Sigma Healthcare (ASX:SIG) Shares Drift As Margin Compression Tempers Profit Growth - simplywall.st
Sigma Healthcare (ASX:SIG) Shares Drift As Margin Compression Tempers Profit Growth simplywall.st
Everything you need to track shorting on the ASX — official ASIC short selling data updated daily with T+4 delay. Follow the most shorted ASX stocks, analyze short interest trends, and explore industry heatmaps.
ASIC short position data as at (T+4 reporting delay)
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Stocks with the biggest short position changes
Over the past week of ASIC short position data to 21 August, short sellers built their largest new positions in Zip Co (ZIP, up 1.84 percentage points to 10.00% of shares on issue), IPH (IPH, up 1.36pp to 8.93%) and Lendlease Group (LLC, up 0.86pp to 7.24%). Rising short interest signals growing bearish conviction against a stock among hedge funds and institutional investors.
On the other side of the ledger, shorts covered most heavily in Lotus Resources (LOT, down 3.57 percentage points to 13.62% of shares on issue), Healius (HLS, down 1.25pp to 8.88%) and Boss Energy (BOE, down 0.58pp to 9.99%). Falling short interest can mean the bear case has played out — or that short sellers are locking in profits and reducing exposure.
Track every position change in the stock screener or browse the top 100 most shorted ASX stocks.
Explore short positions across 25 ASX industry sectors

Glaucus, Bonitas, VGI. A short report can take a third off an ASX company in a session, and Australian outcomes have run the full range from vindication to a Supreme Court finding of misleading conduct. Here's what activist shorting is, what ASIC's INFO 255 asks of everyone involved, and how the landmark campaigns actually resolved.

Australian reporting season compresses hundreds of results into a few weeks in February and August. For heavily shorted stocks it is the window where a thesis either gets confirmed or gets run over, and ASIC's four-day reporting lag means you watch the covering arrive after the fact. Here is how the season works and how to read short data through it.

