greeksoup/ stock research
Stock research / United States / SNPS / Short interest

Synopsys Inc. short interest

6.5M shares of Synopsys were sold short at the 15 October 2026 settlement, the most since 15 Jul 2025. Short sellers would need 2.2 days of normal trading to buy them back.

Shares sold short6.5Mat 15 Oct 2026
Change on the settlement before+30.3%+53% over a year
Days to cover2.18at 3.0M shares a day
Of shares in issue3.38%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is the most since 15 Jul 2025, and the share price moved +3% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20266.5M+30.3%3.0M2.18
    30 September 20265.0M-12.9%2.1M2.41
    15 September 20265.7M+9.6%1.9M3.06
    31 August 20265.2M+19.7%1.9M2.74
    14 August 20264.4M-16.9%1.3M3.36
    31 July 20265.2M-6.5%2.4M2.23
    15 July 20265.6M+3.5%1.3M4.16
    30 June 20265.4M-7.2%2.5M2.20
    15 June 20265.8M+3.5%1.9M3.03
    29 May 20265.6M+9.5%2.3M2.44
    15 May 20265.1M+6.2%1.4M3.58
    30 April 20264.8M+8.3%1.8M2.77
    15 April 20264.5M-7.0%1.5M3.01
    31 March 20264.8M+2.8%2.0M2.42
    13 March 20264.7M+4.3%2.3M2.07
    27 February 20264.5M+2.4%2.4M1.88
    13 February 20264.4M-5.2%2.9M1.52
    30 January 20264.6M-6.7%1.8M2.60
    15 January 20265.0M+8.8%1.8M2.72
    31 December 20254.6M+3.1%1.6M2.79
    15 December 20254.4M-6.0%2.8M1.60
    28 November 20254.7M+11.3%1.8M2.60
    14 November 20254.2M+3.6%2.6M1.65
    31 October 20254.1M-4.0%1.8M2.20
    15 October 20254.2M-12.5%2.3M1.87
    30 September 20254.8M+6.7%4.0M1.21
    15 September 20254.5M+40.4%5.6M1.00
    29 August 20253.2M-19.9%1.0M3.14
    15 August 20254.0M+1.4%1.0M3.87
    31 July 20254.0M-39.1%2.8M1.42
    15 July 20256.5M+32.4%1.9M3.39
    30 June 20254.9M+0.6%1.2M4.19
    13 June 20254.9M+4.3%1.2M4.13
    30 May 20254.7M-3.9%1.8M2.56
    15 May 20254.9M+8.1%940K5.20
    30 April 20254.5M+5.7%1.1M4.18
    15 April 20254.3M-0.5%1.8M2.44
    31 March 20254.3M+8.7%1.2M3.59
    14 March 20254.0M+4.2%1.5M2.58
    28 February 20253.8M+5.9%1.6M2.37
    14 February 20253.6M+2.1%764K4.70
    31 January 20253.5M+16.1%1.2M2.95
    15 January 20253.0M+2.2%996K3.04
    31 December 20243.0M+4.5%1.0M2.94
    13 December 20242.8M-0.3%1.7M1.65
    29 November 20242.8M-0.2%772K3.68
    15 November 20242.8M+9.1%827K3.44
    31 October 20242.6M-1.9%947K2.76
    15 October 20242.7M-7.6%926K2.87
    30 September 20242.9M+7.5%1.0M2.83
    13 September 20242.7M-8.7%1.5M1.81
    30 August 20242.9M+12.5%980K2.99
    15 August 20242.6M-19.3%1.3M2.05
    31 July 20243.2M-15.2%960K3.37
    15 July 20243.8M-4.6%577K6.61
    28 June 20244.0M+0.3%976K4.09
    14 June 20244.0M+5.2%744K5.36
    31 May 20243.8M+10.9%956K3.96
    15 May 20243.4M-3.1%686K4.98
    30 April 20243.5M+6.8%1.0M3.42
    15 April 20243.3M-4.0%800K4.13
