When you have stocks, brokers will let you take a margin loan of at least 50% or more of your equity value. This gives you at least 1.5 leverage, at the cost of margin loan interest, which is usually terrible at most brokerages. For example, Schwab will charge you 13% interest as of today (June 2025). If you cannot make more than 13% on the investments you do with leverage, you won't even break even. Interactive Brokers will give you a much better rate, for example 5%. This is an easier number to beat on investment return. It must have been nice during the [ZIRP](https://en.wikipedia.org/wiki/Zero_interest-rate_policy) era, but those days are gone for now.
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### Forex margin loan (carry trade)
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### Forex margin loan
One way to reduce interest charges is using a forex margin loan (sometimes called a carry trade). Your broker may have a much lower interest rate for borrowing in another currency like CHF. Say that is 1.5%. You can take a CHF loan, convert that to USD, and use the funds to invest in US stocks. However, you must now beat both the 1.5% margin interest as well as any forex rate changes. You also have to keep in mind the cost of conversion, which is more favorable to larger sums. For stable currencies like CHF, I've had good results for multi-year timeframes. However, if there is a big drop in USD value to the foreign currency, your loan repayment can be much bigger than you expected. Many people have done this with JPY due to its low interest rate.