Ryerson Short Interest Jumps 28% in a Week

RYZ shares have climbed 24% over the past month to $29.67, yet short sellers have been adding positions at a notable pace: short interest rose 28.5% in the week to October 27, reaching 4.7% of free float, equivalent to roughly 1.51 million shares. The build is concentrated in the past two sessions, with shorts up less than 1% on the day following a sharp jump from around 1.20 million shares earlier in the week. Borrow costs remain low at 0.42%, up 38% on the week but still well within ordinary territory. Availability is extremely loose at over 3,200%, meaning shares to borrow remain plentiful relative to existing short positions.

Options positioning tells a different story from the short book. The put/call ratio has collapsed to 0.004, more than one standard deviation below its 20-day average of 0.31, placing it near the bottom of its 52-week range. Calls are overwhelming puts by an extreme margin heading into today's print, which aligns with the strong recent price performance rather than with the simultaneous build in short interest. The divergence between heavy call positioning and rising short interest is the unusual feature of the setup.

The institutional register shows some notable flows. Franklin Templeton filed a Schedule 13G amendment on October 28, disclosing a 5.7% stake, down from 7.3% previously. BlackRock trimmed from 8.5% to 6.6% in an April filing. Platinum Equity, an earlier large holder, reported 3.7% in August after a reduction of 2 million shares in the prior quarter. Against that backdrop of institutional selling, Dimensional Fund Advisors initiated a fresh 5.2% position in July. Insider activity has been limited: the only open-market transaction in the past 90 days was a 500-share planned sale by the CAO under a pre-arranged 10b5-1 plan, carrying little informational weight. The one previous earnings print with reaction data, from July 30, saw the stock fall 3.5% on the day and 6.6% over the following five sessions.

The print will test whether the 24% one-month rally in a mid-cap steel distributor can be supported by the underlying revenue and margin numbers at a moment when short sellers are rebuilding positions even as call buyers lean the other way.