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OSI Systems enters the final stretch before its October 23 earnings report with short sellers holding their ground and the Street trimming targets, even as bulls maintain their ratings.
Short interest has eased slightly from its recent peak but remains elevated. Bears pulled back about 1% over the past week, bringing short interest to 12.3% of the free float, down from a high of roughly 12.6% earlier in the month but still up 10.7% over the past 30 days. The one-week retreat is modest, not a meaningful unwind. Days to cover remain at 8.23 per FINRA's latest fortnightly data, so any forced exit would take bears well over a week at normal volumes. The ORTEX short score has held in a tight band between 68.9 and 70.2 all month, ranking in just the 3rd percentile of the broader universe, an unusually bearish positioning signal. Borrow conditions offer no friction for new entrants: availability has actually loosened over the week, rising to 235%, well above the 52-week floor of 142%, and cost to borrow has drifted lower to 0.50%. The message from the lending market is that this is a conviction short, not a technical one driven by borrow scarcity.
Options positioning tells a different story from the short book. The put/call ratio of 0.11 is modestly below its 20-day average of 0.11, sitting around 0.6 standard deviations below the mean. That is a mildly call-heavy skew, not a defensive setup. The 52-week high of 7.57 on the PCR shows just how far current positioning is from any genuine hedging episode. Options traders, in aggregate, are not braced for a sharp move lower, even with earnings 15 days out.
Analyst activity this week adds a fresh wrinkle. Oppenheimer's Christopher Glynn cut his price target this morning from $300 to $265, maintaining an Outperform rating. That follows a pattern established in August, when both Oppenheimer and B. Riley trimmed targets after the last print, and B. of A. Securities cut in July. The direction of travel is one-way: every recent analyst move has been a reduction. Yet every firm has kept its positive rating intact. The mean consensus target now stands at $273, against a current price of $194.05, implying roughly 41% upside on paper. At a trailing PE of 15.5x and EV/EBITDA of 11x, the stock is not expensive in absolute terms. The 12-month forward earnings revision score ranks in the 92nd percentile, a top-decile reading that suggests estimates have been moving higher even as targets come down. That divergence, rising earnings revisions alongside falling price targets, captures the bull/bear tension neatly: the business may be improving, but confidence in the multiple has slipped.
The most recent earnings history adds weight to the cautious positioning. The last two prints each produced a next-day decline of roughly 6.4%, with the five-day drift extending losses to around 4.5% to 5.3%. The pattern is consistent: results have not been rewarded, at least not initially. Given that setup, the combination of elevated short interest and a low PCR is harder to reconcile. Either options traders are underpricing the downside risk that short sellers are expressing, or shorts are wrong-footed on a name where the forward earnings momentum is genuinely improving.
Peer context offers limited comfort for the bulls this week. Close correlated names including IPGP, APH, and AEIS each gained 3% to 4% over the past week, while OSIS was essentially flat, down 0.2%. NSSC, the closest security-sector peer, dropped 1.2% on the week. The stock's year-to-date underperformance relative to the electronics and security cohort, noted in previous notes, has not reversed.
With fifteen days until the print, the next test is whether short sellers use the remaining runway to extend positions further into the report or begin trimming ahead of it.
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