Compare edges. Two named assets (?a=ETH&b=BTC): the relative-strength / pairs-trade read- when one leg sits near the top

Compare edges. Two named assets (?a=ETH&b=BTC): the relative-strength / pairs-trade read- when one leg sits near the top of its own recent range while the other sits near its bottom, the spread is stretched and mean-reversion favors LONG the laggard / SHORT the leader- plus each leg's own directional edge. One asset (?a=SPCX): its edge RANK across the whole cross-category field and the single strongest market edge right now (is X better than any market?). Full details: GET /v1.