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Olin Corporation (OLN) short interest & options flow

NYSE

Olin Corporation reports Q3 results today with short sellers at their most aggressive in at least a year, even as the stock has stabilised near multi-year lows. Short interest has climbed to 14.7% of the free float, up 46% over the past month and 8% in the past week alone. That is a sustained build, not a spike: looking at the daily history, positions have risen almost continuously…

Latest pulse19 Jun 2026

OLN put-call ratio crashes to 0.37, nearly 4 standard deviations below 20-day mean of 0.65—extreme bullish options signal after week of heavy short buildup.

$18.15+3.13% 1d+13.86% 1w+14.15% 1mClose: 2 Nov 2026
Short interest % of float
High
Live SI on ORTEX →
Cost to borrow
Low
Live CTB on ORTEX →
Market cap
$2.00B
Next earnings
28 Jan 2027
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Key data as of 4 Nov 2026

ORTEX chart of Olin Corporation (OLN) share price and short interest (% of free float), six months to November 2, 2026

OLN news and analysis

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Earnings PreviewOLN

Short Sellers Exit as Olin Heads Into a Tough Q1

Olin Corporation reports Q1 2026 results on May 1 with short sellers in full retreat — yet the stock still can't catch a bid. The most striking positioning move heading into the print is the collapse in short interest.…

1 min read

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