B
Evidence Grade B
Graded
under review
Safe to Cite
Current
11.5%
11.5% -- annual return for S&P 500 (2026)
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
11.5%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
50
Citation Chain
90
Independence
30
Methodology
45
Freshness
86
Source
Forbes España
Primary
Tier A
https://forbes.es/forbes-funds/246980/lecciones-vitales-y-17-ideas-bursatiles-del-multimillonario-ma… ↗
Source Article
Lecciones vitales y 17 ideas bursátiles del multimillonario Mario Gabelli - Forbes España
El viejo y cínico adagio que sostiene que la mejor manera de acabar con una pequeña fortuna en bolsa es empezar con una gran fortuna no se aplica a Mario J. Gabelli, de origen modesto pero que tras más de 55 años como inversor profesional tiene un patrimonio neto de 1.700 millones de dólares. Nacido…
Original Research
Forbes España
· Original study ↗
Methodology
Aproximadamente desde 1977.
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2009-2023 | 18% | |
| 2017 | 22% | +22.2% |
| 2026 (current) | 11.5% | -47.7% |
Segmentation
Channelrss_feed
Cite this stat
Plain Text
S&P 500: 11.5% annual return. Source: Forbes España (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/sp500-annual-return
HTML Embed
<blockquote cite="https://lighthousedata.io/data/sp500-annual-return" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>11.5%</strong> -- annual return for S&P 500<br><small>Source: Forbes España (2026) · <a href="https://lighthousedata.io/data/sp500-annual-return" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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