What is the difference between a stock and a bond?

A stock represents ownership (equity) in a company — your return depends on the company's growth and profitability. A bond is a loan you make to a government or corporation in exchange for fixed interest payments. Stocks offer higher potential returns but more volatility; bonds offer stability and predictable income. Most diversified portfolios hold both asset types.

What does it mean when a stock is trading on margin?

Trading on margin means using borrowed money from your broker to buy more shares than your cash balance allows. If you deposit $5,000 and your broker offers 2:1 margin, you can purchase up to $10,000 in stock. Margin amplifies gains — but equally amplifies losses. If the stock drops, you still owe the borrowed amount regardless of your portfolio's value.

What is a market index and why does it matter?

A market index tracks the combined performance of a selected group of stocks. The S&P 500 tracks 500 large US companies; the Dow Jones tracks 30 industrial giants. Indexes serve as benchmarks — if your portfolio beats the S&P 500 over time, you've outperformed most professional fund managers. Index funds and ETFs let you invest in an entire index with a single purchase.

How are dividends paid and how often?

Dividends are cash payments made by a company to its shareholders, typically on a quarterly schedule (4 times per year). To receive a dividend, you must own the stock before the ex-dividend date. The dividend yield is the annual dividend divided by the stock price — a 3% yield on a $100 stock means $3/year per share. Dividend reinvestment (DRIP) automatically reinvests dividends to buy more shares.

What is a stock portfolio and how diversified should it be?

A portfolio is your complete collection of investments. Diversification means spreading investments across different companies, sectors, and asset types to reduce risk. Research suggests that holding 20–30 individual stocks across different sectors achieves most diversification benefits. A single broad index ETF like VTI (Vanguard Total Market) provides instant diversification across 3,700+ US companies.

Interest Rates Word Search

Find 10 essential interest rate terms hidden in the grid. Click any word to learn its definition with a real-world example.

Word Search 10 Terms Intermediate

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Interest rates are the price of money — and understanding how they flow through the entire economy helps explain why stocks, bonds, real estate, and currencies all respond when the Federal Reserve acts. This puzzle covers the vocabulary of rates: yield curves, duration, the discount rate, and the transmission mechanisms of monetary policy.

The Rate Transmission Mechanism

When the Federal Reserve raises the federal funds rate, the impact cascades through the economy. Bank borrowing costs rise immediately. Mortgage rates follow the 10-year Treasury yield upward. Corporate borrowing becomes more expensive, reducing capital investment. Credit card rates — typically prime rate + a margin — rise within weeks. Higher borrowing costs reduce consumer spending, slow hiring, and compress corporate profit margins. This is how monetary tightening "cools" inflation — by making spending and investment more expensive.

Interest Rates and Asset Prices

All financial assets are priced relative to the risk-free rate — the yield on US Treasury bills. When risk-free rates rise, other assets must offer higher returns to remain attractive — which typically means their prices must fall. This mechanism explains why rising rates hurt: bonds (existing bonds pay less than new issues), stocks (future earnings are worth less when discounted at higher rates), and real estate (mortgage rates make financing expensive). Growth stocks — valued on distant future earnings — are most sensitive to rate changes.

Reading the Yield Curve

The yield curve plots Treasury yields from shortest maturities (1-month bills) to longest (30-year bonds). Normally upward-sloping (longer = higher yield). An inverted yield curve — where short-term yields exceed long-term — has preceded every US recession since 1950. It signals that markets expect the Fed to cut rates in the future (accommodating economic weakness), dragging long-term yields below short-term rates. The 2022–2024 inversion was the deepest in 40 years.

Want to go deeper? Read our full guide: What Is an Interest Rate?

Frequently Asked Questions About Interest Rates & Investing

How do interest rates affect stock prices?

