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Strange things that happen in crises

On April 20, 2020 a barrel of US oil closed at −$36.98: sellers paid buyers to take it away. In the week to April 4, 2020 6,137,000 Americans filed new jobless claims, 8.83 times the worst week of any earlier crisis, and in April 2020 households saved 31.8% of their income. Crises push numbers to places that look like typos. Here are the oddest ones in the data — and how far each one was from normal.

Updated with Nov 2026 data11 min read

WTI oil, April 20, 2020
−$36.98

a barrel; the trading day before it cost $18.31

Jobless claims in one week
6.14M

week to April 4, 2020; ×8.83 the record before 2020

Saving rate in April 2020
31.8%

of income after taxes; the median month since 1959: 8.2%

Used car prices in a year
+45.2%

in the 12 months to June 2021; all consumer prices at their fastest: +9.0%

Money stock (M2) in a year
+26.8%

to February 2021, the fastest since 1959; then it shrank for 15 months in a row

The weirdness meter

How odd is odd? Each card is one oddity: the biggest move a series made in a crisis, at its own pace — a trading day, a week, a month or a quarter — set against the average move of the same series in all the years before that crisis. A card at ×1 would be an ordinary day at the office; each notch on the gauge is ten times more.

The champion is the Jobless claims card: ×249 the average week, or 170σ. Even the calmest card, Productivity, moved ×6.1 its usual pace. 9 of the 12 moves are so far out that, if economic data followed a bell curve, not one of them would be expected in the age of the universe. They do not follow bell curves — which is rather the point of this article.

×: the crisis move against the average move before it (log scale)
×1×10×100×1,000
1Jobless claims
week to March 28, 2020
+3.03M

new claims, change in one week2.91M → 5.95M

record rise (data from 1967)

×249 the average week170σ

2Oil (WTI)
April 20, 2020
−$55.29

one trading day, dollars a barrel$18.31 → −$36.98

record fall (data from 1986)

×73.5 the average day46σ

3Unemployment rate
Apr 2020
+10.4 pp

one month, percentage points4.4% → 14.8%

record rise (data from 1948)

×71.6 the average month50σ

4Saving rate
Apr 2020
+19.4 pp

one month, share of income after taxes12.4% → 31.8%

record rise (data from 1959)

×43.7 the average month27σ

5Gold
Jan 1980
+48.4%

one month, monthly average price$455 → $675

record rise (data from 1968)

×12.2 the average month8.4σ

6Airfares
Apr 2022
+17.9%

one month, consumer price index245.3 → 289.2

record rise (data from 1989)

×11.8 the average month8.8σ

7Money stock (M2)
Apr 2020
+6.4%

one month$16T → $17.1T

record rise (data from 1959)

×11.5 the average month17σ

8Used cars
Jun 2021
+8.9%

one month, consumer price index178.9 → 194.8

record rise (data from 1953)

×9.85 the average month6.9σ

9Real GDP
Q2 2020
−7.9%

one quarter, 2017 dollars$20.7T → $19.1T

record fall (data from 1947)

×7.92 the average quarter9.3σ

10S&P 500
Oct 2008
−20.4%

one month, monthly average1,217 → 969

biggest fall since April 1932

×7.1 the average month5.1σ

11Eggs
Apr 2020
+32.4%

one month, a dozen, average US price$1.52 → $2.02

record rise (data from 1980)

×6.5 the average month4.9σ

12Productivity
Q2 2020
+4.9%

output per hour, one quarter104.7 → 109.8

record rise (data from 1947)