    28 March 20243.4M+8.1%1.2M2.85
    15 March 20243.2M-0.8%854K3.73
    29 February 20243.2M-3.3%1.3M2.50
    15 February 20243.3M+10.6%1.1M2.99
    31 January 20243.0M+7.1%1.9M1.59
    12 January 20242.8M+20.5%1.4M1.93
    29 December 20232.3M+13.8%1.2M2.01
    15 December 20232.0M-2.0%1.0M2.01
    30 November 20232.1M+9.1%867K2.40
    15 November 20231.9M+18.1%846K2.25
    31 October 20231.6M-6.5%694K2.33
    13 October 20231.7M+18.1%816K2.12
    29 September 20231.5M-8.3%714K2.05
    15 September 20231.6M+32.3%867K1.84
    31 August 20231.2M+24.8%783K1.54
    15 August 2023967K-5.9%602K1.61
    31 July 20231.0M-6.1%884K1.16
    14 July 20231.1M+10.5%870K1.26
    30 June 2023991K-42.6%1.3M1.00
    15 June 20231.7M-0.0%939K1.84
    31 May 20231.7M+27.4%1.6M1.05
    15 May 20231.4M+0.7%626K2.16
    28 April 20231.3M-13.1%566K2.38
    14 April 20231.5M-3.8%698K2.22
    31 March 20231.6M-14.1%894K1.80
    15 March 20231.9M-1.2%734K2.55
    28 February 20231.9M+21.7%1.0M1.82
    15 February 20231.6M+16.4%813K1.92
    31 January 20231.3M-23.7%614K2.18
    13 January 20231.8M-10.5%640K2.74
    30 December 20222.0M-3.0%792K2.48
    15 December 20222.0M+20.6%1.1M1.85
    30 November 20221.7M-14.1%658K2.55
    15 November 20222.0M+16.9%979K1.99
    31 October 20221.7M-20.6%890K1.87
    14 October 20222.1M+11.7%1.4M1.45
    30 September 20221.9M-22.0%1.2M1.60
    15 September 20222.4M+18.8%1.1M2.12
    31 August 20222.0M+3.2%1.2M1.72
    15 August 20222.0M+3.0%919K2.14
    29 July 20221.9M+15.2%873K2.19
    15 July 20221.7M+3.5%742K2.23
    30 June 20221.6M-11.3%1.1M1.49
    15 June 20221.8M-0.9%766K2.36
    31 May 20221.8M+10.2%1.2M1.50
    13 May 20221.7M+2.5%980K1.69
    29 April 20221.6M+10.0%818K1.97
    14 April 20221.5M+0.3%1.1M1.35
    31 March 20221.5M-7.6%1.1M1.38
    15 March 20221.6M-15.1%1,000K1.58
    28 February 20221.9M+6.9%1.1M1.63
    15 February 20221.7M+3.1%802K2.18
    31 January 20221.7M+37.3%989K1.71
    14 January 20221.2M+5.6%861K1.43
    31 December 20211.2M-4.6%758K1.54
    15 December 20211.2M-14.2%988K1.24
    30 November 20211.4M-7.5%618K2.31
    15 November 20211.5M-10.0%539K2.86
    29 October 20211.7M-12.7%564K3.04
    15 October 20212.0M+11.3%623K3.15
    30 September 20211.8M+12.7%844K2.09
    15 September 20211.6M-0.9%595K2.63
    31 August 20211.6M+2.1%882K1.79
    13 August 20211.5M-0.4%454K3.41
    30 July 20211.6M+10.1%583K2.66
    15 July 20211.4M-10.9%660K2.14
    30 June 20211.6M-0.2%1.0M1.58
    15 June 20211.6M-1.6%603K2.63
    28 May 20211.6M+5.0%1.0M1.56
    14 May 20211.5M+25.7%868K1.77
    30 April 20211.2M-7.3%679K1.80
    15 April 20211.3M-20.2%732K1.80
    31 March 20211.6M-8.7%917K1.80
    15 March 20211.8M+1.2%1.2M1.50
    26 February 20211.8M+5.3%1.1M1.59
    12 February 20211.7M-5.4%553K3.07
