LOCAL
Our engine, computing on your source's bars. The default. LOCAL and AGG both feed the weighted score.
AGG
A timeframe your source does not serve, built by folding a shorter one it does. Exact arithmetic — open, high, low, close. Daily bars and everything above them are built too, on the 17:00 New York close: a boundary we chose, and say so.
EXTERNAL
A value your own platform pushes in, shown beside our readings and never in the score. We host the number; the formula stays yours.