https://lukastymo.com/tags/etl/ Recent content in Etl on lukastymo Hugo en Mon, 04 May 2026 12:00:00 +0000 https://lukastymo.com/posts/029-software-engineer-value-investing-magic-formula/ Mon, 04 May 2026 12:00:00 +0000 https://lukastymo.com/posts/029-software-engineer-value-investing-magic-formula/ <h1 id="backtested-16-years-320k-invested-the-magic-formula-still-has-an-edge">Backtested: 16 years, $320k invested. The Magic Formula still has an edge.</h1> <aside class="not-prose my-6 rounded-md border-l-4 border-amber-400 bg-amber-50 dark:border-amber-500 dark:bg-amber-950 text-amber-900 dark:text-amber-100 px-4 py-3"> <div class="flex items-start gap-2"> <span class="mt-[2px] opacity-60 leading-none" aria-hidden="true"> ⚠️ </span> <div class="space-y-2 text-sm sm:text-base leading-relaxed"> <div class="flex items-center gap-2 font-semibold">Disclaimer</div> <div class=" [&>p]:m-0 [&>ul]:m-0 [&>ul]:list-disc [&>ul]:pl-5 [&>ol]:m-0 [&>ol]:list-decimal [&>ol]:pl-5 [&>ul>li]:mt-1 [&>ol>li]:mt-1 [&>ul>li::marker]:opacity-50 [&>ol>li::marker]:opacity-50 [&>pre]:m-0 [&>pre]:overflow-x-auto ">I am not a financial advisor. Nothing here is financial advice. All numbers and backtest results are simulated and altered for educational purposes only. Past backtest performance does not guarantee future profits. Do not make investment decisions based on this post.</div> </div> </div> </aside> <p>Buffett can&rsquo;t be copied. His edge is intuition built over decades. But what if you could formalize &ldquo;good business, cheap price&rdquo; into an algorithm and let it run? That&rsquo;s what this post is about.</p>