[keywonc]

Hellomoney: JSFiddle for backtesting investment portfolios. http://hellomoney.co/

You can design portfolios from 24,000+ stocks and funds, and backtest it as you build it. Helps you understand how input (each holding) affects the output (historical performances) in a "build-to-think" way.

If you frequent finance/investing related parts of Reddit, you might have seen it. It's the official tool of /r/portfolios now.

* Full disclosure: I designed this tool.

[askafriend]

Hey there, just wanted to thank you for an incredibly useful tool! I found it randomly through Reddit and while it could be a bit more user friendly, I'm so glad something like this exists.

It would be quite cool to have a mobile version of something like this. I might take on such a project since I'm a mobile developer :)

[keywonc]

Happy to hear you found it useful!

As the designer, I admit it could be more user friendly :sob: Please feel free to let me know if you have any suggestions.

If you get to create your own mobile tool, I would love to check it out too.

[jld89]

Is there a tutorial for a total beginner? I wish to start using this to invest but I am at a loss on how to start...

[keywonc]

It's one of the highly requested features. We definitely want to add that in the future. My apologies for the inconvenience!

Here are two popular ways to get started:

1. Start with a template:

One way to get started is to scroll down on the homepage, pick one of the "lazy portfolios" and fork it.

For example, you can go to this Three-Fund Portfolio page https://hellomoney.co/portfolio/FsF71j, click "Save As," and tweak the percentages or amounts to your liking.

Although Bogleheads wiki is not the most friendly to beginners, pages like these may be useful for picking the % weights.

https://www.bogleheads.org/wiki/Asset_allocation

https://www.bogleheads.org/wiki/Lazy_portfolios

2. Pick 401(k) funds

If you're in the situation where you need to construct a portfolio from a limited set of 401(k) funds, you can use Hellomoney to pick the funds and the weights.

Click "New Portfolio" on top of the page, delete the default fund (VFINX), and start entering the available funds in your 401(k) plan by name or symbol.

Not all funds may be available on Hellomoney, but you should be able to add a majority of them. (Generally speaking: if you don't see a symbol for the fund, it's not a publicly available fund, and you won't find it on Hellomoney.)

Then you can delete the funds that you're not interested in (high expense ratios for example), or "turn them off" by making their weights $0 or 0%. Here are a few examples:

https://hellomoney.co/portfolio/16fb02

https://hellomoney.co/portfolio/aa4888

As you change the weights, you can see the historical performance that the portfolio would have had in the past, including how much it would have lost/gained in the past crashes and boom times.

Hope this helps! Let me know if you have any questions.

[patrickgordon]

Great tool.

Any intention of expanding to Australian markets?