Reading your collection against a benchmark
Benchmark your collection.
A pair up 8% sounds good — until you find out the market was up 15%.
A pair up 8% sounds good, until you find out the whole market was up 15% and everything else was outperforming yours. A single price change means very little on its own — it needs something to be measured against.
That's what a benchmark is for. The CYKI 100 gives your collection something real to be read against: not "is this pair up," but "is my collection doing better or worse than the market broadly." CYKI's Beat the Market view puts your collection's return next to the index's return directly, so the comparison isn't something you have to calculate by hand from a dozen separate listings.
It cuts both ways, honestly — a rack that's down can still be beating a market that's down more, and a rack that's up can still be lagging a market that's up faster. The benchmark is what tells you which one is actually true.
Beat the Market runs in seasons rather than as one accumulating all-time score, so the comparison resets on a cadence — a fresh read on how your picks are doing against the field, not a number that just keeps growing more meaningless the longer you've owned a pair.