tiny sliver

Pick how you want your money split across investments. We keep it there, even after prices move it out of shape.

1

Pick your mix

Decide what share of your money goes into each stock or fund.

2

Prices move it out of shape

Whatever goes up becomes a bigger share than you meant it to be.

3

We bring it back

On whatever schedule you set, trades pull it back to your target.

One holding or 250 — your mix can be as simple or as detailed as you want.

Group holdings into a slice, and slices into slices — several levels deep if you need it.

Works with your brokerage

Alpaca Supported
More brokerages Coming soon

Paper and live Alpaca accounts both work today. We're working on adding more brokerages next.

Nothing trades without your OK

See it before it happens

Every rebalance starts as a preview — the exact trades it would make, with nothing submitted yet.

Choose how much control you want

Let it execute right away, hold trades in a cancel window you can call off, or require your sign-off every time.

Run what-if scenarios

Pick a mix, see how it would actually have done — no account, nothing saved.

Backtest a portfolio →

Pricing

Free

$0

  • Paper trading
  • 1 connection
  • Weekly rebalancing
  • Any mix, any depth

Pro Coming soon

Live trading

  • Everything in Free
  • Live brokerage trading
  • Multiple connections
  • Daily or weekly rebalancing
Notify me

Ready to put this on autopilot?

Connect a brokerage, set your target mix, and we'll take it from there.

tiny sliver is a self-directed portfolio automation tool — not a robo-adviser, not AI-based, and not a registered investment adviser or broker-dealer. Nothing here is investment, financial, tax, or legal advice or a recommendation to buy, sell, or hold any security. You choose every security in your allocation yourself; the tool never selects, recommends, or picks securities on its own — it only automates rebalancing trades toward the targets you set, on the schedule you choose. All trades execute through Alpaca Securities LLC, a registered broker-dealer, directly in your own brokerage account; tiny sliver never holds your funds or securities. Trading involves risk of loss, including loss of principal.