A number that many watch has just flipped. The gap between what stocks yield and what government bonds yield, once wide, has narrowed toward zero: for the first time in a quarter-century, holding stocks barely pays for the extra risk over government debt. It is a classic alarm signal. Yet money keeps pouring into stocks at a record pace. This sheet describes the paradox, explains what the risk premium is, then keeps to honesty: the signal itself is a contested indicator.
1 The signal
The fact: the bond catches up with the stock.
The fact
The risk premium has vanished
For the first time since the dot-com bust, US government bonds yield almost as much as stocks. The S&P 500's "earnings yield" (earnings relative to price) is around 4.6%; the 10-year Treasury yield, around 4.5%. The gap between the two, which measures the extra reward expected for equity risk, has fallen below 0.2 points. On some measures it is even negative. This is a classic overvaluation alarm: the market barely pays for risk anymore.
2 The risk premium
The definition: the price of risk.
The definition
The reward demanded for risk
The "equity risk premium" is the extra return an investor demands for holding stocks rather than government debt deemed "risk-free." A stock can fall, a company can disappoint, a dividend can be cut: to accept that uncertainty, one asks for more than a bond's guaranteed yield. Historically, that premium has run around 3 to 5 points. It is what justifies, in theory, taking the risk: without a surplus, why take it? When the premium melts, the question becomes concrete.
3 The flashing gauge
The number: the lowest since 2000.
The number
A gap at its lowest in a quarter-century
The simplest way to estimate the premium is to subtract the bond yield from the stock's earnings yield. The result, now under 0.2 points, is the lowest since the dot-com bubble. In other words, the margin of safety that separated the stock from the bond has all but disappeared. It is not that stocks yield less than before: it is that bonds, after fifteen years of very low rates, once again yield a great deal. The reference point has switched sides.
S&P 500 earnings yield
≈ 4.6%
expected earnings relative to the index price.
US 10-year yield
≈ 4.5%
the government debt deemed risk-free: the gap falls below 0.2 points.
4 TINA becomes TARA
The shift: the bond becomes an alternative again.
The shift
From "no alternative" to "reasonable alternatives"
For fifteen years, one phrase summed up the market: TINA, "There Is No Alternative" to stocks. Bonds yielded next to nothing; equities were the only way to hope for a return. That era is over. Strategists now speak of TARA, "There Are Reasonable Alternatives." A Treasury note paying 4.5% guaranteed becomes a serious rival to the stock. The reasoning that mechanically pushed toward equities no longer holds on its own.
5 And yet, they fund it
The paradox: flows break records.
The paradox
Never so exposed to stocks
You might expect investors, seeing the premium vanish, to trim their stocks. The opposite is happening. The share of stocks in US households' financial assets is at an all-time high, around 47%, against barely 9% at the 2008 low. Exchange-traded funds have drawn in nearly $1.2 trillion since January, at a pace some 45% above the previous record. Retail volumes have doubled from two years ago. The signal is flashing; the money keeps flowing.
Flows into exchange-traded funds
≈ $1.2tn
since January 2026; about 45% above the previous record pace.
Stock share (US households)
≈ 47%
of financial assets: a record, tripled since 2008.
6 The autopilot
First explanation: a demand that does not listen.
The mechanics
Some of the money buys without checking the price
Part of these flows simply does not listen to the signal. Every month, retirement contributions are invested in stocks through automatic deposits, whatever the valuation. Index funds buy the entire index, without judging whether a stock is expensive. This "price-insensitive" demand does not ask about the risk premium: it buys because it is programmed to buy. The market's autopilot keeps feeding the rise, regardless of the flashing light.
Read alongside
This "autopilot" is at the heart of a companion analysis:
The index is no longer a safe haven, where passive investing buys the largest stocks without ever judging their price.
7 The reassuring bias
Second explanation: the recent past serves as a compass.
The psychology
Fifteen years of winning stocks
The other engine is behavioral. Since the 2008 crisis, stocks have broadly beaten bonds, year after year. The brain extrapolates: what has risen will keep rising. This is recency bias, reinforced by the fear of missing out (the famous FOMO) and by price momentum that feeds on itself. Faced with an abstract statistical signal, the lived experience of fifteen years of gains weighs more heavily. Investors fund the signal because, so far, ignoring it has paid.
8 Is the alarm reliable?
Honesty: the signal is a contested indicator.
The key nuance
Comparing two things that do not quite compare
Here one must resist catastrophism. The direct comparison between earnings yield and bond yield, sometimes called the "Fed model," is theoretically contested. The financier Cliff Asness showed its flaw: it compares a real quantity (a company's earnings, which grow with inflation) to a nominal one (a bond's fixed coupon). Above all, corporate earnings rise over time, while a bond's coupon does not. The earnings yield therefore understates the real expected return of stocks. This is the core of the "rational" defense: over the long run, profit growth fills part of the gap.
9 What it does not say
The right measure: a zero premium does not predict a crash.
The right measure
An expensive market can stay expensive for years
A zero, or even negative, risk premium does not announce an imminent collapse. History shows it: an expensive market can stay that way for years, especially when earnings genuinely grow. What the signal says, more modestly, is that the margin of safety has thinned and that expected stock returns, for the years ahead, are statistically lower than after a period of generous premium. The signal is not a prediction of timing: it is a measure of the cushion you have if the wind turns. Less cushion, not more certainty.
10 The cash paradox
The telling detail: fear and greed, at the same time.
The telling detail
Record exposure AND record caution
One last figure lights up the mood of the moment. At the very time equity exposure hits a record, US households' cash is also climbing, to around 8% of their financial assets, the highest level in thirty years. The same investors are therefore both heavily exposed and highly cautious: they want to share in the rise without giving up a safety cushion. Greed and fear live side by side in the same portfolio. It may be the truest mark of a market that sees the signal but chooses to stay in the game.
11 Funding a flashing signal
The close: a bet, more than a folly.
The meaning of the paradox
The bet that "this time growth will pay"
Funding an alarm signal you can see flashing is neither pure folly nor pure calculation. It is a bet, at once structural and behavioral: structural, because part of the demand buys without checking the price; behavioral, because fifteen years of gains have taught people to trust the rise. The implicit bet is that profit growth will fill the gap, that the high price paid today will be justified tomorrow. That bet may prove right. But it rests on a thinner margin of safety than ever: the real question is not "will the market fall?", it is "what is left to cushion the blow if the wind turns?"
The compass
①
The premium has vanished. For the first time since the dot-com bust, stocks barely reward risk over bonds: a gap under 0.2 points, against 3 to 5 points on average.
②
They fund it anyway. Record equity allocation, record flows: demand is partly price-insensitive (autopilot) and guided by recency.
③
The signal has limits. The indicator is contested and a zero premium does not predict a crash: it thins the margin of safety. This sheet sets out a debate; it is not advice.
Read alongside: The 'sidelined' cash that waits for nothing and The index is no longer a safe haven. Reference: abbreviations & acronyms (ERP, TINA, S&P 500).