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PTCT · Ptc Therapeutics, Inc. · Short Volume

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$62.66 -0.27 (-0.42%)
S&P 600 member Russell 2000 member Rebalance outlook locked
Customer concentration — top 4 customers 10% of revenue

4 customers — 10% of revenue (2025)

“During 2025, four of our distributors each accounted for over 10% of our net product sales.”
View the 10-K filed Feb 19, 2026
Market Cap
$5.25B
Shares
83.46M
Volume · Oct 21 414.59K Avg daily vol (3M) 1.12M

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

Pull daily short volume through the short interest API or MCP →
1M 3M 6M 1Y 5Y All
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    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-10-20 151,458 0 308,624 49.1%
    2026-10-19 127,347 0 379,355 33.6%
    2026-10-16 183,391 0 284,416 64.5%
    2026-10-15 180,294 0 343,917 52.4%
    2026-10-14 249,712 0 662,238 37.7%
    2026-10-13 125,071 0 340,654 36.7%
    2026-10-12 145,685 0 263,902 55.2%
    2026-10-09 247,682 0 610,980 40.5%
    2026-10-08 353,016 0 576,998 61.2%
    2026-10-07 113,229 0 418,165 27.1%
    2026-10-06 173,428 0 375,325 46.2%
    2026-10-05 151,600 898 389,371 38.9%
    2026-10-02 136,164 0 387,573 35.1%
    2026-10-01 245,574 0 448,707 54.7%
    2026-09-30 109,972 0 263,790 41.7%
    2026-09-29 195,566 0 368,398 53.1%
    2026-09-28 233,868 0 827,153 28.3%
    2026-09-25 225,237 0 499,761 45.1%
    2026-09-24 224,604 0 699,112 32.1%
    2026-09-23 214,837 0 385,523 55.7%
    2026-09-22 169,137 0 496,506 34.1%
    2026-09-21 184,728 0 423,837 43.6%
    2026-09-18 174,747 207 331,130 52.8%
    2026-09-17 324,529 0 481,656 67.4%
    2026-09-16 309,999 0 640,961 48.4%
    2026-09-15 232,189 5 382,566 60.7%
    2026-09-14 200,878 0 412,052 48.8%
    2026-09-11 187,015 0 358,367 52.2%
    2026-09-10 197,702 20 299,497 66.0%
    2026-09-09 190,874 0 347,173 55.0%
    2026-09-08 215,132 0 319,013 67.4%
    2026-09-04 139,341 0 207,434 67.2%
    2026-09-03 151,916 0 217,183 69.9%
    2026-09-02 172,512 0 316,827 54.4%
    2026-09-01 103,822 326 187,207 55.5%
    2026-08-31 193,130 0 260,229 74.2%
    2026-08-28 146,559 0 237,855 61.6%
    2026-08-27 168,336 0 254,827 66.1%
    2026-08-26 124,815 0 179,038 69.7%
    2026-08-25 98,365 0 188,590 52.2%
    2026-08-24 181,232 0 363,756 49.8%
    2026-08-21 97,536 9,740 178,329 54.7%
    2026-08-20 159,168 60 320,118 49.7%
    2026-08-19 272,966 0 712,729 38.3%
    2026-08-18 149,533 0 328,560 45.5%
    2026-08-17 125,706 0 189,849 66.2%
    2026-08-14 99,564 0 148,095 67.2%
    2026-08-13 149,501 0 215,593 69.3%
    2026-08-12 146,134 0 320,152 45.6%
    2026-08-11 238,483 0 323,970 73.6%
    Showing 1–50 of 65 days
    Key facts CIK 1070081 CUSIP 69366J200 13F (30d) 37 filings 36 filers Visit website Investor relations