(06) Security & custody

Your money stays in your name.

We hold a pen, not the keys.

Your accounts sit at an independent qualified custodian. Tranche can trade inside them. It cannot move money out, change who owns them, or add anyone who can.

Trading authority only · read-only data links

Owner

You

Your name on every account. Only you can withdraw, transfer out or change a beneficiary.

owns · withdraws

Qualified custodian

Your custodian

Holds the assets, sends your statements, and confirms any transfer with you by phone.

trading authority only

Adviser

Tranche

Places the trades your advisor signs and deducts its fee. Sees your data read-only.

(01) Custodians

Four custodians. Your accounts stay with yours.

We work with the custodian you already use where we can. Logos below are examples: replace them with the custodians you work with.

Qualified custodian · SIPC member

+

Qualified custodian · SIPC member

+

Qualified custodian · SIPC member

+

Qualified custodian · SIPC member

+

(02) What we can and can’t do

Five things we can do. Five we never can.

We can

✓

Trade inside your accounts

✓

Rebalance to your bands

✓

Harvest tax losses

✓

Sweep idle cash to T-bills

✓

Deduct the quarterly fee

We can’t

—

Withdraw money

—

Transfer assets out

—

Change your address or email

—

Add a payee or a beneficiary

—

Open an account in your name

(03) To move money out

Three people say yes, and the last one is you.

Step 1

You ask

In the app or by phone, for any money leaving your accounts.

Step 2

Your advisor checks

Against your policy and your liquidity floor, and calls you back.

Step 3

The custodian confirms

By phone, with you, before anything moves. Tranche is not on the call.

(04) Your data

Read-only by default. Every access is written down.

Read-only links

We read balances and holdings. We cannot initiate a transfer from a data link.

Encryption

In transit and at rest, with keys rotated every 90 days.

Audit

SOC 2 Type II report available on request (demo company).

Access

Every view of your data is logged and visible to your advisor.

Access log · the Avery household · Oct 20, 2026