Long UNH, short LLY, same sector: $1 of UNH against $0.75 of LLY, sized so that a typical day moves each leg by about the same amount. The spread is -15.8% over the last 120 sessions, -9.1% over the last 20, and today's level sits at the 3rd percentile of its own path, deeply compressed, narrowing over the last ten sessions. Alpha 50 against 90, a gap of -40 points (-40 ten sessions ago). Net market exposure at this sizing: +0.17, a clean relative bet. The two are co-movers on the desk's own test.
Not on the desk's list as of Nov 10, three sessions behind. Pro sees today's list.
The last 7 times these two sat this far below their one-year average, 2 closed half the gap within ten sessions: a spread that has tended to keep going. LLY leads (Alpha 90); UNH is not a fresh riser (Alpha 50).
One line of your account split $1 : $0.75 across the legs at the last close (UNH $404.00, LLY $1431.00); fractions included. Arithmetic on a setting you choose, not a recommendation.
The house book has not closed a trade in this pair.
The house takes every listed cycle pair by the rules, after average trading costs; its full record is on the engine page. Pairs you assemble yourself are ideas, not posted trades: the Hedge pairs chapter says how the two differ.
Each leg against its sector fund, and each leg's true peers.
How to read it: the spread is what $1 long UNH and $0.75 short LLY would have made together, in percent of the long leg, close to close, before costs; the market's move cancels in it to the extent the two legs share it. Stretch is where today's level sits among the last 120 sessions of that path, a description of the spread's own history and not a forecast. Net β is the pair's remaining market exposure per $1 long at this sizing (each leg's beta over 250 sessions). The pages for UNH and LLY carry each leg on its own.