The five-component grade

what an “A” is actually made of · How the app turns all of this into a grade

Every letter grade (A down to C−) blends five scores, each 0–100: Value (is it cheap versus its worth?), Trend (is the long-term chart up?), Entry/timing (is now a reasonable moment?), Rating (what does analyst consensus say?), and Quality (is the business durable — high returns, low debt, real cash?). Each list weights them differently on purpose — Quality Value leans on Value, Parabolic leans on trend and momentum.

If data for a component is missing, that piece drops out and the grade is pulled toward a neutral 50 in proportion to what’s missing — so a name graded on two factors can never outrank one graded on all five.

composite = Σ (weightᵢ × scoreᵢ)      over the 5 components
shrunk = 50 + (composite − 50) × (0.5 + 0.5 × coverage)

scoreᵢ

— the 0–100 score of one component (value, trend, entry, rating, quality)

weightᵢ

— how much that component counts on this list (the weights sum to 1)

coverage

— the share of input data that was actually available (see below)