Buy the portfolios you build, right here on Arithmos
No copying holdings into another app. Pick a portfolio, enter an amount, and buy every company in it in one go. We are testing this now with a small group.
How it will work
1. Build or pick a portfolio
Describe an idea or choose one of the public portfolios, as you do today.
2. Choose an amount and buy
Your money is split across every company in the right proportions, down to fractions of a share.
3. Keep it on track
Rebalance with one tap, on a schedule you pick, or automatically when it drifts from its targets.
Questions
When can I use it?
We are testing it with a small group first. Join the waitlist and it will switch on in your account when your turn comes. We won't email you about it: you will see it the next time you sign in.
Which companies can I buy?
US-listed shares, plus many companies from other markets through their US listings. If a company in a portfolio can't be bought, it is shown greyed out and your money goes to the rest in the same proportions.
Will this be advice?
No. Arithmos is a research tool. You choose what to buy and when, and the value of investments can go down as well as up.
Buying through Arithmos is not available to the public yet and will only launch once the necessary regulatory approvals are in place. Nothing on this page is investment advice. Capital at risk. Meanwhile you can still take any portfolio to your own broker from its page, or build one now.