Rising rates hurt stocks through three channels: (1) Higher discount rates reduce the present value of future earnings — growth stocks reliant on distant profits fall the most; (2) Higher borrowing costs reduce corporate profits (more interest expense); (3) Risk-free assets (Treasury bills) become more attractive relative to stocks, reducing demand for equities. The 2022 bear market — S&P 500 down 18% — coincided with the fastest rate-hiking cycle in 40 years, demonstrating these mechanisms in real time.

What is duration risk?

Duration measures a bond's price sensitivity to interest rate changes. A bond with 8-year duration loses approximately 8% of its price for every 1% rise in interest rates. Long-duration bonds (20-30 years) are extremely rate-sensitive. In 2022, the iShares 20+ Year Treasury Bond ETF (TLT) — holding long-duration bonds — fell over 30% as the Fed raised rates. This surprised many investors who considered Treasuries "safe." Safety means no credit risk, not no interest-rate risk.

What is the federal funds rate vs the prime rate?

The federal funds rate is the rate banks charge each other for overnight lending — set by the FOMC. The prime rate is the rate banks charge their most creditworthy customers — typically 3 percentage points above the fed funds rate. When the FOMC raised the fed funds rate to 5.25–5.50% in 2023, the prime rate automatically moved to 8.50%. Many consumer financial products (HELOCs, credit cards, some personal loans) are priced as prime rate plus a margin.

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Vocabulary Definitions

Study these terms before or after solving the puzzle. Each definition includes a real-world US example.

FEDERAL

The Federal Reserve (the Fed) is the central bank of the United States, responsible for setting monetary policy and managing interest rates. The Fed's Federal Open Market Committee (FOMC) meets eight times per year to set the federal funds rate — the benchmark interest rate that influences borrowing costs throughout the entire economy, from mortgages and car loans to corporate bonds and savings account yields.

In 2022–2023, the Federal Reserve raised the federal funds rate from near 0% to over 5% in the fastest rate-hiking cycle since the 1980s. This was done to combat 40-year-high inflation of 9.1%. The result: mortgage rates doubled, the stock market fell 18%, and bond portfolios suffered historic losses.

YIELD

Yield is the income return on an investment, expressed as a percentage of the investment's current price. For bonds, yield is inversely related to price — when bond prices fall, yields rise. The yield curve plots yields across different bond maturities and is one of the most important economic indicators. An inverted yield curve (short-term rates higher than long-term) has historically preceded recessions.

In 2023, the 2-year US Treasury yield rose above 5% while the 10-year Treasury yielded around 4.5% — an inverted yield curve. This inversion, caused by aggressive Fed rate hikes, predicted slow economic growth. Investors favoring safety moved to short-term Treasuries, locking in the highest yields in 15 years.

DURATION

Duration measures how sensitive a bond or bond fund is to changes in interest rates. A bond with a duration of 8 years will lose approximately 8% in value for every 1% rise in interest rates. Conversely, it will gain about 8% for every 1% fall in rates. Long-duration bonds (10+ years) carry the most interest rate risk, while short-duration bonds (under 3 years) are much less volatile.

In 2022, the iShares 20+ Year Treasury Bond ETF (TLT) — which holds long-duration bonds — fell over 30% as the Fed raised rates aggressively. Meanwhile, short-duration Treasury bills gained value and offered positive yields. Duration risk caught many bond investors off guard during this historic rate cycle.

COUPON

A coupon is the fixed annual interest payment made by a bond issuer to bondholders. The coupon rate is set at issuance and is expressed as a percentage of the bond's face value. A $1,000 bond with a 5% coupon pays $50 per year, typically in two $25 semiannual installments. The coupon rate remains fixed regardless of prevailing market interest rates, which is why bond prices fluctuate.

A 10-year US Treasury bond issued in 2020 with a 1% coupon pays $10 per year on a $1,000 face value. When market rates rose to 5% by 2023, this bond's price fell dramatically — why pay $1,000 for a 1% coupon when new bonds offer 5%? The old bond must trade at a discount to be competitive.

