Tone mix
Week by week 50 weeks
Share of Quantum-Si Incorporated Class A Common Stock's 110 headlines over the last 52 weeks by the model's call, and the same mix week by week.
Biggest swings in the last year
The weeks whose tone moved furthest from the 8-week average, with the story most outlets carried that week.
- Week of Oct 19, 2026 · tone -100Quantum-Si (NASDAQ:QSI) Stock Rating Lowered by Wall Street Zen-107
- Week of Sep 14, 2026 · tone +100Quantum-Si (NASDAQ:QSI) Upgraded at Wall Street Zen+100
- Week of Aug 4, 2025 · tone -100Quantum-Si (QSI) Q2 Revenue Falls 47% | The Motley Fool-50
- Week of Oct 13, 2025 · tone -100Why Quantum-Si Stock Flopped on Friday | The Motley Fool-50
- Week of Jan 13, 2025 · tone 0Quantum-Si incorporated (NASDAQ:QSI) Short Interest Update-44
- Week of Oct 12, 2026 · tone +66Quantum-Si (Nasdaq: QSI) Stock Soars - Hits 19-Amino-Acid Detection Milestone on Proteus+42
Daily headline tone, last 90 sessions
Hover a session for its totals; click to pin.
Each point is the average score of the headlines about Quantum-Si Incorporated Class A Common Stock in one trading session, with the 8-session average drawn through it. Sessions with no headline about the company have no point.
Tone by period
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| Last 7 sessions | 5 | 0 |
| Last 30 sessions | 13 | +15 |
| Last 90 sessions | 31 | +6 |
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Every headline in the period counts equally.
Headlines on Thursday, October 29, 2026
1 headline, average tone +100: 1 positive, 0 neutral and 0 negative. Showing all 1.
- www.openpr.com · 1 outletGaining Ground: FNUC, PRSO, QSI, PDSB Stocks to Watch NowPositive
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| Gaining Ground: FNUC, PRSO, QSI, PDSB Stocks to Watch Now | www.openpr.com | 1 | Positive |
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Headlines on Wednesday, October 28, 2026
1 headline, average tone +100: 1 positive, 0 neutral and 0 negative. Showing all 1.
- www.dailypolitical.com · 1 outletQuantum-Si (NASDAQ:QSI) Stock Rating Raised to Hold at Wall Street ZenPositive
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| Quantum-Si (NASDAQ:QSI) Stock Rating Raised to Hold at Wall Street Zen | www.dailypolitical.com | 1 | Positive |
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Headlines on Tuesday, October 27, 2026
1 headline, average tone 0: 0 positive, 1 neutral and 0 negative. Showing all 1.
- www.themarketsdaily.com · 1 outletCritical Comparison: Adaptive Biotechnologies (NASDAQ:ADPT) versus Quantum-Si (NASDAQ:QSI)Neutral
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| Critical Comparison: Adaptive Biotechnologies (NASDAQ:ADPT) versus Quantum-Si (NASDAQ:QSI) | www.themarketsdaily.com | 1 | Neutral |
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Headlines on Thursday, October 22, 2026
1 headline, average tone -100: 0 positive, 0 neutral and 1 negative. Showing all 1.
- www.themarketsdaily.com · 1 outletQuantum-Si (NASDAQ:QSI) Cut to "Sell" at Wall Street ZenNegative
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| Quantum-Si (NASDAQ:QSI) Cut to "Sell" at Wall Street Zen | www.themarketsdaily.com | 1 | Negative |
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Headlines on Wednesday, October 21, 2026
1 headline, average tone -100: 0 positive, 0 neutral and 1 negative. Showing all 1.
- www.tickerreport.com · 1 outletQuantum-Si (NASDAQ:QSI) Stock Rating Lowered by Wall Street ZenNegative
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| Quantum-Si (NASDAQ:QSI) Stock Rating Lowered by Wall Street Zen | www.tickerreport.com | 1 | Negative |
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How the score works
A headline's tone is not a forecast of the share price. Read the headlines themselves before acting on an average.
Which headlines count
Headlines come from the GDELT global news feed from 2019-09-23 on. A headline counts only when a model judges it to be about Quantum-Si Incorporated Class A Common Stock, not a passing mention.
How each headline is scored
The model calls each headline positive, neutral or negative news for the company. A period's tone is the share of positive minus negative headlines, from -100 (all negative) to +100 (all positive).
When a headline counts
Headlines published by 9:15 a.m. New York time belong to that day's session. Later and weekend headlines move to the next trading session.
Repeated stories
When several outlets carry the same headline, it counts once per session.