Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?
Published . Updated .
Quantum stocks IonQ, D-Wave, Rigetti and QCi plunged in October. Can upcoming Q3 earnings, revenue growth and commercial progress reverse the selloff?
Directly affected
- IONQ IonQ-25.8% 30d
Named in this report.
Indirectly affected
- DIA SPDR Dow Jones Industrial Average ETF-1.1% 30d
SPDR Dow Jones Industrial Average ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story.
- QQQ Invesco QQQ-2.0% 30d
Invesco QQQ: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story.
- XLK Technology Select Sector SPDR+9.4% 15d
Technology Select Sector SPDR holds the technology sector that IonQ belongs to, so it often moves with news about it.
- IOT Samsara+10.5% 30d
Samsara is a peer of IonQ in computer integrated systems design; rivals often move on the same news.
- LDOS Leidos Holdings+18.5% 13d
Leidos Holdings is a peer of IonQ in computer integrated systems design; rivals often move on the same news.
- GDDY GoDaddy+16.2% 30d
GoDaddy is a peer of IonQ in computer integrated systems design; rivals often move on the same news.
- CACI CACI International+6.1% 30d
CACI International is a peer of IonQ in computer integrated systems design; rivals often move on the same news.
- JKHY Jack Henry & Associates+6.5% 30d
Jack Henry & Associates is a peer of IonQ in computer integrated systems design; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| IONQ | +2.21% | +7.93% | base | -6.29% | after close | after close | after close |
| DIA | +1.17% | +1.48% | base | +0.60% | after close | after close | after close |
| QQQ | +3.12% | +5.08% | base | -1.30% | after close | after close | after close |
| XLKNo price data for this ticker | — | — | — | — | — | — | — |
| IOTNo price data for this ticker | — | — | — | — | — | — | — |
| LDOSNo price data for this ticker | — | — | — | — | — | — | — |
| GDDYNo price data for this ticker | — | — | — | — | — | — | — |
| CACINo price data for this ticker | — | — | — | — | — | — | — |
| JKHYNo price data for this ticker | — | — | — | — | — | — | — |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
Market Call
Think this story will push the stock up or down over the next three trading days? Make a free call and see what other readers think. Points are play money with no cash value.
Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide? Yahoo Finance
Source: Yahoo Finance
The price since 2 Nov 2026: Spdr Dow Jones Industrial Average Etf Trust (DIA) versus the S&P 500
| Company | When | Move | Status |
|---|---|---|---|
| Spdr Dow Jones Industrial Average Etf Trust (DIA) | that day | +0.60% | final price |
| Spdr Dow Jones Industrial Average Etf Trust (DIA) | three days earlier | +1.48% | final price |
| Spdr Dow Jones Industrial Average Etf Trust (DIA) | five days earlier | +1.17% | final price |
| IONQ | that day | -6.29% | final price |
| IONQ | three days earlier | +7.93% | final price |
| IONQ | five days earlier | +2.21% | final price |
| Invesco Qqq Trust, Series 1 (QQQ) | that day | -1.30% | final price |
| Invesco Qqq Trust, Series 1 (QQQ) | three days earlier | +5.08% | final price |
| Invesco Qqq Trust, Series 1 (QQQ) | five days earlier | +3.12% | final price |
Trades by members of Congress and officials in the stocks in this story
- Scott A Kupor, an executive branch official, sold Samsara (IOT), worth $1,000,001 - $5,000,000 on 21 Aug 2026. That is 73 days before publication. Filed 24 Oct 2026. View the filing.
- Rep. Gilbert Cisneros bought GoDaddy (GDDY), worth $1,001 - $15,000 on 18 Aug 2026. That is 76 days before publication. Filed 10 Sep 2026. View the filing.
- Rep. Lisa McClain bought Caci International (CACI) (held by a spouse), worth $15,001 - $50,000 on 14 Sep 2026. That is 49 days before publication. Filed 12 Oct 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who gains and who loses around Spdr Dow Jones Industrial Average Etf Trust (DIA)
Companies mentioned with this story
- DIA Spdr Dow Jones Industrial Average Etf Trust
In “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?,” Spdr Dow Jones Industrial Average Etf Trust (DIA) is linked, with no stored direction, medium confidence. Reason on file: SPDR Dow Jones Industrial Average ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
- QQQ Invesco Qqq Trust, Series 1
In “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?,” Invesco Qqq Trust, Series 1 (QQQ) is linked, with no stored direction, medium confidence. Reason on file: Invesco QQQ: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
- IWM Ishares Tr
In “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?,” Ishares Tr (IWM) is linked, with no stored direction, medium confidence. Reason on file: iShares Russell 2000 ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
- RSP Invesco Exchange Traded Fd T
In “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?,” Invesco Exchange Traded Fd T (RSP) is linked, with no stored direction, medium confidence. Reason on file: Invesco S&P 500 Equal Weight ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
- VTI Vanguard Index Fds
Vanguard Index Fds (VTI) is linked, with no stored direction, medium confidence in the 2 Nov 2026 story “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?.” Reason on file: Vanguard Total Stock Market ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
Spdr Dow Jones Industrial Average Etf Trust (DIA)
Spdr Dow Jones Industrial Average Etf Trust (DIA) is the company in “Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?,” the 2 Nov 2026 this story story.
For Spdr Dow Jones Industrial Average Etf Trust (DIA), the reason on file says SPDR Dow Jones Industrial Average ETF: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
A second company, Invesco Qqq Trust, Series 1 (QQQ), is listed for a different reason: Invesco QQQ: it is a broad US stock-market fund. Linked by “stocks” (the broad US market) in this story
The price range for Spdr Dow Jones Industrial Average Etf Trust (DIA), and the dates in the story
DIA traded between 504.92 and 522.62 across 18 sessions. The latest close on file is 515.65. IWM traded between 269.88 and 285.25 across 20 sessions. The latest close on file is 279.37. QQQ traded between 683.47 and 762.84 across 20 sessions. The latest close on file is 690.51.
How strong the case is around Spdr Dow Jones Industrial Average Etf Trust (DIA)
40 out of 100
“Quantum Stocks Plunge in October: Can Q3 Earnings Halt the Slide?” scores 40 out of 100. The score uses 1 sources, and 5 linked companies.