×6.1 the average quarter4.9σ

Cards ranked by ×. σ: standard deviations of the moves before the crisis. Lines: the series around its odd moment, the red dot marks it. Claims: U.S. Department of Labor, retrieved from FRED, Federal Reserve Bank of St. Louis Oil: U.S. Energy Information Administration, retrieved from FRED, Federal Reserve Bank of St. Louis Jobs and prices: U.S. Bureau of Labor Statistics, retrieved from FRED, Federal Reserve Bank of St. Louis Saving and GDP: U.S. Bureau of Economic Analysis, retrieved from FRED, Federal Reserve Bank of St. Louis M2: Board of Governors of the Federal Reserve System, retrieved from FRED, Federal Reserve Bank of St. Louis Gold: World Bank (Pink Sheet), CC BY 4.0 S&P 500: Robert J. Shiller, Yale University
The meter as a table
OddityWhenMove× the average moveσMoves before it
Jobless claimsnew claims, change in one weekweek to March 28, 2020+3.03M×249170σ2,764since January 7, 1967
Oil (WTI)one trading day, dollars a barrelApril 20, 2020−$55.29×73.546σ7,825since January 2, 1986
Unemployment rateone month, percentage pointsApr 2020+10.4 pp×71.650σ863since Jan 1948
Saving rateone month, share of income after taxesApr 2020+19.4 pp×43.727σ731since Jan 1959
Goldone month, monthly average priceJan 1980+48.4%×12.28.4σ128since Apr 1968
Airfaresone month, consumer price indexApr 2022+17.9%×11.88.8σ371since Jan 1989
Money stock (M2)one monthApr 2020+6.4%×11.517σ731since Jan 1959
Used carsone month, consumer price indexJun 2021+8.9%×9.856.9σ803since Jan 1953
Real GDPone quarter, 2017 dollarsQ2 2020−7.9%×7.929.3σ291since Q1 1947
S&P 500one month, monthly averageOct 2008−20.4%×7.15.1σ1,643since Jan 1871
Eggsone month, a dozen, average US priceApr 2020+32.4%×6.54.9σ479since Jan 1980
Productivityoutput per hour, one quarterQ2 2020+4.9%×6.14.9σ291since Q1 1947

For statisticians: a bell curve calls a move of 10σ or more practically impossible. 2020 alone produced 5 on this page.

Oil below zero

On April 20, 2020 the price of a barrel of West Texas Intermediate, the US benchmark crude, closed at −$36.98. The minus sign is not a typo: sellers paid buyers to take their oil. It is the only close below zero since the data begin in 1986. The trading day before, the barrel cost $18.31 — a fall of $55.29 in one session, the biggest one-day fall on record. The next day it was back at $8.91: $45.89 higher, the biggest one-day rise on record, too.

Why? The pandemic had emptied roads and skies, and the storage tanks in Cushing, Oklahoma, where WTI is delivered, were filling up. The spot price follows the nearest futures contract, and the May contract expired the next day: whoever still held one would have to take real barrels with nowhere to put them. Paying someone to take them was the cheaper option. On January 6, 2020 the same barrel had cost $63.27.

Price above zeroBelow zero
WTI spot price, Cushing, Oklahoma: daily closes in US dollars a barrel, trading days only. Oil: U.S. Energy Information Administration, retrieved from FRED, Federal Reserve Bank of St. Louis

2008: $145.31 to $30.28 in 173 days

The other oil oddity ran the other way. On July 3, 2008 WTI closed at $145.31 a barrel. That is still the highest close on record. By December 23, 2008, after the failure of Lehman Brothers had turned a housing bust into a global panic, it was $30.28: −79% in 173 days. The world had not stopped needing oil; the price had simply gone from pricing a shortage to pricing a slump.

WTI spot price: daily closes in US dollars a barrel, trading days only. Oil: U.S. Energy Information Administration, retrieved from FRED, Federal Reserve Bank of St. Louis

The week the seismograph broke

Every Thursday the Labor Department counts new claims for unemployment insurance — the fastest gauge of layoffs America has. In 2019 a week brought 218K on average. The worst week of any crisis before 2020 came in October 1982: 695,000. Then the week to March 28, 2020 came in 3.03M higher than the week before, and the week to April 4, 2020 brought 6,137,000 — 8.83 times the old record.

Claims stayed above the old record for 51 weeks, the last of them the week to March 13, 2021; in those weeks Americans filed 76.1M first claims. On a chart drawn to fit every earlier crisis, 2020 does not fit at all: the needle leaves the paper. The close-up shows those weeks on a scale of their own.

