OPEN0 OPEN

Open price d days ago over latest close

Formula

$open/$close

The expression above is verbatim from qlib Alpha158/360 feature engineering (qlib/contrib/data/loader.py, Apache-2.0). The platform qlib-compatible expression engine evaluates it on the deterministic research panel.

Cross-section statistics & information coefficient

IC mean (60M)
0.0194
ICIR
0.280
Cross-section mean
0.9996
Cross-section std
0.0184
Min
0.9370
Max
1.0610

IC = Spearman-style rank correlation between the factor cross-section and next-month returns, computed over the last 60 months on the deterministic research panel.

Data export

alpha158.json