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Alcon (ALC)

Alcon on one page: short interest, daily short volume, fails to deliver, planned sales, 13F holders and financials. Listed on NYSE, classified by the SEC as ophthalmic goods.

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17.9M

Short interest

settlement 2026-09-30

9.3

Days to cover

-1.9 days vs prior

46.9%

Short share of volume

2026-10-09

85,771

Fails to deliver

settlement 2026-09-11

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in ALC is 17,875,463 shares, up 3,308,845 shares over the last month. Over the last 48 readings it ranged from 2,070,181 shares (14 March 2025) to 17,875,463 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 1.9M shares a day that is 9.3 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-3017,875,463+2.2%1,912,2639.35
2026-09-1517,487,148+20.1%1,553,86011.25
2026-08-3114,566,618+22.8%1,158,59112.57
2026-08-1411,865,695-13.1%2,219,8395.35
2026-07-3113,658,171+5.0%2,253,3866.06
2026-07-1513,005,560+25.2%2,428,5295.36
2026-06-3010,385,331+20.4%1,901,4355.46
2026-06-158,622,220+52.9%1,729,6384.98
2026-05-295,637,580-5.7%2,628,2592.14
2026-05-155,977,239+11.3%2,926,7512.04
2026-04-305,367,916+4.3%1,401,4463.83
2026-04-155,146,734+5.1%1,415,2103.64
2026-03-314,896,217+1.6%1,479,4873.31
2026-03-134,820,959-9.0%1,499,8353.21
2026-02-275,297,253-17.8%2,155,0842.46
2026-02-136,444,577-14.9%2,194,7402.94
2026-01-307,576,851+12.9%1,349,0025.62
2026-01-156,710,711-3.5%1,384,6924.85
2025-12-316,950,885+6.5%945,2177.35
2025-12-156,523,852+5.8%1,556,4644.19
2025-11-286,164,426+15.3%1,877,6673.28
2025-11-145,386,672-20.8%2,974,7751.81
2025-10-316,801,187+13.4%1,680,7454.05
2025-10-155,999,089+10.9%2,678,2852.24

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of ALC volume is 46.9%, down 3.7 points over the last five sessions. Over the last 30 readings it ranged from 40.9% (1 October 2026) to 80.7% (1 September 2026). The latest reading is 14.7 points below the 30-session average of 61.6%, on 455K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-09213K455K46.9%1,136
2026-10-08268K446K60.2%1,877
2026-10-07344K594K57.9%677
2026-10-06597K892K67.0%1,046
2026-10-05279K425K65.8%2,992
2026-10-02213K421K50.6%0
2026-10-01382K934K40.9%0
2026-09-30222K456K48.7%318
2026-09-29266K541K49.2%155
2026-09-28374K795K47.0%2,340
2026-09-25464K868K53.4%1,323
2026-09-24365K690K52.9%1,676
2026-09-23235K406K57.8%452
2026-09-22152K301K50.5%1,576
2026-09-21227K414K54.9%189
2026-09-18939K1.2M78.9%19,115
2026-09-17496K774K64.1%865
2026-09-16333K642K52.0%813
2026-09-15316K646K49.0%1,322
2026-09-14359K597K60.2%1,300
2026-09-11397K569K69.8%2,558
2026-09-10520K659K78.9%409
2026-09-09658K829K79.3%3,574
2026-09-08520K660K78.8%1,525
2026-09-04418K587K71.2%5
2026-09-03178K306K58.1%1,420
2026-09-02274K363K75.6%4,256
2026-09-01304K377K80.7%0
2026-08-31281K373K75.3%0
2026-08-28259K362K71.8%2,295

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 11 September 2026, the fails-to-deliver balance in ALC is 85,771 shares, up 64,611 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (4 August 2026) to 266,027 shares (13 July 2026).

SettlementShares failedPriceValue
2026-09-1185,771$66.55$5.7M
2026-09-1021,160$68.43$1.4M
2026-09-0929,629$69.12$2.0M
2026-09-086$70.50$423
2026-08-31103$72.01$7K
2026-08-28132$72.23$10K
2026-08-2727,919$72.67$2.0M
2026-08-257$73.70$516
2026-08-2480$73.63$6K
2026-08-2151,597$72.93$3.8M
2026-08-1910,174$73.55$748K
2026-08-14145$73.52$11K
2026-08-13698$73.58$51K
2026-08-1212,471$75.35$940K
2026-08-111,013$73.63$75K
2026-08-0766$69.54$5K
2026-08-05223,631$70.99$15.9M
2026-08-046$70.21$421
2026-08-03110$68.94$8K
2026-07-2943$69.11$3K
2026-07-283,751$67.28$252K
2026-07-239,075$67.35$611K
2026-07-2243,921$67.35$3.0M
2026-07-171,126$70.62$80K
2026-07-16304$68.50$21K
2026-07-15189,360$66.86$12.7M
2026-07-14827$69.00$57K
2026-07-13266,027$67.81$18.0M
2026-07-10117,965$67.14$7.9M
2026-07-0947,072$66.56$3.1M