Recession (NBER)Record before 2020
New claims for unemployment insurance, seasonally adjusted, weekly since 1967. The main panel is cut at 900K: weeks above it run off the scale and are shown in full in the close-up. Claims: U.S. Department of Labor, retrieved from FRED, Federal Reserve Bank of St. Louis Recessions: NBER

The unemployment rate made the same leap in monthly steps: from 3.5% in February 2020 to 14.8% in April 2020, 10.4 pp in a single month. The biggest one-month rise before that was 1.3 pp, in October 1949. The number of unemployed grew 4.01 times, from 5.75M to 23.1M. No month since the data begin in 1948 saw a higher rate.

Median time out of work, Jun 201025.2 weeksthe longest since the data begin in 1967
Median time out of work, Apr 20202.2 weeksthe shortest on record — in the month unemployment peaked

The strangest twist is in how long people had been out of work. In June 2010 the typical unemployed American had been looking for 25.2 weeks, the longest since the series began in 1967. In April 2020, the month unemployment hit 14.8%, the typical wait was just 2.2 weeks, the shortest on record. Not because jobs were easy to find: almost everyone counted had lost a job in the previous few weeks.

Everyone saved at once

The personal saving rate is the part of income after taxes that households do not spend. Since 1959 the median month saw 8.2%, and the highest before 2020 was 17.3%, in May 1975. In April 2020 it was 31.8%: 3.88 times the median month. Nobody had suddenly turned thrifty. Shops, restaurants and travel closed while incomes held up, propped up by stimulus payments and extra unemployment benefits.

It happened twice: in March 2021, as another round of stimulus checks arrived, the rate jumped to 26.2%. The lowest month of the whole series, by contrast, came near the top of the housing boom: 1.4% in July 2005.

Personal saving as a share of disposable personal income, monthly, seasonally adjusted annual rate. Saving and GDP: U.S. Bureau of Economic Analysis, retrieved from FRED, Federal Reserve Bank of St. Louis

2020, month by month

The strange things came in a sequence. Read the rows from top to bottom on one shared time axis: claims peaked in the week to April 4, 2020, unemployment in April 2020, the saving rate in April 2020; stocks bottomed in March 2020 (−19% from February 2020, monthly average), and oil went below zero on April 20, 2020.

Then the money arrived and prices went strange. M2 peaked 41% above its Feb 2020 level in March 2022; in February 2022 used cars cost 54% more than in February 2020, after airfares had bottomed at −31% in May 2020. Eggs, hit by bird flu, peaked at $4.82 in January 2023.

Recession (NBER)Level in Feb 2020Crisis extreme
Each row has its own scale. M2, the S&P 500 (monthly average), used cars and airfares: change from Feb 2020. Claims weekly, oil daily, the rest monthly. Claims: U.S. Department of Labor, retrieved from FRED, Federal Reserve Bank of St. Louis Jobs and prices: U.S. Bureau of Labor Statistics, retrieved from FRED, Federal Reserve Bank of St. Louis Saving and GDP: U.S. Bureau of Economic Analysis, retrieved from FRED, Federal Reserve Bank of St. Louis M2: Board of Governors of the Federal Reserve System, retrieved from FRED, Federal Reserve Bank of St. Louis Oil: U.S. Energy Information Administration, retrieved from FRED, Federal Reserve Bank of St. Louis S&P 500: Robert J. Shiller, Yale University Recessions: NBER
The rows as a table
SeriesFeb 2020Crisis extremeJun 2023
Jobless claims215K6.14Mweek to April 4, 2020236Kweek to June 24, 2023
Unemployment rate3.5%14.8%Apr 20203.6%Jun 2023
Saving rate7.5%31.8%Apr 20206.3%Jun 2023
Money stock (M2)base month+41%Mar 2022+34%Jun 2023
S&P 500base month−19%Mar 2020+33%Jun 2023
Oil (WTI)$44.83−$36.98April 20, 2020$70.66June 30, 2023
Used carsbase month+54%Feb 2022+41%Jun 2023
Airfaresbase month−31%May 2020−2%Jun 2023
Eggs, a dozen$1.45$4.82Jan 2023$2.22Jun 2023

Output fell, productivity jumped

One more oddity hides in the quarterly numbers. In Q2 2020 real GDP fell 7.9%, the biggest quarterly change since the data begin in 1947. In the same quarter output per hour of work rose 4.9%, also the biggest since 1947. Both can be true only if hours worked fell even faster than output — and they did. The usual explanation: the jobs lost first were, on average, the lower-paid, less productive ones.

