vBase Blog

ALTERNATIVE DATA DATA PROVENANCE POINT-IN-TIME QUANT DATA

Why alternative data trials fail

Most alt data evaluations stall on packaging, not signal quality. Here's why, and what providers can do about it.

Bar chart showing annualized alpha decay for commercial LLMs versus point-in-time models in the Look-Ahead-Bench benchmark

Your LLM’s alpha might be mere memorization

Commercial LLMs can generate impressive backtest alpha — until the test window moves past their training cutoff. What looks like edge may just be memorization.

ALTERNATIVE DATA DATA SCIENCE FINANCIAL DATA CREDIBILITY

Non-PIT data leads to great in-sample results which often fail in live trading.

Why quants pay more for point-in-time data

Quant investors pay up for verified, point-in-time data, because only PIT can recreate the past faithfully and turn backtests into real trading edge.

ALTERNATIVE DATA DATA SCIENCE POINT-IN-TIME

Whose data is worth more?

Data with validated provenance is worth more. A lot more in some cases

DATA SCIENCE QUANT DATA

Stop using brokerage statements to show your track record

Many traders use brokerage statements to create a verifiable track record. Unfortunately they are not credible for this purpose. A better alternative exists.

DATA INTEGRITY DATA SCIENCE TOP