How to Choose a High-Yield Savings Account for Trading Cash
Cash waiting between trades still has a job to do. Compare savings accounts for it on rate and fees, then check how transfer times line up with settlement and how deposit insurance really applies.
What to compare: savings accounts
- Compare APY across accounts, since it includes compounding APY is the yearly return with compounding built in. Comparing it lets you line up accounts that credit interest daily, monthly or quarterly on equal terms.
- Find out how and when the rate can change Savings rates are usually variable. The bank can cut yours after you open the account, often with little or no notice.
- Check minimum balances, monthly fees and tiered rates A headline rate may apply only above or below a balance tier, and on a small balance a monthly fee can eat all the interest.
- Test transfer speed and limits in both directions Cash that takes days to reach your broker can't fund a trade today. Look for daily and monthly transfer caps and any holds on new deposits.
- Confirm FDIC or NCUA coverage for the actual bank Look the bank up in FDIC BankFind. Credit unions are insured by the NCUA instead, which provides equivalent coverage.
- With an app, name the partner bank that holds the deposits Deposit insurance protects you if an insured bank fails. It won't help if the app company in the middle fails or keeps poor records.
- Weigh it against your brokerage's own cash sweep Sweep programs vary widely in what they pay and how they're protected. Once you know your sweep terms, you can tell whether moving cash is worth the transfer time.
Say you keep 20,000 of trading cash parked for a year. At a hypothetical 0.50% APY it earns 100. At a hypothetical 4.00% APY it earns 800. Same money, same year, and all that changed is where it sat.
That gap is why it pays to shop. Still, the top earner only helps if the money can reach your broker when you need it, sits under deposit insurance you’ve checked yourself, and doesn’t leak away through fees you missed.
Savings rates change often, and any rate quoted today would be stale before you read it, so every figure below is hypothetical and there only to show the arithmetic.
Why keep trading cash outside the brokerage
Some traders keep a reserve away from the trading account on purpose. Money there is harder to spend on an impulse trade, and it can earn more than the broker’s default cash option. It also sits at a bank, under the FDIC’s rules, apart from whatever happens at the broker, which some traders value as a second line of defense for money they couldn’t afford to have tied up during an outage or an account dispute.
The price you pay is time.
When you sell stock, the proceeds settle under the SEC’s T+1 cycle (the settlement date page has the details), and only then can you withdraw them. An ordinary bank transfer back to the broker can take another business day or more, and some brokers hold newly deposited funds before you can trade with them, so money that leaves the trading account on a Monday may not be usable for a trade again until later in the week, and longer across a holiday.
Plan around that lag. Keep enough in the brokerage for the trades you actually expect to make.
APY and APR aren’t the same number
APR is the simple annual rate. APY is what you earn over a year once interest on interest is counted, so for any account that compounds more than once a year the APY comes out higher.
Deposit accounts are normally quoted in APY. Compare APY with APY, and if an account quotes only a rate, ask for the APY.
Rates move
Most high-yield savings accounts pay a variable rate, which the bank can lower whenever it likes. Rates also tend to move after changes in the Federal Reserve’s policy rate. Today’s top payer may not stay on top.
So read the terms, then look at how the account has behaved. How much notice does the bank give? Do new and existing customers get different rates? Is there an introductory rate that drops after a few months?
Whatever you earn also has to be set against rising prices, which is the subject of inflation and your trading returns.
Fees, minimums and tiers
Read the fee schedule. Look for monthly maintenance fees, minimum balances to earn the advertised rate, fees for excess withdrawals and charges for outgoing wires, and check whether the headline rate applies only on a balance band, with a lower rate paid on the rest. A hypothetical monthly fee of 5 is 60 a year. On a 2,000 balance, that’s 3% gone.
Transfer limits matter too. Many banks cap how much you can move out per day or per month, and some limit the number of certain withdrawals from savings, so find those caps in the account agreement before you need to move a large amount on short notice.
Checking deposit insurance properly
The FDIC insures deposits up to 250,000 dollars per depositor, per insured bank, per ownership category. Individual accounts, joint accounts and certain retirement accounts count as separate categories. Credit unions are covered by the NCUA, which provides equivalent coverage for share accounts.
Confirm the bank in FDIC BankFind before you deposit.
Savings apps need one more step. Many are technology companies that place your money at one or more partner banks. If one of those banks fails, deposit insurance covers you, provided the partner bank’s records correctly show the money as yours. The failure of the app company itself isn’t covered. Find the partner bank’s name in the app’s disclosures, look it up in BankFind, and keep your own record of balances.
Compare it with your brokerage sweep
Most brokers put uninvested cash into a sweep. Some sweep to one or more program banks, where the cash can carry FDIC coverage at each bank within the limits. Others sweep to a money market fund, which is a security, carries no FDIC insurance and falls under SIPC’s protection against broker failure. What sweeps pay varies widely between brokers, and even between programs at the same broker.
Your sweep terms are on the broker’s disclosures page. If the sweep pays close to what a savings account would, the transfer lag may not be worth it. If it pays far less, a savings account, or a CD for money you won’t need for a set term, can be worth the extra step.
Red flags
- A rate far above the rest with no clear terms or end date.
- No named FDIC-insured bank in the app’s disclosures.
- A bank that doesn’t appear in BankFind.
- Transfer limits you can’t find in writing.
Also asked
- Can a savings account rate drop after I open it?
- Yes. Most savings accounts pay a variable rate that the bank can change. If you want a rate fixed for a set term, that's what a CD does, and you give up access to get it.
- Is money in a savings app FDIC-insured?
- Only if the app places it at an FDIC-insured bank and the records show it belongs to you. The insurance covers the failure of that bank. The app company failing is a different matter.