Used cars, airfares and eggs

In the twelve months to June 2021 used car prices rose 45.2%, the fastest since the index began in 1953; the median year since 1953 added 1.5%. From February 2020 to February 2022 they rose 54.3%, while consumer prices as a whole rose 9.7%. A used car is supposed to lose value every year; stories of people selling a car for more than they had paid were common. The usual explanation: a shortage of computer chips held back the production of new cars, and buyers turned to used ones.

Airfares did the opposite, then overshot: down 30.9% from February 2020 to May 2020, then up 74.0% from that low to June 2022 — 20.2% above where they had started. In the twelve months to October 2022 fares rose 43.0%, the most since the index began in 1989.

Used carsAirfaresAll consumer prices
Consumer price indexes, seasonally adjusted, Feb 2020 = 100. Jobs and prices: U.S. Bureau of Labor Statistics, retrieved from FRED, Federal Reserve Bank of St. Louis

Eggs: two panics, one of them about hens

Eggs made the meter twice over. In April 2020, as shoppers stocked up for lockdown, the average price of a dozen jumped from $1.52 to $2.02: +32.4% in one month, the biggest monthly rise since the series began in 1980. The all-time record came later and from a different crisis — bird flu, which forced farms to cull their flocks: $6.23 a dozen in March 2025, 4.46 times the 2019 average of $1.40. Even after inflation, no month since 1980 was dearer.

BLS on its average prices: Average price paid in US cities, from the CPI survey; BLS publishes these to show price levels, but warns they are less precise than the CPI itself and some months are missing. Months without a published value are left out (2025-10).

The money stock: a jump, then a shrink

M2 counts the money Americans hold in cash, checking and savings accounts and similar deposits. In April 2020 alone it grew 6.4%, the most in any month since the data begin in 1959. In the twelve months to February 2021 it grew 26.8%; the fastest year before 2020 had been 13.8%, in the twelve months to February 1976. The jump is not an accounting trick: the Federal Reserve changed the definition of M1 in May 2020, but M2 already included the deposits that were moved.

Then came something the data had never shown: the money stock shrank. For 15 months in a row, from December 2022 to February 2024, M2 was smaller than a year earlier, by as much as 4.7% (Apr 2023), as the Fed raised rates and shrank its balance sheet.

M2, seasonally adjusted: change on the same month a year earlier. M2: Board of Governors of the Federal Reserve System, retrieved from FRED, Federal Reserve Bank of St. Louis

Gold in panics: a safe haven, except when it is not

Since April 1968, when gold began to trade at a market price, the S&P 500's monthly average has fallen 15% or more from a high 8 times. Over the same months gold rose in 5 of those panics and fell in 3. The best showing was 1973–74: stocks −43%, gold +182%. The worst was 1980–82: stocks −19%, gold −46%.

And in the sharpest months of a panic, gold has often slipped too. In 2 of the 3 worst months for stocks since 1968 it fell: Oct 2008: stocks −20.4%, gold −2.8%; Mar 2020: stocks −19.1%, gold −0.3%; Nov 1987: stocks −12.6%, gold +0.5%. The usual explanation: when everything is being sold to raise cash, gold gets sold as well.

