Rare event may send S&P 500 soaring
The S&P 500's rally off the lows on April 9 has been impressive and broad-based. Most stocks have participated in the move higher, including beaten-up technology stocks that bore the brunt of the post-tariffs early-month sell-off.
After President Trump unveiled worse-than-hoped reciprocal tariffs on April 2, so-called Liberation Day, the S&P tumbled 12% through April 8. The sharp and fast selling contributed to President Trump pausing most reciprocal taxes on April 9 for 90 days to negotiate deals with impacted countries.
💰💸 Don't miss the move: SIGN UP for TheStreet's FREE Daily newsletter 💰💸
The potential for Trump to strike deals, resulting in lower tariffs, sent the S&P 500 surging 10%, despite very real risks remaining for the economy.
The S&P 500's rally has been so widespread that one particularly rare signal, the Zweig Breadth Thrust, developed by legendary investor Martin Zweig, flashed on Thursday, April 24.
A rare Zweig Breadth Thrust may signal higher stock prices in one year.Image source: Nagle/Bloomberg via Getty Images
A Zweig Breadth Thrust, explained
Martin Zweig was a successful investor who published a major stock market newsletter in the 1970s. He also contributed to Barron's and was a frequent guest on Louis Rukeyser's Wall Street Week, a must-watch TV show for investors in the 1980s.
Zweig is perhaps best known for predicting Black Monday in 1987, when stocks lost over 20% in one day, coining the phrase "don't fight the Fed," and his top-selling investment book, "Winning on Wall Street."
Related: Rich Dad Poor Dad author makes surprising silver, gold price forecast
He developed the Zweig Breadth Thrust after realizing that a shift from widespread selling to buying in 10 days or less had led to significant gains over the following year.
The Zweig Breadth Thrust triggered on April 24 is just the 20th since 1945, according to Carson Investment Research. The last time we saw one was near the S&P 500's low in November 2023.
In the past, the benchmark S&P 500 has produced gains 100% of the time one year later, with an average and median return of over 23%.
Zweig Breadth Thrusts are uncommon because they require a period of extremely broad selling immediately followed by extremely broad buying.
The measure is calculated by dividing a moving average of the number of NYSE stocks advancing by the total number of advancing plus declining stocks.
Initially, a ratio of 0.659 was considered a buy signal, while 0.366 was a sell signal. However, the indicator's buy signal has since been modified to be when the 10-day exponential moving average of stocks rises above 61.5% after being below 40% within the past two weeks.
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


CNBC
31 minutes ago
- CNBC
Trump tariffs may remain in effect while appeals proceed, U.S. appeals court rules
A federal appeals court allowed President Donald Trump's most sweeping tariffs to remain in effect on Tuesday while it reviews a lower court decision blocking them on grounds that Trump had exceeded his authority by imposing them. The decision by the U.S. Court of Appeals for the Federal Circuit in Washington, D.C. means Trump may continue to enforce, for now, his "Liberation Day" tariffs on imports from most U.S. trading partners, as well as a separate set of tariffs levied on Canada, China and Mexico. The appeals court has yet to rule on whether the tariffs are permissible under an emergency economic powers act that Trump cited to justify them, but it allowed the tariffs to remain in place while the appeals play out. The Federal Circuit said the litigation raised issues of "exceptional importance" warranting the court to take the rare step of having the 11-member court hear the appeal, rather than have it go before a three-judge panel first. It scheduled arguments for July 31. The tariffs, used by Trump as negotiating leverage with U.S. trading partners, and their on-again, off-again nature have shocked markets and whipsawed companies of all sizes as they seek to manage supply chains, production, staffing and prices. The ruling has no impact on other tariffs levied under more traditional legal authority, such as tariffs on steel and aluminum imports. A three-judge panel of the U.S. Court of International Trade ruled on May 28 that the U.S. Constitution gave Congress, not the president, the power to levy taxes and tariffs, and that the president had exceeded his authority by invoking the International Emergency Economic Powers Act, a law intended to address "unusual and extraordinary" threats during national emergencies. The Trump administration quickly appealed the ruling, and the Federal Circuit in Washington put the lower court decision on hold the next day while it considered whether to impose a longer-term pause. The ruling came in a pair of lawsuits, one filed by the nonpartisan Liberty Justice Center on behalf of five small U.S. businesses that import goods from countries targeted by the duties and the other by 12 U.S. states. Trump has claimed broad authority to set tariffs under IEEPA. The 1977 law has historically been used to impose sanctions on enemies of the U.S. or freeze their assets. Trump is the first U.S. president to use it to impose tariffs. Trump has said that the tariffs imposed in February on Canada, China and Mexico were to fight illegal fentanyl trafficking at U.S. borders, denied by the three countries, and that the across-the-board tariffs on all U.S. trading partners imposed in April were a response to the U.S. trade deficit. The states and small businesses had argued the tariffs were not a legal or appropriate way to address those matters, and the small businesses argued that the decades-long U.S. practice of buying more goods than it exports does not qualify as an emergency that would trigger IEEPA. At least five other court cases have challenged the tariffs justified under the emergency economic powers act, including other small businesses and the state of California. One of those cases, in federal court in Washington, D.C., also resulted in an initial ruling against the tariffs, and no court has yet backed the unlimited emergency tariff authority Trump has claimed.


CNN
33 minutes ago
- CNN
Trump's most sweeping tariffs can remain in place for now, appeals court rules
President Donald Trump's heftiest tariffs cleared a court hurdle for now, after a federal appeals court ruled Tuesday that they could take effect while legal challenges play out. The decision came after the Trump administration appealed the Court of International Trade's ruling finding the president exceeded his authority to impose country-wide tariffs claiming a national emergency. 'Both sides have made substantial arguments on the merits. Having considered the traditional stay factors… the court concludes a stay is warranted under the circumstances,' according to the ruling. The stay is pending the course of the appeal, the court wrote, adding that the case will be heard on a sped-up basis by the full panel of judges at the court. 'The court also concludes that these cases present issues of exceptional importance warranting expedited en banc consideration of the merits in the first instance,' the order said. The appeals court ruling, however, has no bearing on the sector-wide tariffs Trump previously enacted, including those on aluminum, steel, cars and car parts. That's because he imposed those levies under Section 232 of the Trade Expansion Act – a different law than the one Trump cited for his broader trade actions. Section 232 gives a president significant power to levy tariffs on specific sectors if they believe there is a national security threat risk. This is a developing story and will be updated.


CNN
33 minutes ago
- CNN
Trump's most sweeping tariffs can remain in place for now, appeals court rules
President Donald Trump's heftiest tariffs cleared a court hurdle for now, after a federal appeals court ruled Tuesday that they could take effect while legal challenges play out. The decision came after the Trump administration appealed the Court of International Trade's ruling finding the president exceeded his authority to impose country-wide tariffs claiming a national emergency. 'Both sides have made substantial arguments on the merits. Having considered the traditional stay factors… the court concludes a stay is warranted under the circumstances,' according to the ruling. The stay is pending the course of the appeal, the court wrote, adding that the case will be heard on a sped-up basis by the full panel of judges at the court. 'The court also concludes that these cases present issues of exceptional importance warranting expedited en banc consideration of the merits in the first instance,' the order said. The appeals court ruling, however, has no bearing on the sector-wide tariffs Trump previously enacted, including those on aluminum, steel, cars and car parts. That's because he imposed those levies under Section 232 of the Trade Expansion Act – a different law than the one Trump cited for his broader trade actions. Section 232 gives a president significant power to levy tariffs on specific sectors if they believe there is a national security threat risk. This is a developing story and will be updated.