Get low interest rate with Box Spreads

Box spread is a strategy used by institutions to borrow directly from the stocks market. SyntheticFi makes it easy.

What is a box spread?

It uses a combination of four options to create a fixed pay off at a future date. Borrowers will receive cash upfront in their brokerage account, and they need to repay it with interest later.

"Market participants have used options box spreads as a financing tool for decades. Indeed, on any given day, a handful of large box spread trades, worth upwards of hundreds of million dollars, are consummated."

CME Group, "Index Options Box Spreads as Financing Tool"

Have questions?
What will happen in my account?

Box spread is not free money. Understand how it works with margin requirements.

Cash balance != margin buying power

Margin buying power decides how much you can trade or withdraw in your account. Cash balance determines how much you pay in margin interest.

Increase cash balance and avoid margin interest

Borrowing a box spread will increase the cash balance and help you avoid margin interest charges. It doesn't affect the margin maintenance requirement.

Withdraw cash with margin buying power

If you have margin buying power, you can withdraw cash from your account up to the buying power limit. If you have cash balance from a box spread, you can withdraw it without paying margin interests.

Learn more about box spreads

At SyntheticFi, a box spread synthetic loan is constructed with a short box spread on S&P 500 Index options.

Not exposed to stock market fluctuations

No early exercise risk: use European-style options

Get the best rate: Interest rate is set through bidding on exchange

Who are using box spreads today?

Sophisticated retail investors are using box spreads to invest and borrow efficiently.

Alpha Architect 1-3 Month Box ETF

With $3 billion AUM, Alpha Architect 1-3 Month Box ETF (BOXX) invests exclusively in synthetic loans constructed from box spreads.

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Long-term investors on Bogleheads

Bogleheads is an investment forum for long-term, HNW individual investors. Read how they use box spreads to invest and borrow.

Learn more

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