Planned sales (Form 144)

Newest first. JSON

2 Form 144 notices on file for ALC worth $1.5M at the prices reported; 0 in the last 90 days worth $0. Latest: Duplan Sergio filed on 2026-02-26 to sell 15,000 shares ($1.3M) from 2026-02-26.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-02-26Duplan SergioOfficer15K$1.3M0.003%2026-02-26Fidelity Brokerage Services LLC
2026-02-26Attias LaurentOfficer2K$210K0.000%2026-02-26Fidelity Brokerage Services LLC

13F holders

Tracked managers holding ALC at their latest 13F. JSON

6 of the 30 tracked managers held ALC at their latest 13F, $211.7M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $124.7M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
D. E. Shaw & Co.2026-06-301.9M$124.7M0.06%+697K
Two Sigma Investments2026-06-30455K$30.5M0.02%-131K
AQR Capital Management2026-06-30424K$28.4M0.01%+194K
Citadel Advisors2026-06-30395K$26.5M0.00%-532K
Millennium Management2026-06-3019K$1.2M0.00%-88K
Fisher Asset Management2026-06-305K$342K0.00%-875

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q4 FY 2010 (quarter ended 2010-12-31) Alcon reported revenue of $1.81B, up 5.7% from the same quarter a year earlier (1.71 diluted EPS). In FY 2010 it generated $2.38B of operating cash flow and spent $33.0M on buybacks and $1.04B on dividends. As of 2010-12-31, cash was $2.52B against $0 of debt.

Cash
$2.52B
Debt
$0
Total assets
$10.07B
Shares outstanding
487,427,920

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q4 FY 20102010-12-31$1.81Bn/an/a1.71
Q3 FY 20102010-09-30$1.76Bn/an/a1.47
Q2 FY 20102010-06-30$1.89Bn/an/a2.21
Q1 FY 20102010-03-31$1.72Bn/an/a1.89
Q4 FY 20092009-12-31$1.72Bn/an/a1.51
Q3 FY 20092009-09-30$1.61Bn/an/a1.71
Q2 FY 20092009-06-30$1.68Bn/an/a1.94
Q1 FY 20092009-03-31$1.49Bn/an/a1.51

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20102010-12-31$7.18Bn/a$2.38B$309.0M$33.0M$1.04B
FY 20092009-12-31$6.50Bn/a$2.42B$342.0M$7.0M$1.05B
FY 20082008-12-31$6.29Bn/a$2.03B$302.0M$127.0M$749.0M
FY 20072007-12-31$5.60Bn/a$1.47B$227.0M$1.00B$613.0M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2010-12-31; shares outstanding as of 2025-12-31 from the cover page.

What this page is

Alcon in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Alcon (ALC), SEC CIK 1167379, listed on NYSE, classified by the SEC as ophthalmic goods. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-02-26.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2010-12-31.JSON and CSV
Company record
EDGAR filing index for CIK 1167379Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as ophthalmic goods

Other company pages

Datasets

Frequently Asked Questions

How much of ALC is sold short?
17,875,463 shares were held short at the 2026-09-30 settlement, 9.3 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is ALC's daily short volume?
On 2026-10-09, 213,328 of the 454,785 ALC shares reported to FINRA were sold short, 46.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ALC have fails to deliver?
The SEC's latest file shows 85,771 ALC shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.
Are ALC insiders buying or selling?
No Form 4 filings for ALC are on record.
Have ALC insiders filed to sell?
2 Form 144 notices on file for ALC worth $1.5M at the prices reported; 0 in the last 90 days worth $0. Latest: Duplan Sergio filed on 2026-02-26 to sell 15,000 shares ($1.3M) from 2026-02-26.
What did ALC report last quarter?
In Q4 FY 2010 (quarter ended 2010-12-31) Alcon reported revenue of $1.81B, up 5.7% from the same quarter a year earlier (1.71 diluted EPS). In FY 2010 it generated $2.38B of operating cash flow and spent $33.0M on buybacks and $1.04B on dividends. As of 2010-12-31, cash was $2.52B against $0 of debt.
Which tracked 13F managers own ALC?
6 of the 30 tracked 13F managers held ALC shares at their latest filing, $211.7M in all. The largest: D. E. Shaw & Co. (1.9M shares, $124.7M), Two Sigma Investments (455K shares, $30.5M), Cliff Asness's AQR Capital Management (424K shares, $28.4M), Ken Griffin's Citadel Advisors (395K shares, $26.5M), Izzy Englander's Millennium Management (19K shares, $1.2M), Ken Fisher's Fisher Asset Management (5K shares, $342K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.