Hey
@Parzival1099, thanks for reaching out.
To answer your question, you will need cash available in your account to purchase a Certificate of Deposit (CD). The Fidelity Government Money Market Reserve (SPAXX) is a core position on your account, which works as the “wallet” for your account where uninvested cash is stored.
What is a Core Position?:
https://www.fidelity.com/learning-center/investment-products/mutual-funds/core-position-video
When purchasing CDs traditionally, you’d make an initial investment, then receive an amount of interest after a set time passes, known as the maturity date. CDs are typically sold in increments of $1000 and will have a set yield. For example, a 1-year CD with a 3% yield would pay you $30 if held to maturity. so you’d pay $1000 upfront, then receive $1,030 at maturity.
With that said, we recently started allowing clients to trade fractional CDs where you can purchase slices of a CD in $100 increments, which is likely what you’re referring to as the minimum. Trading fractional CDs works the same way; with maturity dates, interest, etc. However, it allows you to invest smaller amounts for a smaller piece of the yield pie. Using the example above, if you invested $100 into that same CD, you’d receive $3 at maturity.
There is a lot to unpack when explaining CDs, so I recommend checking out the link below to familiarize yourself further with our Fixed Income products and how they work. If you have other questions about anything in particular, feel free to follow up with us here and we’ll be glad to answer!
Learning Center – Fixed Income:
https://www.fidelity.com/learning-center/investment-products/fixed-income-bonds/fixed-income-bonds-cds
Our official subreddit’s 101 article on CDs:
https://www.reddit.com/user/fidelityinvestments/comments/10xctsg/a_101_guide_on_where_to_find_cds_what_terms_mean/
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