INFLATION

Inflation is the rate at which the general price level of goods and services rises, eroding purchasing power. Interest rates and inflation are deeply linked: the Federal Reserve raises rates to fight inflation (making borrowing expensive slows spending) and cuts rates to stimulate a slowing economy. For investors, inflation erodes the real return of fixed-income investments unless their yield exceeds the inflation rate.

US inflation peaked at 9.1% in June 2022 — the highest in 40 years. Investors holding 2% Treasury bonds were earning a real (inflation-adjusted) return of -7.1%. TIPS (Treasury Inflation-Protected Securities) are specifically designed to protect against this by adjusting their principal with inflation.

PRIME

The prime rate is the benchmark interest rate that US commercial banks charge their most creditworthy corporate customers. It is directly tied to the federal funds rate — typically set at 3% above the fed funds rate. The prime rate serves as the baseline for many consumer lending products, including credit cards, home equity lines of credit (HELOCs), and variable-rate loans.

When the Federal Reserve raised the federal funds rate to 5.25–5.50% in 2023, the prime rate automatically moved to 8.50% — the highest in over 20 years. This directly increased borrowing costs for consumers with variable-rate credit cards (many charging 20%+ APR) and home equity loans.

MORTGAGE

A mortgage is a loan used to purchase real estate, secured by the property itself. Mortgage rates are heavily influenced by the 10-year US Treasury yield and Federal Reserve policy. Fixed-rate mortgages lock in a rate for 15 or 30 years; adjustable-rate mortgages (ARMs) reset periodically with market rates. Rising mortgage rates reduce housing affordability and can cool the real estate market significantly.

The average 30-year fixed mortgage rate hit a 20-year high of 7.79% in October 2023. A buyer purchasing a $400,000 home would pay $2,795/month — versus $1,911/month at the 3.1% rates available in late 2021. That $884/month difference ($10,608/year) dramatically reduced purchasing power and slowed home sales nationwide.

DISCOUNT

The discount rate is the interest rate the Federal Reserve charges banks for short-term loans from the Fed's "discount window." It is also used more broadly in finance as the rate applied to future cash flows to calculate their present value. A higher discount rate makes future earnings worth less today — which is why growth stocks (valued on future earnings) fall hardest when rates rise.

When interest rates were near zero (2020–2021), investors paid extremely high valuations for tech stocks because the discount rate made even distant future profits valuable today. When the Fed raised rates to 5%+ in 2022, those same future profits were discounted much more heavily — causing Nasdaq to fall 33% as valuations compressed.

TREASURY

US Treasury securities are debt instruments issued by the federal government to finance its operations. They are backed by the full faith and credit of the US government and are considered the world's safest investment. Treasuries come in short-term (T-Bills, under 1 year), medium-term (T-Notes, 2–10 years), and long-term (T-Bonds, 20–30 years) varieties. Their yields serve as the risk-free rate benchmark for all other investments.

When uncertainty spiked during COVID-19 in March 2020, investors flooded into US Treasury bonds — a classic "flight to safety." The 10-year Treasury yield plunged to 0.54%, the lowest in US history. By contrast, when the economy recovered and rates normalized, those same bonds lost significant value — a reminder that "safe" doesn't mean "no risk."

REAL

The real interest rate is the nominal interest rate adjusted for inflation. It represents the true purchasing power gain (or loss) from an investment. If a savings account pays 5% but inflation is 3%, the real rate is 2% — your purchasing power grows modestly. If inflation exceeds the nominal rate, the real rate is negative — you're actually losing purchasing power even while "earning" interest.

During much of 2021–2022, US savings accounts paid 0.01–0.50% while inflation ran at 7–9%. This meant real interest rates were deeply negative (-7% to -8.5%). Anyone holding cash was effectively losing purchasing power at an alarming rate. TIPS and Series I bonds (which adjust with inflation) were among the few investments offering positive real yields.