S&P 500, high to lowGold, same months
Each pair: the S&P 500's fall from its high to its low (monthly averages) and the change in gold's monthly average price over the same months. S&P 500: Robert J. Shiller, Yale University Gold: World Bank (Pink Sheet), CC BY 4.0
The panics as a table
PanicS&P 500Gold
1968–70Dec 1968 – Jun 1970−29.0%−13.8%
1973–74Jan 1973 – Dec 1974−43.4%+182.1%
1980–82Nov 1980 – Jul 1982−19.4%−45.7%
1987Aug 1987 – Dec 1987−26.8%+5.4%
2000–03Aug 2000 – Feb 2003−43.7%+30.8%
2007–09Oct 2007 – Mar 2009−50.8%+22.5%
2020Jan 2020 – Mar 2020−19.1%+2.0%
2021–22Dec 2021 – Oct 2022−20.3%−7.0%

Homes fell everywhere at once

In the 53 years of monthly data before July 2006, US home prices as a whole barely ever fell: the deepest fall was −3.1% (1990–91). The common belief was that prices could drop in one city, never across the country. Then, from July 2006 to February 2012, Shiller's national index fell 27.4%. His yearly figures, which go back to 1890, show a deeper fall only once: −30.5% in 1925–1933, the Great Depression. Prices were back at their 2006 peak only in January 2017, 10.5 years later.

US home prices, how far below the previous peak, monthly, as quoted (not adjusted for inflation). Home prices: Robert J. Shiller

The rescue was strange too. From December 4, 2008 to December 16, 2015 the federal funds rate — what banks charge each other overnight — stayed at 0.25% or less: 7.0 years of nearly free money. It went back there from March 16, 2020 to March 16, 2022, another 2.0 years.

Stocks marked the panic in their own way: in October 2008 the S&P 500's monthly average fell 20.4%, the biggest fall since April 1932.

The famous ones we cannot measure

Some of the best-known crisis oddities have no reliable data series, so they get no numbers here — only a label saying what kind of claim each one is.

AnecdoteToilet paperShelves emptied in the spring of 2020 as households bought weeks of supply at once. Hoarding a thing that does not run out is a crisis classic: the saving-rate spike, in paper.
HypothesisThe lipstick effectThe idea, credited to Estée Lauder's Leonard Lauder, that small treats sell better in hard times while big purchases wait. Studies disagree; treat it as a hypothesis, not a law.
AnecdoteThe men's underwear indexAlan Greenspan is said to have watched sales of men's underwear, which men stop replacing when money is tight. Charming, widely quoted and unproven.

Questions people ask

Why did oil prices go negative?

Because the holders of the contracts for May delivery had nowhere to put the oil. Demand had collapsed in the pandemic, storage at Cushing, Oklahoma, was nearly full, and the May WTI contract expired the next day. On April 20, 2020 WTI closed at −$36.98, after $18.31 the trading day before. It is the only close below zero since the data begin in 1986.

What was the highest number of weekly jobless claims ever?

6,137,000, in the week to April 4, 2020 (seasonally adjusted). The highest before 2020 was 695,000, in the week to October 2, 1982. The weekly data begin in 1967.

Why did the saving rate spike in 2020?

Saving is income minus spending. In April 2020 spending collapsed as shops, travel and restaurants shut, while government payments kept incomes up, so the share saved jumped to 31.8% from 7.5% in February 2020. It fell back as spending resumed; in March 2021 another round of stimulus checks pushed it to 26.2%.

Does gold go up when stocks crash?

Often, not always. In 5 of 8 falls of the S&P 500 of 15% or more since 1968, gold rose over the same months; in 3 it fell. In the sharpest months it tended to slip with stocks: Oct 2008: stocks −20.4%, gold −2.8%; Mar 2020: stocks −19.1%, gold −0.3%; Nov 1987: stocks −12.6%, gold +0.5%.

Why did used car prices go up so much?

New cars were scarce — the usual explanation is a shortage of computer chips — and buyers turned to used ones. Used car prices rose 45.2% in the twelve months to June 2021, against a median of 1.5% a year since 1953.

