Tag Archives: Cointegration

OU Half-Life Filter for Pair Trading

April 26, 2026 9:52 am |
Faster Reversion = Better Profits in PairTrade Finder® UA3

One of the biggest hidden risks in pair trading isn’t finding a cointegrated relationship. It’s trading a pair that reverts too slowly to be profitable before costs, time decay, or market drift eat your edge.

That’s exactly why we’re adding the OU Half-Life Filter to PairTrade Finder® Ultimate Alpha 3. It’s a simple, powerful new layer that tells you how fast a spread will snap back — so you only trade the pairs that can actually make money in real-market conditions.

OU Half-Life Filtering in Pair Trading

Why Many Pairs Fail in Live Trading (Even If They Pass Backtests)

You run the scanner.

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Kalman Filters vs. PairTrade Finder®

March 26, 2026 3:38 pm |
Why We Keep It Simple (On Purpose) Kalman filters

From time to time, experienced traders reach out and ask:

“Why doesn’t PairTrade Finder® use a Kalman filter to calculate dynamic hedge ratios?”

It’s a fair question. Kalman filters are widely used in quantitative finance and are often presented as a more advanced way to trade pairs.

So this post explains our thinking clearly.

PairTrade Finder® is designed to capture most of the statistical edge—without the complexity that often reduces real-world performance.

In practice, as a rule we seek to target a platform that delivers 80% of the benefit of institutional grade models with around 20% of the complexity.

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The Stock Pair Trading Strategy and the Secret of Cointegration

April 12, 2020 9:39 am |

Learn one of the best-kept hedge fund secrets for deploying the stock pair trading strategy – cointegration.  Used by professionals for over 50 years to deliver consistent monthly profits from stock trading, regardless of market direction. It also carries the additional benefit of protection from market crashes and big account drawdowns through the use of hedging.

Click here to watch our video that explains it all:

stock pair trading strategy

Combining Cointegration and Stock Pair Trading for a Winning Combination

Professional traders and hedge fund managers love to use the stock pair trading strategy.  

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