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NASDAQ · OSISTechnologySemiconductors

OSI Systems Inc (OSIS)

$202.19+0.62%
Close Nov 4, 2026 · split-adjusted
Nov 3, 2026$203.68▼ 27.54% in range
Nov 3, 2025Low $192.30 · High $309.68Nov 3, 2026
What changed · written from our data
As of Nov 4, 2026

OSI Systems closed at $202.19 on Nov 4, up 0.62%, 34.7% below its 52-week closing high. Volume of 63.5K shares was 0.30× its 20-day average (below normal).

Split-adjusted performance: +1.8% over one month, -15.8% over six months, -28.1% over one year.

In the quarter ended Sep 30, 2026, revenue was $403.47M, up 4.9% from a year earlier, with a net margin of 6.1%.

Short interest was 2.0M shares at the Oct 15 settlement, down 3.4% from the prior report (13.3% of float, 12.3 days to cover).

Market cap$3.18B15.7M shares
Revenue · quarter$403.5M+4.9% YoY
Diluted EPS$1.51+28.0% YoY
P/E · TTM20.0×P/S 1.8×
Net margin6.1%Gross 30.7%
Dividend yieldNone
52-week range192.30 – 309.68−34.7% from high
Volume63.5K0.30× 20-day avg
Volatility · 60d26.7%Annualised
Short % of float13.3%12.3 days to cover
Net cash-$697.6MCash $302.0M
Next earnings—Not scheduled
Split-adjusted performance
1W +0.8%1M +1.8%3M −14.7%6M −15.8%YTD −20.7%1Y −28.1%3Y +92.6%5Y +113.3%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Semiconductors

Percentile among 83 companies (100 = best)

6-month momentum72
Revenue growth26
Net margin43
Value (low P/E)80
Size49

Industry medians: 6-month return −31.4%, revenue growth +24.6%, net margin 8.1%, P/E 47.2×.

Short interest

Details →
Shares short2.0M−3.4% vs prior
Days to cover12.3Settled Oct 15
% of float13.3%
Short vol. 10d50.4%of daily volume

Closest peers by size in Semiconductors

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
OSISOSI Systems$202.19+0.62%−15.8%+4.9%6.1%20.0$3.18B
AXTIAXT$46.27−9.86%−55.9%+164.8%23.4%748.4$3.03BCompare
IPGPIPG Photonics$69.97−5.98%−31.4%+11.1%1.9%108.0$2.98BCompare
KLICKulicke & Soffa Industries$68.24−5.80%−27.2%+122.6%17.4%30.9$3.57BCompare
DIODDiodes$79.55−5.57%−31.5%+21.7%10.5%42.6$3.66BCompare
AMBAAmbarella$61.53−0.76%−18.5%+13.2%−6.2%—$2.72BCompare
VSHVishay Intertechnology$25.73−5.47%−23.3%+16.6%3.2%139.0$3.95BCompare
POWIPower Integrations$45.79−2.55%−41.5%+2.7%8.3%102.1$2.56BCompare
PENGPenguin Solutions$49.06−7.76%+25.8%+67.7%14.3%16.6$2.51BCompare

News about OSI Systems

All news →
Why OSI Systems (OSIS) is a Top Momentum Stock for the Long-TermZacks Investment Research · 1d ago▲ PositiveOSI Systems (OSIS) Tops Q1 Earnings and Revenue EstimatesZacks Investment Research · 6d ago▲ PositiveCompared to Estimates, OSI (OSIS) Q1 Earnings: A Look at Key MetricsZacks Investment Research · 6d ago▲ PositiveOSIS vs. WEGZY: Which Stock Is the Better Value Option?Zacks Investment Research · Oct 23, 2026▲ PositiveZacks Industry Outlook Highlights TE Connectivity, Vicor and OSI SystemsZacks Investment Research · Oct 23, 2026▲ Positive

Quick answers

What does OSI Systems do?
OSI Systems Inc is a designer and manufacturer of electronic systems and components for businesses in the homeland security, healthcare, defense, and aerospace markets. The firm is organized in three business segments: Security, which derives maximum revenue, provides security and inspection systems; Healthcare, which provides patient monitoring, diagnostic, cardiology, ventilation systems, and defibrillators; and Optoelectronics and Manufacturing, which provides specialized electronic components and manufacturing services for the Security and Healthcare segments and external original equipment manufacturers.
What is OSIS's market cap?
$3.18B, based on the Nov 4 close of $202.19.
What is OSIS's P/E ratio?
20.0× trailing-twelve-month earnings of $158.73M.
Does OSI Systems pay a dividend?
No regular cash dividend has been paid in the last year.
How much of OSIS is sold short?
2.0M shares, 13.3% of float, as of Oct 15, 2026.
What sector is OSIS in?
Technology, in the Semiconductors industry.

About OSI Systems

OSI Systems Inc is a designer and manufacturer of electronic systems and components for businesses in the homeland security, healthcare, defense, and aerospace markets. The firm is organized in three business segments: Security, which derives maximum revenue, provides security and inspection systems; Healthcare, which provides patient monitoring, diagnostic, cardiology, ventilation systems, and defibrillators; and Optoelectronics and Manufacturing, which provides specialized electronic components and manufacturing services for the Security and Healthcare segments and external original equipment manufacturers. Geographically, the majority of the firm's revenue is generated in the United States, and the rest from Mexico, Europe, the Middle East and Africa, and the Asia Pacific regions.

HQ: Hawthorne, CA7,806 employeesListed Oct 2, 1997osi-systems.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology