I’m Reinis Fischer, founder & CEO of the Terramatris crypto hedge fund. Passionate about capital markets, with deep expertise in derivatives markets.

Each week, I publish a detailed options trading journal with real positions, adjustments, and results.

Outside the markets, I might occasionally share travel experiences, standout restaurants, simple food ideas, and my ongoing building and renovation projects

Weekly options

Week 57 / NVDA Credit Spreads, ARCC Put, +0.86% Gain

As of May 8th, 2026, our options trading driven stock portfolio increased slightly by another +0.86%, closing at $12,323.NVDA stock surged above $215, and our previous week’s credit spreads expired worthless. I opened a new position for next week’s…

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Week 56 / How NVDA Pullback Boosted Our Options Income Strategy (+0.97%)

As of May 1st 2026, our options trading driven stock portfolio increased slightly by +0.97%, closing at $12,218. This week was one of the rare times I didn’t mind seeing NVDA drop—from $210 to below $200. As a put seller, sharp rallies are…

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Week 55 / NVDA Above $200: How the Rally Impacts Our Options Strategy

As of April 24, 2026, our options trading driven stock portfolio decreased slightly by -0.72%, closing at $12,101. Since the portfolio’s base currency is EUR, the dip is partly due to USD strengthening by about one cent, now trading around 1.17…

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Latest articles

Berlin Zoo and Aquarium: One of the Best Things To Do in Berlin With Kids

At the start of April 2026, during our roughly five-day trip to Berlin, we finally visited the famous Berlin Zoo for the first time - or at least the first time I can actually remember. There is a chance my mom might have taken me here sometime in the early 1990s, but if so, those memories are long gone. This visit felt completely new, and…

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Berlin Brandenburg Airport

In April 2026, I had my first experience with Berlin Brandenburg Airport (BER) while flying the Riga–Berlin–Riga route with airBaltic. This was my first time using Berlin’s main international airport, and overall, it left a solid impression—modern, functional, and relatively easy to navigate. About a decade ago, I had the chance to travel through…

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