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S&p 500 Performance
Zoonotic leishmaniasis in China: Current status and challenges to elimination
Plos.org·23d ago·bullish
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Leishmaniasis is expanding worldwide along with sand fly vectors. In China, particular challenges arise from its broad climatic and ecological gradients, the diversity of phlebotomine sand fly species, and numerous potential mammalian and reptilian hosts. Two…
Abstract Leishmaniasis is expanding worldwide along with sand fly vectors. In China, particular challenges arise from its broad climatic and ecological gradients, the diversity of phlebotomine sand … [+81401 chars]
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Published
May 21, 2026, 02:00 PM
Author
Thamali Manathunga, Vanessa Barrs, Qian Han, Fang Fang, Jairo Alfonso Mendoza-Roldan, Marcos Antonio Bezerra-Santos, Filipe Dantas-Torres, Domenico Otranto
Source
Plos.org
Frequently asked · S&p 500 Performance
Why is SpaceX not included in the S&P 500?
The S&P 500 index committee maintains a 12-month waiting period for new IPOs and requires companies to meet specific profitability tests, which SpaceX has not yet satisfied.
What is the historical performance of the S&P 500?
The index has delivered approximately 10% average annual returns over the long term, with gains of over 25% in 2023 and 2024.
How can investors gain exposure to companies excluded from the S&P 500?
Investors may look to other market benchmarks like the Nasdaq 100 or Russell 1000, or utilize thematic ETFs that hold pre-IPO or direct stakes in specific companies.