Go deeper

How the numbers are calculated

  • The weirdness meter: a move is the change from one observation to the next at the series' own step — a trading day (oil), a week (claims), a month or a quarter — with no gap between the two: percent for prices, money, output and productivity, percentage points for the unemployment and saving rates, dollars for oil, a count for claims. Each card's move is the largest (by size) in its crisis window: Jobless claims 2020; Oil (WTI) 2020; Unemployment rate 2020; Saving rate 2020; Money stock (M2) 2020; Gold 1979–1980; Airfares 2020–2022; Used cars 2020–2022; Real GDP 2020; S&P 500 2008–2009; Eggs 2020–2025; Productivity 2020. ×: that move divided by the average size of a move over all observations before the window (gold: from April 1968, when its price was set free).
  • σ: the move minus the average move before the window, divided by the standard deviation of those moves. The bell-curve remark compares the chance of a move that many σ from the mean under a normal distribution with the number of days, weeks, months or quarters in 13.8 billion years, the age of the universe.
  • Panics: every fall of the S&P 500's monthly average of 15% or more from a high to its lowest month before the next high, since April 1968; gold: World Bank monthly average prices of the same two months. Monthly averages smooth single days: from closing high to closing low, each fall was deeper.
  • The 2020 timeline runs from July 2019 to June 2023. Each row's crisis extreme is its highest (claims, unemployment, saving, M2, used cars, eggs) or lowest (S&P 500, oil, airfares) value from February 2020 on.
  • Homes: Shiller's nominal US home price index, monthly since 1953 (the latest decades are the S&P CoreLogic Case-Shiller US National Home Price Index), yearly before that. A fall runs from a high to the lowest month before the next high. Near-zero rates: the effective federal funds rate at 0.25% or less, daily.
  • Oil: U.S. Energy Information Administration, WTI spot price, Cushing, Oklahoma (series DCOILWTICO), daily since 1986; retrieved from FRED, Federal Reserve Bank of St. Louis. US government data, public domain.
  • Jobless claims: U.S. Employment and Training Administration (Department of Labor), initial claims, seasonally adjusted (series ICSA), weekly since 1967; retrieved from FRED, Federal Reserve Bank of St. Louis. US government data, public domain.
  • Unemployment rate (UNRATE), unemployed persons (UNEMPLOY), median weeks unemployed (UEMPMED), consumer prices — all items (CPIAUCSL), used cars and trucks (CUSR0000SETA02), airline fares (CUSR0000SETG01) — the average price of a dozen grade A large eggs (APU0000708111) and output per hour (OPHNFB): U.S. Bureau of Labor Statistics, retrieved from FRED, Federal Reserve Bank of St. Louis. US government data, public domain.
  • Personal saving rate (PSAVERT) and real GDP (GDPC1): U.S. Bureau of Economic Analysis, retrieved from FRED, Federal Reserve Bank of St. Louis. US government data, public domain.
  • M2 money stock (M2SL), seasonally adjusted: Board of Governors of the Federal Reserve System, H.6, retrieved from FRED, Federal Reserve Bank of St. Louis. US government data, public domain.
  • Federal funds effective rate: Board of Governors of the Federal Reserve System, H.15 Selected Interest Rates. The EFFR is subject to the Terms of Use posted at newyorkfed.org. The New York Fed is not responsible for publication of the EFFR by BigCapital, does not sanction or endorse any particular republication, and has no liability for your use.
  • Gold: World Bank Commodity Price Data (The Pink Sheet), monthly average prices; licensed CC BY 4.0. Source: World Bank.
  • S&P 500: Robert J. Shiller, Online Data (Yale University), the S&P Composite price as monthly averages of daily closes.
  • Home prices: U.S. Home Price and Related data, for Figure 3.1 in Robert J. Shiller, Irrational Exuberance, 3rd edition, Princeton University Press, 2015, as updated by the author (shillerdata.com).
  • Recession dates: NBER Business Cycle Dating Committee.
  • M2, from the data's notes: Seasonally adjusted. The Fed changed the definition in May 2020 (savings deposits moved into M1 and stayed in M2).
  • Shiller's notes on the latest months: Oct price is Oct 2nd close; Sept/Oct CPI estimated; Oct GS10 is Oct 2nd value.
  • History, not a forecast. Nothing here is investment advice.