TOP TIERMARKET NEWSWIRE
Movers explained · 2026-09-18

Archived explainer. For the current picture see today's QBTS page.

Why Is D-WAVE QUANTUM INC (QBTS) Stock Down Today?

By the Top Tier Newswire AI Desk · September 18, 2026 at 10:09 AM ET · reviewed against 4 wire stories

D-WAVE QUANTUM INC (QBTS) is down -5.62% in the latest session. Our newswire has captured 4 stories on QBTS across 3 sources in the last 36 hours, with AI sentiment reading mixed (avg 56/100).

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QBTS stock fell 5.62% to $16.70 in afternoon trading on Tuesday. The decline came amid a broader sell-off in the quantum computing sector and a string of recent underwhelming fundamentals. The stock opened with a modest gap up but quickly reversed course, reaching a session low of $16.66 before closing near that level.

What Happened

D-Wave Quantum Inc. (QBTS) is navigating a challenging environment as it continues to report declining revenue and unprofitable operations. The company filed a Form 8-K with the SEC on September 17, disclosing a Regulation FD update, though the content of the filing has not been publicly detailed. Meanwhile, recent coverage highlighted the company’s upcoming Qubits Asia 2026 event, which is expected to showcase its growing presence in the Asia-Pacific region. However, the stock’s performance appears to reflect ongoing skepticism from investors, particularly after a recent earnings call and amid broader macroeconomic uncertainty. The stock has also been pressured by a series of insider sales, including a recent $72,000 in sell transactions by two insiders within the last 90 days.

What The Data Shows

QBTS opened at $17.92, a 1.3% gap up from the previous close, but quickly moved lower, hitting a session high of $18.10 within the first 15 minutes. The stock traded down for the rest of the session, closing near its low. Volume was light at 3.2 million shares, representing just 0.1 times the 3-month daily average. Over the past eight sessions, the stock has declined 4.8% from $18.29 to $17.42. The stock printed 20 fresh 52-week lows on September 18, indicating continued investor pessimism. With a market cap of $6.1 billion, a trailing 12-month revenue decline of 44.2%, and a beta of 2.14, the stock remains highly volatile and sensitive to broader market shifts.

What To Watch

Investors will need to monitor the company’s upcoming Qubits Asia 2026 event and any further developments from the recent SEC filing. Additionally, coverage breadth and institutional activity will be key indicators of sentiment shifts in the near term.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

QBTS by the numbers

Last: $16.70Session: -5.62%7 sessions: -4.75%Coverage: 4 stories / 3 sourcesAI sentiment: 56/100 (mixed)Mkt cap: $6.1B52w: $12.75 to $46.75
QBTS · today's session (5-min) · -4.44% vs prior close · updated 3:39 PM ET
$16.47$17.33$18.18prev close $17.69$16.917:00 AM9:08 AM11:17 AM1:26 PM3:35 PM7:00 AM · $17.957:05 AM · $17.857:10 AM · $17.887:15 AM · $17.807:20 AM · $17.807:25 AM · $17.797:30 AM · $17.767:35 AM · $17.777:40 AM · $17.797:45 AM · $17.777:50 AM · $17.777:55 AM · $17.788:00 AM · $17.678:05 AM · $17.658:10 AM · $17.678:15 AM · $17.628:20 AM · $17.678:25 AM · $17.738:30 AM · $17.758:35 AM · $17.778:40 AM · $17.818:45 AM · $17.798:50 AM · $17.848:55 AM · $17.759:00 AM · $17.739:05 AM · $17.779:10 AM · $17.849:15 AM · $17.869:20 AM · $17.879:25 AM · $18.099:30 AM · $17.429:35 AM · $17.279:40 AM · $17.269:45 AM · $17.159:50 AM · $17.059:55 AM · $16.8910:00 AM · $16.7710:05 AM · $16.7410:10 AM · $16.6610:15 AM · $16.6110:20 AM · $16.6510:25 AM · $16.6110:30 AM · $16.6810:35 AM · $16.7110:40 AM · $16.6610:45 AM · $16.6610:50 AM · $16.6710:55 AM · $16.6311:00 AM · $16.6111:05 AM · $16.6111:10 AM · $16.5711:15 AM · $16.5911:20 AM · $16.6511:25 AM · $16.6111:30 AM · $16.5911:35 AM · $16.6111:40 AM · $16.7011:45 AM · $16.7111:50 AM · $16.7411:55 AM · $16.7712:00 PM · $16.7112:05 PM · $16.6612:10 PM · $16.6212:15 PM · $16.6412:20 PM · $16.5712:25 PM · $16.5912:30 PM · $16.6312:35 PM · $16.5912:40 PM · $16.6312:45 PM · $16.7112:50 PM · $16.7312:55 PM · $16.721:00 PM · $16.701:05 PM · $16.661:10 PM · $16.661:15 PM · $16.681:20 PM · $16.681:25 PM · $16.681:30 PM · $16.661:35 PM · $16.681:40 PM · $16.701:45 PM · $16.741:50 PM · $16.771:55 PM · $16.772:00 PM · $16.792:05 PM · $16.792:10 PM · $16.752:15 PM · $16.782:20 PM · $16.752:25 PM · $16.772:30 PM · $16.762:35 PM · $16.732:40 PM · $16.742:45 PM · $16.792:50 PM · $16.772:55 PM · $16.763:00 PM · $16.773:05 PM · $16.783:10 PM · $16.773:15 PM · $16.833:20 PM · $16.933:25 PM · $16.883:30 PM · $16.893:35 PM · $16.91
AI sentiment, last 36h · averaged over 4 stories · 56/100 bullish
AI sentiment 56/100 (bullish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 3 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishTipRanks · sentiment 58 · Why Quantum Stocks IONQ, RGTI, QBTS and QUBT Are Rising after the Fed Rate HikeTipRanks · 58Why Quantum Stocks IONQ, RGTI, QBTS and QUBT Are Rising after the Fed Rate HikeTipRanks · sentiment 63 · D-Wave (QBTS) to Showcase Growing Quantum Adoption at Qubits Asia 2026TipRanks · 63D-Wave (QBTS) to Showcase Growing Quantum Adoption at Qubits Asia 2026The Motley Fool · sentiment 52 · Why D-Wave Quantum Stock Popped TodayThe Motley Fool · 52Why D-Wave Quantum Stock Popped Today
1d agoThe Motley FoolNEUTRAL 52General

Why D-Wave Quantum Stock Popped Today

D-Wave investors are grasping at straws.

1d agoTipRanksBULLISH 63Product/PR

D-Wave (QBTS) to Showcase Growing Quantum Adoption at Qubits Asia 2026

D-Wave Quantum Inc. ($QBTS) is putting its growing Asia-Pacific customer base in the spotlight as the quantum computing company prepares to host Qubits Asia 2026 in...

1d agoTipRanksBULLISH 58Fed/CB

Why Quantum Stocks IONQ, RGTI, QBTS and QUBT Are Rising after the Fed Rate Hike

1d agoSEC 8-KNEUTRAL 50General

D-Wave Quantum Inc. (QBTS) files 8-K

Filed: 2026-09-17 AccNo: 0001907982-26-000150 Size: 160 KB Item 7.01: Regulation FD Disclosure Item 9.01: Financial Statements and Exhibits

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More on QBTS: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier QBTS move explainers: 2026-09-18 · 2026-09-08 · 2026-08-27 · 2026-08-26 · 2026-08-25 · 2026-08-24 · 2026-08-21