THE BASICS, WITHOUT THE JARGON

What is an investment‑backed card?

A card whose credit limit is secured by money you hold in an investment account. The account is the collateral, so the limit can rise or fall with its value.

Ask Lucky a question Explore the guide ↓

Three ways to secure a credit limit

Different collateral. Different risks.

Secured card

How the limit is set: A cash deposit generally sets the credit limit.
What can go wrong: Missed payments can damage credit, and the deposit may be used to cover unpaid debt.
Who it may suit: Someone building a credit history who can set aside cash.

Securities-backed line of credit

How the limit is set: A share of eligible assets in a brokerage account, often with large minimums.
What can go wrong: A fall in collateral value can trigger a demand for more collateral or a sale of assets.
Who it may suit: Someone with substantial investments and another way to repay borrowing.

Investment-backed card idea

How the limit is set: A card limit illustrated as a share of a smaller invested balance.
What can go wrong: Investments can lose value. The limit can shrink while the debt remains due.
Who it may suit: In concept, someone able to manage investment risk alongside borrowing.

Read the secured card vs investment-backed card guide →

CALCULATOR

How a portfolio-backed limit is worked out

Portfolio value × share = illustrated limit.

Choose a portfolio value and type the share used as collateral for the limit. Then see what a market fall would do if that share stayed the same.

The 40%, 45% and 50% buttons are examples from the VestLimit design. They are not lending terms or recommendations. Actual rules could treat different assets differently.

Values are in US dollars. Calculator inputs are saved in this browser when local storage is available.

UNDERSTAND THE TRADE-OFFS

The risks behind the limit

Investments can lose value. Collateral is exposed to market changes.
The limit can shrink. A lower limit does not erase money already borrowed.
More money may be needed. You may have to add money or collateral, repay borrowing, or have assets sold, depending on the agreement.
Use of credit is restricted. Regulation U restricts using securities-backed credit to buy securities; specifically, it limits certain credit secured by margin stock used to buy or carry margin stock. A credit agreement may impose further restrictions.

Read the Investor.gov securities-backed credit alert and the Federal Reserve’s Regulation U guide.

Start with investing basics at Investor.gov or credit card information from the CFPB.

COMMON QUESTIONS

A few things to clear up

Is an investment-backed card the same as a secured card?

Both use collateral. A traditional secured card uses a cash deposit. The investment-backed card idea uses investments whose value can change, so its limit can change too.

Does the illustrated limit mean I can borrow that amount?

No. The calculator only multiplies numbers you choose. It does not check eligibility, asset types, existing borrowing or any lender’s rules.

What happens if the investments fall in value?

The credit limit can shrink while an outstanding balance remains due. Depending on the agreement, you may have to add money or collateral, repay borrowing, or have assets sold.

Can I get a card here?

No card, credit, account or investment is offered today. This is an educational guide. You can ask Lucky a question about the idea.

A QUESTION, IN YOUR OWN WORDS

Ask Lucky a question

Lucky Ranasinghe will reply by email. Do not send card numbers or account details.

Prefer email? lucky@maditech.group

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