The liquidity pyramid: Balancing cash, CDs, and investments

A liquidity pyramid is a cash management strategy that sorts your money into tiers based on how quickly you'd need it, with the most accessible funds forming the widest base. As you move up, liquidity decreases and expected return increases.

It's a variation on the asset allocation pyramid used in investing, but the organizing principle is different. A traditional allocation pyramid sorts holdings by risk. A liquidity pyramid sorts them by time, which is usually the more practical question for anyone balancing investments and savings.

The structure works because it stops the two most common cash mistakes from happening at once. Holding everything in liquid accounts can mean losing purchasing power to inflation, while holding everything in investments could mean having to sell at a bad moment in the event of an emergency.

The base of the pyramid is money you can reach today without penalty, notice, or market timing. This is your emergency fund plus near-term bills.

Most guidance suggests three to six months of essential expenses, though the right figure depends on how predictable your income is. For someone spending $5,000 a month, that would suggest an emergency fund ranging between $15,000 and $30,000. 

Keep in mind that your personal situation will dictate the specifics. Salaried workers with stable employment may feel comfortable sitting at the lower end. Freelancers, commission earners, and business owners generally need more tucked away in savings due to fluctuating pay, and anyone supporting dependents on a single income may want to lean higher still.

Where you hold these short term cash reserves matters more than people expect. The FDIC national average savings rate is 0.38%, while competitive high-yield savings accounts were paying around 4.10% APY* in July 2026. 

The middle tier holds money you'll want within roughly one to five years, at a fixed rate, without exposure to the market. Certificates of deposit can be a natural fit.

This is the tier people often skip, and it's usually the one doing the most work. A CD's rate is locked when you open it, so a house down payment two years out or a tuition bill in eighteen months earns a fixed return and protects your principal, provided you hold it to maturity. Stocks can't promise any sort of fixed return while a savings account's variable rate can change any time.

The trade-off is access. Early withdrawal penalties typically cost between 60 and 365 days of simple interest. No-penalty CDs sit between the tiers, offering a fixed rate with a fee-free early exit at a slightly lower APY.

Integrating a CD laddering strategy for predictable intervals

A CD laddering strategy solves the access problem by staggering maturity dates so money becomes available at regular intervals rather than all at once.

Say Tier 2 holds $40,000. Rather than one 2-year CD, you split it into four $10,000 rungs maturing at 6, 12, 18, and 24 months. Something comes due every six months. As each matures, you either spend it or roll it into a new 24-month CD, and after two years you have a rolling structure with cash arriving twice a year.

Laddering also spreads out your rate risk. You aren't committing everything at one moment, so no single decision determines what the whole tier earns.

The top of the pyramid is money with no near-term claim on it, invested for growth over years or decades. Retirement accounts, brokerage holdings, and index funds live here.

This tier is the smallest by design, not by dollar amount. Over a long career it will likely hold the largest balance, but experts generally suggest it be the last tier funded and the last touched. Its defining feature is that you can afford to ignore it through a downturn, which is only true if the tiers below it are properly sized.

The peak is also where risk belongs. Volatility that would be dangerous in an emergency fund is simply the inherent trade-off over a 20-year horizon. Sorting by time makes that distinction obvious in a way that thinking about risk alone doesn't.

Balancing the pyramid is a sequencing exercise. Fill from the bottom up, then review on a schedule rather than a feeling.

Many savers will focus on funding Tier 1 to its target first. They will then move to Tier 2 once the base is complete, sizing it against goals they can put a date on. Direct surplus beyond that would then typically go to Tier 3. On a $100,000 cash and investment position, a common shape might be $20,000 liquid, $30,000 in CDs, and $50,000 invested. At July 2026 rates, a $50,000 balance across the two cash tiers offers approximately $2,065 in interest over a 12-month period.

Once your pyramid is full, it’s important to review annually, and whenever something structural changes: a new job, a move, a child, a business, a large purchase moving onto the calendar. Between reviews, the maintenance rule is simple: refill Tier 1 first after you draw on it.

The liquidity pyramid isn't a product recommendation. It's a way of asking a better question about each dollar you hold, namely when you'll need it rather than how much it might earn. Answer that first and the account type usually becomes obvious.

Many people find their gap is in Tier 2, where money that's too important to risk sits earning a variable rate that can change without notice. Raisin brings together CDs, no-penalty CDs, high-yield savings accounts, and money market accounts from more than 100 federally insured banks and credit unions, making it easy to build and manage the bottom two tiers through a single login.

The above article is intended to provide generalized financial information designed to educate a broad segment of the public; it does not give personalized tax, investment, legal, or other business and professional advice. Before taking any action, you should always seek the assistance of a professional who knows your particular situation for advice on taxes, your investments, the law, or any other business and professional matters that affect you and/or your business.