About
Senior analyst at NIV researching public fintech and technology companies. Previously led research at Artemis and spent six years on the buyside at BlackRock and Roundhill Investments. Holds a BS from Fordham and an MBA from Columbia, and is a CFA Charterholder.
Mario S. @covered_call
The most generational fumble of our time https://t.co/1t2Nk4OWVs
Jul 30, 2026 Β· β₯ 1
Mario S. @covered_call
This is literally just the drawdown of the semi sector times 2. If anything, flows have come into levered ETFs because the drawdown isnβt worse (there are 3x LETFs like SOXL) https://t.co/TTFC86DtKi
Jul 21, 2026 Β· β₯ 1
Mario S. @covered_call
DoorDash is the new Kalshi https://t.co/SYH8Xi9V0X

Jul 20, 2026 Β· β₯ 2
Experience
- North Island VenturesSenior Investment Analystcurrent2026 β presentNew York, New York, United States
- ArtemisFundamental Research Lead2025 β 2026New York, New York, United States
- NaavikResearch Contributor2023 β 2025
- DG Capital ManagementSummer & Fall Research Analyst2024New York, New York, United States
- Roundhill InvestmentsVice President of Research2020 β 2023New York, New York, United States
- BlackRockAssociate2020New York, New York, United States
- BlackRockAnalyst2017 β 2019San Francisco, California
- JPMorgan Chase & Co.Summer Analyst2016New York, New York, United States
Education
- Columbia Business SchoolMaster of Business Administration - MBA, Value Investing2023 β 2025
- Fordham UniversityBachelor of Science - BS, Finance2013 β 2017
- University of LondonFinance2015
Skills & more
Languages Greek Β· Spanish
- Chartered Financial Analyst (CFA) β CFA Institute
From Mario's professional profile.
Same school
Also attended Columbia Business School576
+ 570 more
Also attended Fordham University55
+ 49 more
Also attended University of London79
+ 73 more


































