1.) S&P 500:
Also known as the Standard and Poor's 500, the S&P 500 is a stock market index tracking the stock performance of 500 leading companies listed on stock exchanges in the United States. This index includes approximately 80% of the total market capitalization of U.S. public companies, with an aggregate market cap of $50 trillion as of March 31, 2025. The S&P 500 is a capitalization-weighted index with the Magnificent Seven composing roughly 30% of the market capitalization of the index. In other words, for every $1.00 an investor plunks into a S&P 500 Index Fund, $.30 is allocated to the likes of Nvidia, Microsoft, Alphabet, Amazon, Apple, Meta, and Tesla. Because it is broad and capital-weighted, the S&P 500 is far and away the most relevant stock index to follow. The Dow Jones Industrial Average only consists of 30 companies, less than 10% of the number of companies in the S&P 500 Index. The S&P 500 is reviewed and potentially adjusted every quarter. Dogs tend to be drop-kicked with up-and-coming new companies taking their places. Around 20-25 stocks are typically replaced on an annual basis.
2.) Debt-to-GDP Ratio:
Debt-to-GDP measures the financial leverage of an economy. The debt-to-GDP ratio is the ratio of a country's accumulation of government debt relative to its gross domestic product (GDP). For example, if the United States owes its creditors $36 trillion and its economy is generating total annual GDP of $30 trillion, the debt-to-GDP ratio would be 120%. A ratio at that level would be considered high, and if it isn't already, should be setting off some alarm bells. Also, with the exception of Japan, a ratio of 120% is higher than any of the other major economies in the world. The U.S. has not seen this level of debt relative to its economic output since the end of World War II. Besides posing a greater risk of default, elevated debt-to-GDP ratios will act as a drag on the growth of our economy.
3.) U.S. Dollar Index (DXY):
If you haven't done so yet, I recommend adding Ticker Symbol "DXY" to your Iphone "watch" list. Referred to as the "Dixie," it is an index of the United States dollar relative to a basket of foreign currencies. The Euro and Japanese yen are weighted at 70% of the total, while the Pound Sterling, Canadian dollar, Swedish Krona, and Swiss franc compose the remaining 30%. This metric was established in 1973, soon after the demise of the gold standard and the Bretton Woods system. The Index goes up when the U.S. dollar gains value compared to the other currencies. The opposite is the case when the dollar loses value. At its start in 1973, the value of the U.S. Dollar Index was 100.00. It has since traded as high as 164.72 in February 1985, and as low as 70.69 on March 16, 2008. The value as of July 11, 2025, was 97.95. The value of the dollar normally correlates with global interest rates. Also, because most commodities are traded in U.S. dollars, a drop in the dollar's value often results in higher commodity prices.
4.) 10-Year U.S. Treasury Yield (TNX):
Bar none, the most important financial metric in the world is the yield on the 10-Year U.S. Treasury note. Media and investors tend to focus on the Fed Funds (overnight) interest rate range that the Federal Reserve Bank can control and modify, but the 10-year rate is the more relevant indicator of economic conditions. It is also a benchmark for various financial products such as mortgages and corporate debt. Higher yields mean higher borrowing costs for consumers and businesses. Additionally, when yields rise, investors may find Treasury securities more attractive than stocks, potentially leading to a decrease in stock prices. Conversely, lower yields can encourage investors to seek higher returns in the stock market. Fluctuations in the 10-year yield can have significant implications for the long-term sustainability of government debt. Higher yields translate to increased interest payments on the national debt.
5.) National Financial Conditions Index (NFCI):
This index is generated by the Chicago Fed on a weekly basis. It provides an update on conditions in money markets, debt and equity markets, and the traditional and "shadow" banking systems. Basically, the level of the NFCI reveals the extent of liquidity in the financial system. Positive values of the NFCI have been historically associated with tighter-than-average financial conditions, while negative values have been historically associated with looser-than-average financial conditions. Levels of liquidity are a vitally important factor when determining risk-asset valuations. Bull markets will constrict and eventually croak when liquidity evaporates.
6.) There are multiple Price Earnings (PE) ratios published for the S&P 500. My personal favorite , which I believe is most indicative and relevant, is the Shiller PE Ratio. This particular Price Earnings ratio is based on the average inflation-adjusted, earnings from the previous 10 years. It is also known as the Cyclically Adjusted PE Ratio (CAPE Ratio). The minimum historical Shiller PE Ratio was 4.78 in December 1920. The maximum would be 44.19 in December 1999. The historical mean is 17.25, with the historical median at 16.04. The Schiller PE is presently at 37.90, which is 40.6% higher than the recent 20-year average of 27. The recent 20-year low is 13.3 and the recent 20-year high is 38.6. The implied future annual return is 2%.
7.) Credit Spreads:
Credit spreads are considered a canary in the coal mine for near-term economic conditions. When used in the context of bond investing, they refer to the difference in yield between corporate bonds and U.S, Treasury bonds with the same maturity. U.S. Treasury bonds are considered virtually risk-free because they are backed by the U.S. government. Corporate bonds, on the other hand, carry the risk of the issuing company defaulting on its debt obligations. To compensate investors for this additional credit risk, corporate bonds generally offer higher yields than Treasury bonds with comparable maturities. This extra yield is the credit spread. Narrower spreads suggest economic optimism and a lower perceived risk of corporate defaults, leading investors to favor corporate bonds for their higher yields, thus tightening the spread. Wider spreads often signal economic weakness and increased risk aversion among investors. This is because in uncertain times, investors seek the safety of Treasury bonds, driving their yields down and widening the spread.
8.) U.S. 10-Year/3- month spread:
This metric refers to the difference between the yields of 10-Year Treasury constant maturity securities and 3-month Treasury bills. A positive spread indicates a normal, upward-sloping yield curve, while a negative spread (when short-term rates exceed long-term rates) suggests an inverted yield curve. An inverted yield curve, particularly when the 10-year/3-month spread turns negative, has historically been a reliable indicator of potential economic recession. As of July 3, 2025, the 10-year./3-month spread was at negative 0.07%. The spread was negative 1.11% a year ago. Look for this spread to widen and be inverted even more as the Fed lowers short-term rates and the bond market does fall in line on the long end.
9.) Consumer Price Index (CPI):
The CPI is a statistical estimate of the level of prices of goods and services bought for consumption purposes by households. In other words, the annual percentage change in the CPI is used as a measure of inflation. The data is released on a monthly basis by an agency of the federal government. Similar to the monthly unemployment data, the CPI information is deeply flawed and biased in favor of making government policymakers look good. The formula has changed over the years and is now riddled with multiple assumptions in lieu of simply using the hard data. I normally look at the published inflation rate and multiply by 1.40. So, if inflation is disclosed at 3.0%, my computations say it is actually closer to 4.20%.
10.) The Buffett Indicator:
Named after legendary investor, Warren Buffett, the Buffett Indicator expresses the value of the U.S. stock market in terms of the U.S. economy. In the formula determining the ratio, the numerator is the total value of the stock market, and the denominator is the Gross Domestic Product. Itemized below are Buffett Indicator ratio ranges and how they are classified:
Ratio Classification
less than 86% - Significantly Undervalued
86% - 111% - Moderately Undervalued
111-135% - Fair Valued
135%-160% - Modestly Overvalued
greater than 160% - Significantly Overvalued
The Buffett Indicator is currently at a staggering 209.5%. This is a historical high, practically off the charts. Gees, what could possibly go wrong?