Bitcoin or IPO
Calculate the opportunity cost of not buying bitcoin
Bitcoin or IPO launched on May 2, 2021 with 97 votes, #428 of 3,505 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.
What it does
My friends kept telling me that bitcoin was 'too expensive' to buy now, and that they had 'missed the chance' to buy it. In response, I made this tool to show them the opportunity cost of not buying bitcoin, compared to recent tech IPOs.
Calculate the opportunity cost of buying bitcoin versus the top 50 tech IPOs of the last decade.
Does a similar job
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Quantifying opportunity cost with a deliberately "simple" web appFeb 2026 · shouldhavebought.com · ▲28Hi HN, A while ago I had a mildly depressing realization. Back in 2010, I had around $60k. Like a "responsible" person, I used it as a down payment on an apartment. Recently, out of curiosity, I calculated what would have happened if I had instead put that money into NVIDIA stock. I should probably add some context. For over 10 years I've worked as a developer on trading platforms and financial infrastructure. I made a rule for myself - never trade on the market. In 2015, when Bitcoin traded about 300 usd, my brother and I were talking about whether it was a bubble. He made a bold claim that…
Fomo Cryptocurrency Calculator2021 · fomocryptocalculator.com · ▲70Calculate your regret for not investing in crypto sooner

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