IEX options swing to put-heavy as the call trade unwinds before earnings

IDEX Corporation arrives at its October 28 earnings report with options positioning having reversed sharply in just three trading sessions, from the most call-heavy reading in a year to a put/call ratio running more than two standard deviations above its 20-day norm.

That reversal is the most striking change in the data since the previous note published October 21, which flagged the put/call ratio at 0.044, the lowest in 52 weeks. The ratio has since climbed to 0.60 and was at 0.76 intraday on October 22, pushing the z-score to 2.28 against a 20-day mean of 0.19. The 52-week high is 1.87, so the swing is not yet extreme in absolute terms, but the speed of the move from a year-low call position to a well-above-average put position in three days reflects genuine repositioning rather than drift. The stock gave back some ground in the process, pulling back a further 1.7% over the past week to $229.05, against a mixed peer group: DOV gained 1.7% and ESAB added 2.4%, while IR fell 5.5% and LECO slipped 2.3%.

Short interest is not the driver here. Shares short amount to 3.15% of the free float, essentially unchanged on the week, with borrowing costs at 0.34% and availability deep in surplus. Nothing in the lending market points to fresh conviction on the short side.

The analyst backdrop remains constructive. Oppenheimer raised its target to $275 on October 21, maintaining its Outperform rating, and RBC lifted to $285 the week before. The consensus mean target is $257, above but not dramatically so from the current price. The bull case centres on HST segment orders up 28% year on year in Q2, data centre and semiconductor exposure, 103% free cash flow conversion, and a $1.1 billion liquidity cushion. Bears focus on limited short-cycle visibility, a projected 70 basis point year-on-year EBITDA margin contraction at the Q3 midpoint from tariff timing and corporate cost headwinds, and a valuation of around 22x forward earnings that leaves little room for a miss.

The last print, on July 29, produced a 4.1% gain on the day and 5.5% over the following five days, after IDEX hiked full-year adjusted EPS guidance to $8.70 to $8.85. The October 28 report will test whether the company can show Q3 margin delivery consistent with that raised guidance, given the put-buying that has appeared in the final days before the number.