    29 January 20211.8M+11.5%625K2.87
    15 January 20211.6M+2.6%631K2.55
    31 December 20201.6M+6.9%659K2.38
    15 December 20201.5M+13.7%810K1.81
    30 November 20201.3M-11.7%696K1.85
    13 November 20201.5M+2.3%707K2.06
    30 October 20201.4M-29.8%521K2.74
    15 October 20202.0M+17.1%557K3.65
    30 September 20201.7M+13.3%716K2.42
    15 September 20201.5M-13.6%794K1.93
    31 August 20201.8M+10.9%925K1.92
    14 August 20201.6M-6.3%583K2.75
    31 July 20201.7M-7.1%582K2.93
    15 July 20201.8M-7.6%702K2.62
    30 June 20202.0M-1.2%936K2.13
    15 June 20202.0M+3.3%946K2.13
    29 May 20201.9M+8.5%1.0M1.91
    15 May 20201.8M-24.9%738K2.43
    30 April 20202.4M-4.9%949K2.52
    15 April 20202.5M-6.1%1.0M2.43
    31 March 20202.7M-28.9%1.5M1.81
    13 March 20203.8M+15.9%1.6M2.33
    28 February 20203.3M+51.0%2.4M1.35
    14 February 20202.2M+22.2%717K3.00
    31 January 20201.8M-20.9%854K2.06
    15 January 20202.2M+4.5%824K2.70
    31 December 20192.1M+17.2%898K2.37
    13 December 20191.8M-2.2%1.3M1.42
    29 November 20191.9M-9.7%1.0M1.83
    15 November 20192.1M+46.2%761K2.70
    31 October 20191.4M-2.3%841K1.67
    15 October 20191.4M-15.6%801K1.80
    30 September 20191.7M+13.5%1.0M1.66
    13 September 20191.5M-3.6%1.2M1.22
    30 August 20191.6M-9.4%1.2M1.26
    15 August 20191.7M-2.1%958K1.80
    31 July 20191.8M-11.3%714K2.46
    15 July 20192.0M+5.0%1.1M1.83
    28 June 20191.9M-4.4%1.6M1.17
    14 June 20192.0M+4.8%1.1M1.76
    31 May 20191.9M-5.8%1.7M1.09
    15 May 20192.0M-12.7%737K2.72
    30 April 20192.3M-10.5%870K2.64
    15 April 20192.6M-17.2%1.2M2.16
    29 March 20193.1M+31.1%1.2M2.62
    15 March 20192.4M+7.1%1.3M1.88
    28 February 20192.2M+1.3%1.3M1.67
    15 February 20192.2M-1.6%1.0M2.16
    31 January 20192.2M-0.9%1.0M2.11
    15 January 20192.2M+6.2%1.1M2.03
    31 December 20182.1M-13.3%1.5M1.40
    14 December 20182.4M-14.5%1.5M1.63
    30 November 20182.8M-11.6%1.6M1.78
    15 November 20183.2M+11.1%856K3.75
    31 October 20182.9M+16.6%1.4M2.03
    15 October 20182.5M+11.1%1.3M1.85
    28 September 20182.2M-22.2%1.3M1.68
    14 September 20182.9M+1.6%1.1M2.67
    31 August 20182.8M+26.1%1.2M2.28
    15 August 20182.2M-8.2%919K2.43
    31 July 20182.4M+17.0%1.1M2.15
    13 July 20182.1M+4.3%818K2.54
    29 June 20182.0M-5.1%978K2.04
    15 June 20182.1M-4.6%763K2.76
    31 May 20182.2M+12.7%1.2M1.89
    15 May 20182.0M+1.3%934K2.09
    30 April 20181.9M+1.3%1.1M1.73
    13 April 20181.9M-5.1%939K2.03
    29 March 20182.0M-15.9%936K2.15
    15 March 20182.4M-8.1%976K2.45
    28 February 20182.6M+5.2%1.5M1.72
    15 February 20182.5M-9.4%1.3M1.84
    31 January 20182.7M-7.2%812K3.36
    12 January 20182.9M-2.5%846K3.48
    29 December 20173.0M923K3.27
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.