A box spread is another way to take a loan, except it is not from your broker, but from the options market. This essentially gives you the best borrowing rate that your broker will never beat, but you will need to trade options which can be quite complicated if you are new to them. [This blog post](https://thefinancebuff.com/short-box-spread-vs-margin-loan-fidelity.html) describes the process. I created [this video](https://www.youtube.com/watch?v=mSmY9HNzeAo) and [slides](https://docs.google.com/presentation/d/1-CDrMKt7snfninR7kycAI7HIv2nGCyVBD-ozjVqwVUc/edit?slide=id.p#slide=id.p) going into the mechanics.
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A box spread is another way to take a loan, except it is not from your broker, but from the options market. This essentially gives you the best borrowing rate that your broker will never beat, but you will need to trade fairly complex options spreads. [This blog post](https://thefinancebuff.com/short-box-spread-vs-margin-loan-fidelity.html) describes the process. I created [this video](https://www.youtube.com/watch?v=mSmY9HNzeAo) and [slides](https://docs.google.com/presentation/d/1-CDrMKt7snfninR7kycAI7HIv2nGCyVBD-ozjVqwVUc/edit?slide=id.p#slide=id.p) going into the mechanics.
[Boxtrades](https://www.boxtrades.com/) is a good site for figuring out the trade to enter. You can even combine this with a forex carry trade to take the loan in another currency with lower interest rate, but you will need to be able to trade options in non-US markets (e.g. SMI index on Swiss exchange).
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There are even some fintech companies such as [SyntheticFi](https://www.syntheticfi.com/) offering to do these loans for you.
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There are some fintech companies such as [SyntheticFi](https://www.syntheticfi.com/) offering to do these loans for you.