Financial markets don't move in a straight line. They breathe in and out through continuous cycles driven by economic data, corporate earnings, central bank policies, and human psychology. Understanding these cycles is the foundation of macro investing.
Every full cycle consists of four distinct phases:
The economy begins to grow again after a recession. Interest rates are usually low, corporate profits start beating expectations, and consumer confidence rises. This is often the longest phase of the cycle.
Investor Psychology: Skepticism turning into optimism.
Growth slows as the economy hits full capacity. Inflation often rises, prompting central banks to raise interest rates to cool things down. Valuations stretch to historical extremes.
Investor Psychology: Euphoria and FOMO (Fear Of Missing Out). "This time is different."
Economic activity declines. Corporate profits fall, unemployment rises, and credit becomes harder to get. Stock prices drop as earnings estimates are revised downward.
Investor Psychology: Denial turning into fear and panic.
The point of maximum economic pain, but also maximum financial opportunity. Central banks typically slash interest rates to stimulate growth. Stock prices often bottom out months before the economic data improves.
Investor Psychology: Capitulation and despair.
Professional investors don't guess; they look at data. Here are four of the most reliable indicators for tracking the business cycle:
The yield curve plots the interest rates of US Treasury bonds of different maturities. Normally, long-term bonds yield more than short-term bonds (upward sloping). When short-term rates rise above long-term rates, the curve is inverted.
An inverted yield curve is famously known as the best leading indicator of a recession, having predicted almost every US recession since 1955.
PMI surveys manufacturing and services companies about new orders, inventory, and employment. A reading above 50 indicates expansion; below 50 indicates contraction. The direction of the PMI is often more important than the absolute number.
Unemployment is a lagging indicator—it usually stays low while the economy peaks and only spikes after a recession has begun. The Sahm Rule suggests a recession is underway when the 3-month moving average of the unemployment rate rises by 0.5% or more relative to its low during the previous 12 months.
This is the difference in yield between safe government bonds and risky corporate "junk" bonds. When times are good, spreads are tight (investors aren't demanding much extra yield for taking risks). When fear enters the market, spreads "blow out" as investors demand much higher returns for lending to risky companies.
Different sectors of the stock market consistently outperform in different phases of the cycle. This framework is known as sector rotation.
| Phase | Characteristics | Outperforming Sectors | Underperforming Sectors |
|---|---|---|---|
| Expansion | Accelerating growth, low/neutral rates | Technology Consumer Discretionary Industrials | Utilities Consumer Staples |
| Peak | Slowing growth, rising rates, inflation | Energy Materials Healthcare | Technology Consumer Discretionary |
| Contraction | Declining growth, falling rates | Consumer Staples Utilities Healthcare | Financials Industrials Real Estate |
| Trough | Negative growth, deeply cut rates | Financials Real Estate Consumer Discretionary | Energy Materials |
Warren Buffett has described the ratio of Total Stock Market Capitalization to Gross Domestic Product (GDP) as "probably the best single measure of where valuations stand at any given moment."
Note: Due to structural changes in the economy, modern averages tend to run higher than historical averages, but relative peaks and troughs remain highly predictive of 10-year forward returns.
Phase: Peak into Contraction
Unprecedented euphoria in tech stocks pushed the Buffett Indicator to extreme highs. The Fed raised rates to cool inflation. When the bubble burst, massive capital rotated out of Tech into "old economy" value stocks and bonds.
Phase: Deep Contraction into Trough
A credit crisis triggered a severe global recession. Credit spreads blew out to historic levels. The trough arrived in March 2009, months before the unemployment rate finally peaked at 10% in October.
Phase: Accelerated Cycle
An exogenous shock caused the fastest bear market in history. Massive fiscal and monetary intervention resulted in a V-shaped recovery, instantly thrusting the market from Contraction back into a hyper-Expansion phase.
Phase: Peak to Contraction
Runaway inflation forced the steepest interest rate hikes in decades. The yield curve inverted deeply. Long-duration assets (tech, crypto, bonds) suffered severe drawdowns, while Energy heavily outperformed.
Input current macro conditions to estimate the current market phase and view optimal sector positioning.
Market data sourced from S&P Global, Federal Reserve Economic Data (FRED), and historical datasets maintained by academic researchers. Returns include both price appreciation and reinvested dividends unless otherwise noted.
Westmount Fundamentals. "Understanding Market Cycles: When to Be Greedy and When to Be Fearful." westmountfundamentals.com/guide-market-cycles, 2026.