Short interest on the ASX is not spread evenly. It piles into materials, energy and a handful of consumer and healthcare names, and it rotates as commodity cycles turn. Here's how sector-level short interest is actually constructed, what drives it, and how to read the industry view without being misled by a handful of microcaps.
All short position data is sourced directly from ASIC (Australian Securities and Investments Commission) daily reports. We track over 4,500 ASX-listed securities with historical data from 2010 to present — the top 100 short positions on the ASX, with interactive historical charts and industry sector breakdowns.
ASIC publishes short position data with a 4 trading day delay to balance market transparency with preventing potential manipulation. Data shown reflects positions from 4 trading days ago, not real-time figures.
View interactive historical charts, industry heatmaps, and weekly reports. Screen stocks by short interest, days to cover, director trades, and news sentiment. Track short interest trends, identify heavily shorted companies, and monitor bearish sentiment across the Australian market.
Go deeper: ASX short selling statistics — total dollars shorted, daily short interest scans, the top 100 most shorted ASX stocks, or the full list of ASX short positions.
New to this? Learn how short selling works on the ASX, keep the short selling glossary handy, then read the weekly ASX short selling reports.
| Rank | Code | Company | Short Interest % |
|---|---|---|---|
| 1 | DRO | Droneshield | 14.93% |
| 2 | LOT | Lotus Resources | 13.62% |
| 3 | DMP | Domino's Pizza Enterprises | 12.46% |
| 4 | 4DX | 4Dmedical | 12.28% |
| 5 | CAR | Car Group | 12.13% |
| 6 | TWE | Treasury Wine Estates | 12.04% |
| 7 | PDN | Paladin Energy | 11.39% |
| 8 | PLS | PLS Group | 10.92% |
| 9 | FLT | Flight Centre Travel Group | 10.84% |
| 10 | TLX | Telix Pharmaceuticals | 10.55% |
| 11 | ELD | Elders | 10.54% |
| 12 | LYC | Lynas Rare Earths | 10.25% |
| 13 | ZIP | Zip Co | 10.00% |
| 14 | BOE | Boss Energy | 9.99% |
| 15 | IPX | Iperionx | 9.84% |
| 16 | GMD | Genesis Minerals | 9.51% |
| 17 | DYL | Deep Yellow | 9.43% |
| 18 | RIO | Rio Tinto | 9.34% |
| 19 | BAP | Bapcor | 9.20% |
| 20 | COH | Cochlear | 9.02% |
| 21 | IPH | IPH | 8.93% |
| 22 | HLS | Healius | 8.88% |
| 23 | PNV | Polynovo | 8.74% |
| 24 | WTC | Wisetech Global | 8.49% |
| 25 | EOS | Electro Optic Systems Holdings | 8.30% |
| 26 | CUV | Clinuvel Pharmaceuticals | 8.30% |
| 27 | CU6 | Clarity Pharmaceuticals | 8.29% |
| 28 | EDV | Endeavour Group | 8.26% |
| 29 | BRG | Breville Group | 8.25% |
| 30 | SLX | Silex Systems | 8.21% |
| 31 | BPT | Beach Energy | 8.20% |
| 32 | SHL | Sonic Healthcare | 8.11% |
| 33 | A4N | Alpha Hpa | 7.95% |
| 34 | NXT | Nextdc | 7.65% |
| 35 | A2M | The A2 Milk Company | 7.65% |
| 36 | GYG | Guzman Y Gomez | 7.58% |
| 37 | VUL | Vulcan Energy Resources | 7.33% |
| 38 | MSB | Mesoblast | 7.30% |
| 39 | LLC | Lendlease Group | 7.24% |
| 40 | ORA | Orora | 7.00% |
| 41 | BMN | Bannerman Energy | 6.90% |
| 42 | LIC | Lifestyle Communities | 6.89% |
| 43 | CAT | Catapult Sports | 6.84% |
| 44 | DVP | Develop Global | 6.81% |
| 45 | ILU | Iluka Resources | 6.62% |
| 46 | JIN | Jumbo Interactive | 6.57% |
| 47 | NAN | Nanosonics | 6.42% |
| 48 | TPW | Temple & Webster Group | 6.22% |
| 49 | DGT | Digico Infrastructure Reit | 6.20% |
| 50 | CIA | Champion Iron | 6.03% |
| 51 | ING | Inghams Group | 5.90% |
| 52 | SGP | Stockland | 5.81% |
| 53 | ACL | Australian Clinical Labs | 5.76% |
| 54 | NCK | Nick Scali | 5.71% |
| 55 | HMC | HMC Capital | 5.68% |
| 56 | ARB | ARB | 5.66% |
| 57 | ASX | ASX | 5.59% |
| 58 | RHC | Ramsay Health Care | 5.54% |
| 59 | PNI | Pinnacle Investment Management Group | 5.50% |
| 60 | CTD | Corporate Travel Management | 5.36% |
| 61 | FFM | Firefly Metals | 5.29% |
| 62 | AGL | AGL Energy | 5.28% |
| 63 | TLC | The Lottery | 5.21% |
| 64 | PXA | Pexa Group | 5.19% |
| 65 | MI6 | Minerals 260 | 5.12% |
| 66 | XRO | Xero | 4.97% |
| 67 | GEM | G8 Education | 4.94% |
| 68 | NHC | New Hope | 4.86% |
| 69 | SBM | St Barbara | 4.82% |
| 70 | JBH | Jb Hi-Fi | 4.67% |
| 71 | PWH | Pwr Holdings | 4.55% |
| 72 | IEL | Idp Education | 4.50% |
| 73 | CYL | Catalyst Metals | 4.41% |
| 74 | PME | Pro Medicus | 4.34% |
| 75 | MIN | Mineral Resources | 4.28% |
| 76 | AUB | Aub Group | 4.27% |
| 77 | BEN | Bendigo and Adelaide Bank | 4.26% |
| 78 | TYR | Tyro Payments | 4.25% |
| 79 | NEU | Neuren Pharmaceuticals | 4.24% |
| 80 | EVN | Evolution Mining | 4.24% |
| 81 | KAR | Karoon Energy | 4.21% |
| 82 | MYR | Myer Holdings | 4.19% |
| 83 | GNC | Graincorp | 4.06% |
| 84 | REA | Rea Group | 3.98% |
| 85 | AOV | Amotiv | 3.83% |
| 86 | JHX | James Hardie Industries | 3.71% |
| 87 | MTS | Metcash | 3.69% |
| 88 | SUL | Super Retail Group | 3.68% |
| 89 | LTR | Liontown | 3.66% |
| 90 | EVT | EVT | 3.64% |
| 91 | PNR | Pantoro Gold | 3.62% |
| 92 | GDG | Generation Development Group | 3.62% |
| 93 | PDI | Predictive Discovery | 3.60% |
| 94 | ELV | Elevra Lithium | 3.56% |
| 95 | BOQ | Bank of Queensland | 3.51% |
| 96 | SOL | Washington H. Soul Pattinson and Company | 3.41% |
| 97 | UNI | Universal Store Holdings | 3.37% |
| 98 | SIG | Sigma Healthcare | 3.36% |
| 99 | SNL | Supply Network | 3.36% |
| 100 | WDS | Woodside Energy Group | 3.34% |
Yes. Short selling is legal in Australia and regulated by ASIC, the Australian Securities and Investments Commission, which requires market participants to report their net short positions. Naked short selling — selling shares without first arranging to borrow them — is prohibited under section 1020B of the Corporations Act 2001.
Short interest is the total number of shares held short in a stock, usually expressed as a percentage of the company's total shares on issue. On the ASX, below 5% is normal, 10-15% is elevated, and above 20% signals extreme bearish positioning and potential short squeeze pressure.
ASIC publishes aggregated short positions with a T+4 trading day delay, so each report reflects positions held four trading days earlier. The delay gives ASIC time to compile accurate figures, protects reporters from being front-run, and limits the scope for market manipulation.
You borrow the shares through a broker with a securities lending arrangement in place, sell them at the current price, then buy them back later — profiting if the price has fallen. Covered short selling is the only legal form in Australia, and losses are theoretically unlimited if the price rises instead. Read the full guide to shorting the ASX.
More answers in the short selling FAQ, or work through the short selling guides in Learn.