher income than is average in their area.

Cause or effect? Because if you save consistently you are going to automatically have a higher income than your more average peers. You all have the same average income but savers supplement that with passive income.


> I see this (3-6 mos savings) constantly quoted in basic personal mgmt blog posts, but it seems unrealistic for most. Seriously, what percentage of people in OECD can do this

Also worth noting that in most of the OECD, 3+ and even maybe 3 months depending on the situation is quite high, bordering on the wasteful. Americans have to worry about healthcare and crappy if present unemployment payments if they lose their jobs; in most other developed countries (of course your mileage will vary), you cannot be fired on the spot with no notice without compensation. And if you do, you don't lose your healthcare. Also, you can't be fired for being sick/unavailable to work for medical reasons, and at least some countries have medical provisions for burnout too (you get months of paid sick leave to recuperate, while your job is being kept).

Therefore, in most of the OECD (at the very least the EEA + UK + Australia and NZ), there are very few, if any, situations which can leave you with zero income with no notice. Therefore the safety cushion you need is much lower than an American that might lose their job tomorrow and then need to pay tens of thousands in medical bills.


Why is this being downvoted? There are lots of great points in this post. I never considered that most of the advice that I am reading is aimed toward US people, where the labour laws and social safety net for working people is awful, compared to the rest of OECD.


Probably because of the narrative that people are routinely fired out of the blue and that there is no recourse to also suddenly having tens of thousands of dollars in medical expenses also out of the blue.


I remember reading about a woman working at Amazon that was put on a PIP because she was missing to much work for her cancer treatments.


It doesn't really matter how regularly it happens, only that it does happen and that there is zero recourse in that case. So people need to build their own safety nets in the US.

I know it happens less frequently in tech, where people get compensation, but what % of workers are in tech? The median worker has no such luck.


And how comfortable are people in Europe and elsewhere when they don't have an income coming in?


As discussed, there is much less of a chance that you'll suddently find yourself with no income when you live in most of the EU+UK+Aus+NZ.

And if you do, you're still less uncomfortable because your healthcare is not tied to your employer. Unemployment and other related aids/insurances/benefits will vary wildly between countries, but I'd still bet the majority do it easier than in most US states.


Possibly. As you say there's a lot of variance. I don't generally assume that you can get quality healthcare, housing, and food in Europe with no source of income outside of government programs.

And certainly many countries have lower salaries and higher unemployment that the US does in general.


> I don't generally assume that you can get quality healthcare, housing, and food in Europe with no source of income outside of government programs.

And what's the issue with government programs? If someone without employment or revenues can get healthcare or food, that's good.

> And certainly many countries have lower salaries and higher unemployment that the US does in general

Higher unemployment yes, absolutely. Lower salaries you can't really compare because you need to adjust for a lot of things (quality of life, cost of living, things like the safety cushion one needs, etc.)


Coming from a family that has a frugal culture, it’s always been easy for me to save a substantial part of my income, even when I had to downsize my lifestyle after losing a relatively high paying job. Looking at how people around me spend their money, it can feel they’re actively trying to get rid of their entire salary.


> it can feel they’re actively trying to get rid of their entire salary.

They probably are, in a literal sense. Most people play status games and identify that money is a resource that can be used to buy higher status. They then work out how to spend all their money on status-boosting activities because they don't want money. They want status. And they want it ASAP because their instincts are confident that status now is more important than later.

It is a bit sad because it means they are less comfortable and prosperous later on, but there is not much that can be done. Human nature is a real obstacle; it isn't calibrated to understand exponential returns or capital investment.


More than currently do. Rates are low in higher income countries.

We never really teach these things, which is a shame because I think they have such value over time.

I've spent a lot of time helping people with budgets and I've found a few things to be common. To make this easier I'll just say "people" as a general thing of those coming for help.

1. People don't get why they're running out of money

2. They don't know what they're spending

3. They've not connected the idea that knowing what they're spending money on is important to figuring out where their money is going

This isn't a slight, it's just interesting to see that this connection has never really been made. Money is treated as an emotional thing rather than a mathematical thing.

And this is those who get to the point of seeking help - they're actively asking for help and have never tried just tracking their spending. It's an entirely new concept.

The next big thing is that people talk about unexpected costs coming up and have never stepped back to look at the issue more broadly.

Some find birthdays an "unexpected cost" but they're not actually a surprise if you are able to look ahead more.

More unexpected are repairs and replacements. But stepping back although your tires were a surprise this year and your brakes a surprise last year, the idea that something would need dealing with on your car isn't.

The 3-6 mo savings is really a goal before suggesting moving on to riskier investments rather than "oh just have this". One day of spending is better than none. A week is better, a month better and 3-6 is better still. Beyond that the benefit drops massively, so you can start putting away money for much further in the future.

It's boring but that's imo because there's not much to basic personal finance.

If you spend more than you earn you are screwed.

If you earn more than you spend, you can build up savings.

If you are right on the line, you're either statistically shocking or your spending should move one way or the other.


It's unrealistic for people who have no money to invest.

But the top 5% in the US make 300k+. If you can't save anything making 300k you have a spending problem. Honestly I'd you're making 100k can can't save you have a spending problem.


It is interesting that you cofounded two points from my point to assume that I meant the top 5% of earners in the US. No, I have see personal finance Q&A from all income levels where people have out of control spending. I think this is the norm in the US.


The confounding is natural - If you even think about investing, then having a financial cushion is the best investment to de-risk your life.

If you don't, you are screwed either way.


It may be unrealistic for many people, but it should not be unrealistic for the subset of people who have available funds to invest in the stock market, which is who the GP's advice is for. Putting money into stocks before you have an emergency fund is bad prioritisation.


> Seriously, what percentage of people in OECD can do this?

Far more than those that actually do.


Check out https://earlyretirementnow.com/2021/05/26/the-emergency-fund... from Early Retirement Now. He also links to other posts debunking the need for emergency savings.


Worth noting that they're not saying you don't need that kind of value on assets available to you. They are simply advocating for keeping that money invested rather than as cash and they have access to immediate fairly large loans (via credit cards and something about their mortgage).


> It's normal in the tech industry to own a lot of stock in the company you work for.

It's actually not. The tech industry is much bigger than startups and the like, and outside of that environment it's not normal to own a lot of stock in your employer.


I would have said it's larger tech companies where it's fairly common to own (some) stock that's actually worth something. (So maybe not a lot in the scheme of things.)




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