Honest experiments

Quantitative strategies and honest backtesting: what we tested and didn't work, with the numbers. Publishing the null results is part of the brand.

Published on 2026-09-04

Núcleo S&P 500 falls below the benchmark

The bot went from 7.43% to 4.80% since seeding while the house yardstick slipped from 7.21% to 6.71%. It is the only crossing this week, and it is downward.

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Published on 2026-08-31

Momentum + Core at -14.52% and demoted to experimental; the house benchmark sits at +7.1%

Six of seven simulated portfolios fell this week. The worst is down 14.52% since seeding and has lost its public label. The equal-weighted reference panel is up 7.1% over the common window.

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Published on 2026-08-23

We froze OKX's top 50 and watched for seven weeks. The scoreboard says +1.20%; the actual return, −75 basis points

In July we wrote down which test we would run and when. Today was the day. With the cohort frozen in advance and 4,142 positions captured hour by hour, persistence of skill hasn't just weakened — it has vanished. And the market was up 21.6% while they lost money.

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Published on 2026-08-20

We measured seven kinds of corporate events. Only three move the stock, and 42% of the 'news' is noise

We classified 7,046 news items into seven event types and measured whether they were followed by more movement than usual — not by rises or falls. Earnings, executive changes and guidance, yes; analyst ratings, capital operations, regulation and M&A, no. Ten years of SEC filings confirm the pattern. And the criterion we fixed for adopting a filter failed, so we are telling you.

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Published on 2026-08-14

We spent a year measuring with an instrument six times too blunt

We found out that the way we judged our signals was throwing away 95% of the data. We re-measured ten signals with the right method — momentum and low volatility included — and here is what came out.

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Published on 2026-08-05

48 days of live forward testing: the full scoreboard, including the strategy that is down 10.6%

We seeded eleven strategies in paper on June 18th and committed to publishing the result win or lose. Here it is in full: the one beating the market (and how much of that edge evaporates against the right benchmark), the one collapsing, the one we already called a mirage — and why after 48 days none of it means anything yet.

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Published on 2026-07-04

We put OKX's 50 most-copied traders under the microscope: the showcase shines, persistence says noise

6,496 exchange-verified trades over 3 months, serious statistics: 9 of 24 traders look like geniuses — until the persistence test. Here's how a copy-trading leaderboard manufactures its shine.

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Published on 2026-06-25

The truth about Binance grid bots

We backtested the most popular grid bots on real history. They win sideways, sink in the crash, and the 7-day drawdown hides the risk. The numbers, unvarnished.

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Published on 2026-06-25

Now we validate grid bots from 7 exchanges, not just Binance

We expanded the free tool: paste any grid bot from Binance, Bybit, OKX, KuCoin, Bitget, Gate.io or MEXC and we'll tell you the truth on real history.

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Published on 2026-06-24

Paste any Binance bot and we'll tell you the truth

New free tool: paste any Binance grid bot's URL and we backtest it on the fly over real history, no make-up.

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Published on 2026-06-23

What we have today (and what we don't): an honest status

No smoke: what's built and working, what's in forward validation, and what doesn't exist yet.

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Published on 2026-06-22

Why your backtest lies: survivorship bias

If you test your strategy only on the companies still in the index today, you measure a return that never existed.

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Published on 2026-06-20

We tested news sentiment. It doesn't predict the market.

Catalyst-news sentiment measured live: indistinguishable from zero (and, with cost, negative). The numbers, unvarnished.

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Published on 2026-06-18

Cost: the wall that knocks down most short-term signals

Many strategies win gross and lose net. Over short horizons, fees and spread eat the edge.

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Published on 2026-06-16

What an honest verdict is: why a high Sharpe isn't enough

Date-clustered bootstrap, PSR and percentage of positive years. How we decide if a strategy truly beats chance.

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Published on 2026-06-14

Overfitting: how a thousand variants fool you without noticing

Try enough combinations and one will look like gold by pure chance. Here's how we control overfitting.

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Published on 2026-06-12

Horizon matters: why the edge lives at a month, not intraday

We tested from 1 minute to several months. The sweet spot with real edge is 1–3 months, not the short term.

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Published on 2026-06-10

Stock ranking vs. market timing: what really works

Guessing when the market rises or falls came out null again and again. Ranking which stocks to hold did not.

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Published on 2026-06-08

When long-only beats long/short (and why)

Shorting doesn't always add: it has borrow cost and, in certain regimes, losing on the short leg destroys the result.

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Published on 2026-06-06

Market regime: sometimes the best trade is to sit out

A regime filter that keeps you in cash at the wrong moment can be worth more than any selection signal.

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Published on 2026-06-04

Academic backing vs. promises: telling signal from marketing

A credible edge usually has peer-reviewed literature behind it. If it only has a pretty chart, be skeptical.

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