https://www.quantcompose.com/blog Notes from building Quant Compose. en-gb Tue, 13 Oct 2026 02:10:23 GMT https://www.quantcompose.com/blog/private-beta-how-access-opens https://www.quantcompose.com/blog/private-beta-how-access-opens Quant Compose is in private beta. Access opens in stages by cohort, invitations arrive by email, and there is no self-serve sign-up during this period. Sun, 06 Sep 2026 00:00:00 GMT https://www.quantcompose.com/blog/research-not-execution https://www.quantcompose.com/blog/research-not-execution The workspace is a research product. It does not place trades, route orders or give investment advice, and every generated report says so. Tue, 01 Sep 2026 00:00:00 GMT https://www.quantcompose.com/blog/the-worst-fold-is-the-headline https://www.quantcompose.com/blog/the-worst-fold-is-the-headline A mean ROC AUC of 0.62 can hide a fold that barely beats a coin flip. The number that should lead a validation report is the worst one, not the average. Tue, 25 Aug 2026 00:00:00 GMT https://www.quantcompose.com/blog/what-119-means https://www.quantcompose.com/blog/what-119-means The catalogue spans 119 research methods across the whole workflow. Only 17 describe predictive-model families, and none is a count of selectable models. Tue, 18 Aug 2026 00:00:00 GMT https://www.quantcompose.com/blog/why-we-count-trials-against-you https://www.quantcompose.com/blog/why-we-count-trials-against-you A backtest chosen from sixty tried configurations is a weaker claim than the same number tried once. How the workspace tracks that difference. Mon, 10 Aug 2026 00:00:00 GMT https://www.quantcompose.com/blog/bring-your-own-data https://www.quantcompose.com/blog/bring-your-own-data What the workspace requires from an uploaded CSV, what happens when a column is missing, and which data providers it will and will not fetch from. Tue, 04 Aug 2026 00:00:00 GMT