What we learned by losing
The 5 worst-performing picks in the portfolio. No filters. No edits. Verifiable on-chain.
Updated in real time · calculated at Aug 17, 2026, 3:47 PM
⚠ Important notice
This page shows actual portfolio losses. Past performance does not guarantee future results. This is NOT personalized financial advice.
See methodology and full disclosures →
How we chose this list
These are the 5 picks with the lowest return % from the full portfolio, calculated in real time based on the weighted-average cost basis of ALL our buys (including re-buys). The list is NEVER edited by hand. If a pick improves, it automatically drops out. If it gets worse, it automatically enters. The minimum to qualify is at least 30 days since the first buy.
Exact criteria:
- Weighted-average cost basis across all transactions per ticker
- Minimum 30 days since the first purchase
- Sorted worst-to-less-worst (return % ASC)
- Top 5. If fewer than 5 picks are negative, only the existing ones are shown
- Updated on every visit. No cherry-picking possible
Retrospective analysis in progress. The numbers themselves are already verifiable on-chain below.
* Past performance does not guarantee future results. Return calculated as (current_price − weighted_avg_buy_price) / weighted_avg_buy_price. See methodology.
Retrospective analysis in progress. The numbers themselves are already verifiable on-chain below.
* Past performance does not guarantee future results. Return calculated as (current_price − weighted_avg_buy_price) / weighted_avg_buy_price. See methodology.
Retrospective analysis in progress. The numbers themselves are already verifiable on-chain below.
* Past performance does not guarantee future results. Return calculated as (current_price − weighted_avg_buy_price) / weighted_avg_buy_price. See methodology.
Retrospective analysis in progress. The numbers themselves are already verifiable on-chain below.
* Past performance does not guarantee future results. Return calculated as (current_price − weighted_avg_buy_price) / weighted_avg_buy_price. See methodology.
Retrospective analysis in progress. The numbers themselves are already verifiable on-chain below.
* Past performance does not guarantee future results. Return calculated as (current_price − weighted_avg_buy_price) / weighted_avg_buy_price. See methodology.
Context of the full portfolio
These 5 picks are one slice of the portfolio. To see all positions (winners and losers) visit the full portfolio. The full portfolio performance is also available in real time and is also verifiable.
Frequently asked questions
Why do we publish this?
Because any portfolio that only shows wins is editing reality. Honesty about losses is part of the research. If we want our track record to be verifiable, it has to include the bad stuff too.
How were these 5 chosen?
Algorithmically. We take positions with at least 30 days since the first purchase, compute return % using the weighted-average price across all transactions per ticker, and sort worst-first. We take the top 5. No exceptions.
How do I verify it wasn't edited?
Every transaction is registered on Base (Ethereum L2) with a unique attestation UID. The source code is on GitHub. Selection is a pure function of the source code and current prices — there is no way to edit the list without breaking the hashes.
How does this work with re-buys?
When we have multiple buys of the same ticker, the effective price is the weighted average of all of them. A re-buy at a lower price IMPROVES the average and reduces the loss; a higher one WORSENS it. The calculation updates in real time every time we add a transaction.
Is this financial advice?
No. This is editorial and informational content. It is not a recommendation to buy, sell, or hold any security. Always consult a qualified financial adviser before making investment decisions.
Disclosures
- This page is educational content, not personalized financial advice.
- Returns are gross: they do not include taxes, fees, or slippage.
- Returns are computed in real time based on the weighted-average price of all buys.
- The selection of the 5 picks is algorithmic and deterministic. See methodology.
- Vectorial Data operates under the Publisher's Exclusion of the Investment Advisers Act of 1940 (Section 202(a)(11)(D)).
- We are not a broker-dealer, RIA, or custodial. We do not execute trades. We do not custody your assets.
- For UK residents: this page may constitute a financial promotion under FCA Section 21 of FSMA 2000. Consult an FCA-authorized adviser before making decisions.
See full disclosures →
Last updated: 2026-04-10